taxonID	type	description	language	source
6A5FC813376EBD09FF31FB89C620FDD5.taxon	description	Phylloceras benacense – Neumayr 1871: 336, pl. 15, fig. 3. — Gemmellaro 1878: 165, pl. 1, fig. 1, pl. 3, fig. 1; 1882: 180, pl. 15, figs 1, 2, pl. 17, fig. 1.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD09FF31FB89C620FDD5.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 b / 2, MI 4 W 8 b / c / 2 (C. cf. benacense). STRATIGRAPHIC DISTRIBUTION. — Beds 8 b and 8 c of section Monte Inici East, which have been assigned to the Late Oxfordian Bimammatum Zone. The species is commonly reported from Oxfordian-Kimmeridgian strata.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD09FF31FB89C620FDD5.taxon	description	DESCRIPTION Inner mold of an involute shell with elliptical whorl section, rounded flanks and a relatively wide and strongly convex venter. The last whorl bears five to six furrows, which are shallow and rectiradiate in the upper half of the flank, gently prorsiradiate and deeper in the lower half of the flank. No test remains are preserved. The poor preservation of the suture lines does not allow the observation of their details. Measurements: see Table 1.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD09FF31FB89C620FDD5.taxon	discussion	DISCUSSION The studied specimens are rather similar to those identified by Gemmellaro (1878, 1882) with C. benacense.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD09FF67FC17C77FFB9B.taxon	materials_examined	TYPE SPECIES. — Phylloceras disputabile Zittel, 1869.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD09FD1FFD35C7D1FD65.taxon	materials_examined	TYPE SPECIES. — Ammonites tortisulcatus d’Orbigny, 1841.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD07FD11FC97C75EFDD5.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 6 c / 1, MI 4 N 6 e / 4, MI 4 N 6 e / 5, MI 4 N 6 e / 6, MI 4 N 6 e / 7, MI 4 N 6 f / 1, MI 4 N 8 a / 1, MI 4 N 8 a / 3, MI 4 N 8 top / 1, MI 4 N 8 a’ / 1, MI 4 W 6 e / 2, MI 4 W 8 a’ / 1, MI 4 W 8 c / 2. Specimens determined (as S. cf. tortisulcatum due to insufficient preservation): MI 3 9 / 6, MI 4 W 6 e / 3, MI 4 W 6 e / 4, MI 4 W 8 c / 1, MI 4 W 8 d / 2, MI 4 N 9 / 1, MI 4 W 9 / 1, MI 4 W 9 top / 1. STRATIGRAPHIC DISTRIBUTION. — The different specimens collected come from beds ascribed to the Middle Oxfordian Plicatilis and Transversarium zones and the Late Oxfordian Bimammatum Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD07FD11FC97C75EFDD5.taxon	description	DESCRIPTION Phylloceratids with a relatively evolute coiling. The whorl section is rectangular with a large, slightly rounded venter and almost flat flanks, rounded ventrolateral margins and rounded umbilical edge. The inner molds collected in the studied sections show four to five deep furrows on the last whorl: these are prorsiradiate, from the umbilical edge up to mid-flank or slightly below, and from mid-flank they abruptly take a rursiradiate direction. The furrows further change their direction around the ventrolateral margin; on the venter they show a clear adoral convexity. The adoral side of the fur- row is steep and its edge is very sharp, thus forming ventral ridges. Measurements: see Table 2.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813376EBD07FD11FC97C75EFDD5.taxon	discussion	DISCUSSION This is the most common species at Monte Inici. The preservation of the numerous collected specimens is far from satisfactory but clearly allows the identification of the d’Orbigny’s species. We refer the reader to Sarti (1993) for the clear definition of the limits of S. tortisulcatum and the similar, younger, species S. silenum (Fontannes, 1876) and S. loryi (Munier Chalmas in Pillet & De Fromentel, 1875) (but see Joly 2000 for further information about the creation of the latter species) and also for the detailed information on their biostratigraphic distribution. Sarti (2002) has also shown that the specimens ascribed by Gemmellaro (1871, 1876) to S. tortisulcatum actually belong to S. loryi.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD07FF2BFC97C187FC70.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 d / 1, MI 4 N 8 c / 2, MI 4 W 8 b / c / 1, MI 4 W 8 top / 1. Specimens determined as H. cf. polyolcum due to insufficient preservation: MI 4 N 6 e / 1, MI 4 N 8 “ top ” / 4. STRATIGRAPHIC DISTRIBUTION. — This species is rather common from bed 8 c to 8 d of section Monte Inici East, which have been assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone. The species probably appears in a layer because a specimen identified as H. cf. polyolcum has been found in bed 6 e, which has been assigned to the Transversarium Zone. This species is commonly reported from Lower Kimmeridgian to Tithonian strata (Sarti 1993). The studied material suggests for this species an earlier appearance than previously tought.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD07FF2BFC97C187FC70.taxon	description	DESCRIPTION Compressed, involute shell with elliptical whorl section. The umbilicus of this species is relatively wide when compared with the general phylloceratid morphology. Seven to nine furrows per whorl spring from the inner (dorsal) part of the umbilical margin. These furrows are radiate or prorsiradiate in the lower half of the flank but in a point roughly located slightly above the mid flank, they become shallower and larger; in the upper third of the flank the furrows are deeply excavated and rursiradiate. A ridge is developed on the adoral edge from the upper fourth of the flank and on the venter, where the furrows are adapically convex. No shell remains are preserved. Measurements: see Table 3.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD07FF2BFC97C187FC70.taxon	discussion	DISCUSSION The first report of this species from beds older than the basal Kimmeridgian (Cecca et al. 2001) can cast doubts on the identification of the studied specimens. They have been assigned to H. polyolcum because of their more numerous furrows, with a less sharply falcoid aspect than H. zignodianum (d’Orbigny, 1848) and H. mediterraneum (Neumayr, 1871) (the latter can be considered a synonym of the former as summarised by Pavia 2002). Suborder AMMONITINA Hyatt, 1889	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD07FF1BFD35C5A4FD65.taxon	materials_examined	TYPE SPECIES. — Phylloceras mediterraneum Neumayr, 1871.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD07FD5FFBC9C7D1FB40.taxon	materials_examined	TYPE SPECIES. — Macrocephalites helvetiae Tornquist, 1894.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD04FD4BFAA0C449FCF1.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 9 / 7. STRATIGRAPHIC DISTRIBUTION. — Bed 9 of section Castello Inici, which has been assigned to the Middle Oxfordian Plicatilis Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD04FD4BFAA0C449FCF1.taxon	description	DESCRIPTION Incomplete specimen corresponding to the body chamber of an individual that reached a diameter of about 60 mm. The shell is globular and rather involute. The whorl section is ovate, with convex flanks converging towards the narrow venter. The umbilical edge is rounded and no umbilical wall is visible. Bundles of two strong, radiate ribs spring from radial umbilical bullae. Single ribs are intercalated between the bundles.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133760BD04FD4BFAA0C449FCF1.taxon	discussion	DISCUSSION The poor preservation of our specimen prevents its precise identification. The morphologically closer species is Tornquistes (T.) romani. It is impossible to state if the specimen studied corresponds to an adult or to an immature individual but its rib density and, apparently, its umbilical width can be compared to immature specimens of similar diameter described by Thierry & Charpy (1982). The preservation does not allow observing whether the umbilical wall is really not developed or if it is simply not observable. Tornquistes (T.) multicostatum Thierry & Charpy, 1982 and T. (T.) helvetiae (Tornquist, 1896) have more evolute shells.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FF19FA8FC164FD14.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 “ top ” / 12. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 d of section Monte Inici East, assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FF19FA8FC164FD14.taxon	description	DESCRIPTION Smooth, evolute and compressed shell with a high, ovate whorl section. Flanks are slightly convex and converge towards a narrow, rounded venter. Due to the poor preservation both the umbilical edge and wall cannot be observed. Measurements: see Table 4.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FF19FA8FC164FD14.taxon	discussion	DISCUSSION The absence of sculpture and the structure of the shell correspond to haploceratid or lissoceratid characters. Both whorl section and shell dimensions of the studied specimen correspond to those of the species L. (L.) erato, but the preservation of the umbilical area does not allow a firm specific assignement. Family OPPELIIDAE Douvillé, 1890	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FF11FB08C767FB65.taxon	materials_examined	TYPE SPECIES. — Ammonites erato d’Orbigny, 1850.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FF45FBB6C5A6FBE1.taxon	materials_examined	TYPE SPECIES. — Ammonites psilodiscus Schloenbach, 1879.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FCB2F9ECC1B5F939.taxon	materials_examined	TYPE SPECIES. — Ammonites tenuilobatus Oppel, 1862.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FD6AFD75C1A0FCBE.taxon	materials_examined	TYPE SPECIES. — Ammonites trachinotus Oppel, 1863.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FD10FCF7C16CFA7F.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 W 8 b / c / 3. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 c of section Monte Inici West. It must be stressed that the tentative identification of this specimen also makes tentative the assignment of this bed to the Hauffianum Subzone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133763BD04FD10FCF7C16CFA7F.taxon	description	DESCRIPTION The specimen is a fragment of an inner mold. It shows the venter and the upper third of the flank of a portion of the shell that corresponds to the last part of the phragmocone and the beginning of the body chamber. The venter is large and rounded; it gradually passes to the flanks due to the lack of clear ventrolateral shoulders. Rounded tubercles are visible at the transition between the venter and the flanks. One or two ribs spring from the tubercles; three to four simple ribs are intercalated between two tubercles.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD05FD1FFB08C1B5FB65.taxon	materials_examined	TYPE SPECIES. — Perisphinctes antecedens Salfeld, 1914.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD05FD51FBB6C7D1FBE1.taxon	materials_examined	TYPE SPECIES. — Ammonites variocostatus Buckland, 1836.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD05FF72FF71C6E3FCB6.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 b / 1. OCCURRENCE. — The specimen has been collected in bed 8 b of section Monte Inici East, which has been assigned to the Bimammatum Zone. The species is reported from the Bimammatum up to the Planula Zone (Olóriz 1978, 2002).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD05FF72FF71C6E3FCB6.taxon	description	DESCRIPTION Involute, compressed shell. The whorl section shows slightly convex sides up to mid-flank where they converge towards a fastigate ventral area whose margins correspond to sharp ventrolateral shoulders. The venter is partly preserved: it bears a high crenulated keel that is visible up to the first half of the body chamber. Due to poor preservation, the ornamentation is incompletely visible. Some small tubercles corresponding to the ventrolateral tips of secondary ribs are visible in the last portion of the phragmocone. In the body chamber, the lower side of the flank only shows weak traces of ribs that give rise to radial bullae at mid-flank. In the upper side of the flank, adorally concave ribs spring from bullae: between two of these concave ribs, finer secondary ribs of different length are visible. Some of the secondary ribs seem to spring from the lateral bullae. All ribs stop at the ventrolateral shoulders. Complex suture with E as long as half of L and S 1 higher than the external saddle. Measurements: see Table 5.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD05FF72FF71C6E3FCB6.taxon	discussion	DISCUSSION The ornamentation of the phragmocone of the specimen from Monte Inici is almost invisible, thus making the comparison with the specimens figured in the literature (which are mostly phragmocones or seem to correspond to phragmocones) difficult. Our specimen has the closest morphological similarities with the one figured by Wegele (1929), which shows a weak sculpture in the last third of the last whorl and a comparable ontogenetical evolution of the ornamentation. As already observed by Christ (1960) and Olóriz (1978), it is not always easy to distinguish S. frotho from congeneric species like S. tenuilobatus (Oppel, 1863) and S. folgariacus (Oppel, 1863). The weakness of the ornamentation of our specimen is not entirely due to preservation failure and reflects a morphological transition towards S. tenuilobatus, from which it differs by the lower number of primary ribs.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD03FD55FA8AC740FCF6.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 9 / 3, MI 3 9 / 10. STRATIGRAPHIC DISTRIBUTION. — Bed 9 of section Castello Inici, which has been assigned to the Middle Oxfordian Plicatilis Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD03FD55FA8AC740FCF6.taxon	description	DESCRIPTION The two incomplete specimens correspond to evolute shells; the largest one probably reached the diameter of 12 cm. The whorl section is rectangular to subtrapezoidal, characterized by a relatively large venter, flat to gently round flanks, a well developed rounded umbilical margin and a flat to oblique umbilical wall. Ribs are strong and gently prorsiradiate. The two fragments only show biplicate ribs whose point of branching is located on the upper fourth of the flank.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133762BD03FD55FA8AC740FCF6.taxon	discussion	DISCUSSION The preservation of the studied specimens is too poor to allow a reliable identification. The ribbing and the general features of the shell suggest affinities with the group of P. antecedens. The specimens from Castello Inici bear a wider whorl section than the one developed by the type specimens studied by Arkell (1937) and by specimens from the Jura Mountains and from Beauvoisin (France), respectively described by Enay (1966) and Bourseau (1977). However, Enay (1966: 473) mentions that some specimens have flanks that converge towards the venter.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD03FD0AFC16C7D1FBC1.taxon	materials_examined	TYPE SPECIES. — Passendorferia brochwiczi Sequeiros, 1977.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD03FF33FC17C5A4FB86.taxon	materials_examined	TYPE SPECIES. — Perisphinctes kreutzi Siemiradzki, 1891.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD03FEACFBE8C11BFCF1.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 9 / 4. STRATIGRAPHICAL DISTRIBUTION. — The specimen has been collected in bed 9 of section Monte Inici East, which has been assigned to the Planula Zone. The specimens figured by Choffat (1893) were collected in layer 12 of Cabanas de Torres (Portugal), together with species of the genus Subnebrodites, which indicate the Planula Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD03FEACFBE8C11BFCF1.taxon	description	DESCRIPTION Compressed, evolute shell. The whorl section is subtrapezoidal, with flat flanks converging towards a narrow, gently rounded (almost flat) venter. Due to insufficient preservation, both the umbilical edge and the umbilical wall are not clearly visible. The ornamentation consists of numerous fine, prorsiradiate ribs. These spring from the umbilical edge and bifurcate at the upper third of the flank. Some ribs remain simple. Two ribs may be united on the umbilical edge to form rib bundles, which may be composed either by two bifurcate ribs or by a simple rib together with a bifurcate rib. According to Atrops (1982), these combinations are respectively called subpolyplocoid and incomplete subpolyplocoid ribs. At least in the first third of the body chamber a narrow smooth band interrupts ribs on the venter. Measurements: see Table 6.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD03FEACFBE8C11BFCF1.taxon	discussion	DISCUSSION This specimen shows some resemblances (coiling, whorl section) with some of the specimens figured by Choffat (1893). It has been provisionally identified in Cecca et al. (2001) as Perisphinctes sp. nov. aff. dybowskii Siemiradzki in Choffat (1893: pl. 10, fig. 1), from which our specimen differs because of its denser ribbing and the development of subpolyplocoid ribs. The latter are developed in S. castroi (Choffat, 1893) (see Choffat 1893: pl. 10, figs 5, 6), which is clearly more involute.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD00FD6EFB2EC4BAFA7F.taxon	description	Non Perisphinctes bocconii – Gemmellaro 1877: 91, pl. 4 bis, fig. 15.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD00FD6EFB2EC4BAFA7F.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 W 6 c / 3. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 6 c of section Monte Inici East, which has been assigned to the Middle Oxfordian Transversarium Zone. D’Arpa & Meléndez (2002) assumed that the vertical distribution of this species could correspond to an intermediate horizon between the Antecedens and Luciaeformis subzones, most probably the base of the Transversarium Zone. However, the precise stratigraphic position of Gemmellaro’s specimens remains unknown.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD00FD6EFB2EC4BAFA7F.taxon	description	DESCRIPTION Large evolute, serpenticone shell, which is represented by an incomplete whorl that seems to belong to the body chamber. The whorl section is subrectangular from a diameter of about 190 mm. The umbilical wall is not visible due to poor preservation; the venter and the umbilical margin are rounded, flanks are flat and almost parallel in the first half of the last whorl to become convergent towards its end. Primary ribs are strong, long, rounded, slightly prorsiradiate, irregularly spaced. The bifurcation of the ribs is not clearly visible because of the bad preservation. Ribs seemingly weakened on the venter and become more spaced towards the very last portion of the whorl. Measurements: see Table 7.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133764BD00FD6EFB2EC4BAFA7F.taxon	discussion	DISCUSSION The lack of inner whorls makes the identification of this single specimen quite difficult. However, the general characteristics of both the shell and its sculpture strongly suggest its identification with S. bocconii. Similar forms already assigned by Gemmellaro to S. bocconii (1877: pl. 4 bis, fig. 15) have been excluded from this species by Cecca et al. (2001) and then by D’Arpa & Meléndez (2002) who assigned them to Passendorferia pl. sp. indet. Our specimen resembles more the one from Ciacati Roccapalumba selected by D’Arpa & Meléndez (2002) as the lectotype of the species than the specimen collected in the locality “ Chiusa e Palazzo-Adriano ” figured by Gemmellaro in 1874. However, it is more evolute than the lectotype. There are also morphological resemblances with the specimen that Meléndez (1989: pl. 16, fig. 1) has figured with the name Sequeirosia (S.) n. sp. A.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133767BD00FCE9FF7EC7D1FEF9.taxon	materials_examined	TYPE SPECIES. — Ammonites birmensdorfensis Moesch, 1867.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133767BD1EFD56FE33C433FDD4.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 c / 1. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 d top of section Monte Inici East, which has been assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone. The species has been reported from older levels of the Bimammatum Zone, namely the Hypselum Subzone or the lower part of the Bimammatum Subzone (Atrops & Benest 1986; Meléndez 1989).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133767BD1EFD56FE33C433FDD4.taxon	description	DESCRIPTION Evolute shell with rounded, subcircular whorls. Up to the last quarter of the last whorl the whorl breadth is larger than the whorl height. The ventral area is large and rounded. The ribbing is dense, radiate to slightly prorsiradiate in the second half of the last whorl. Ribs generally bifurcate at the ventrolateral margin and at the upper quarter of the flank towards the mouth; simple ribs are rare. Up to a diameter of at least 53 mm secondary ribs are almost symmetrical with respect to the primary rib from which they spring but they are clearly projected forward in the last part of last whorl. Three oblique constrictions per whorl have been observed: one of them is adorally bounded by a swollen rib and is deeper than the others. The peristome is partly preserved: the venter shows a ridge whereas a broken lappet is visible on the flank after the final constriction. Measurements: see Table 8.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133767BD1EFD56FE33C433FDD4.taxon	discussion	DISCUSSION The specimen from Monte Inici is rather similar to the holotype of the species but shows a higher number of primary ribs. Furthermore parabolic nodes have not been observed (because of insufficient preservation?). However, Atrops & Benest (1986) have figured two specimens of this species devoid of parabolic nodes. Meléndez (1989) has created the species P. (E.) rozaki on the basis of a specimen that Brochwicz-Lewinski & Rozak (1976) originally included with doubts by in the species P. (E.) gygii. The latter is less evolute and more finely ribbed than P. (E.) rozaki. The separation between these two species may be questionable because of scarce morphological differences. P. (E.) sanpedroi Meléndez, 1989 has a rib density similar to that of the specimen here described but it is less evolute and its secondary ribs are not projected forward.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133767BD00FFDEF98CC472F939.taxon	materials_examined	TYPE SPECIES. — Nebrodites (Passendorferia) teresiformis Brochwicz-Lewinski, 1973.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133779BD1EFF64FD35C48EF939.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 “ top ” / 6. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 d of section Monte Inici East, assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone. P. (E.) gygii has been reported from older levels of the Bimam matum Zone, namely the Hypselum Subzone or the lower part of the Bimammatum Subzone (Meléndez 1989).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133779BD1EFF64FD35C48EF939.taxon	description	DESCRIPTION Evolute shell with subcircular whorls. The flanks are flat or gently rounded, the ventral area is large and rounded. No umbilical wall is developed. Dense, radial to gently prorsiradiate ribbing which is characterized by simple and biplicate ribs. The latter bifurcate at the ventrolateral margin. Two constrictions per whorl have been observed. No parabolic nodes have been observed. Due to the lack of any traces of suture line the diameter of the beginning of the body chamber cannot be observed. Measurements: see Table 9.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133779BD1EFF64FD35C48EF939.taxon	discussion	DISCUSSION The studied specimen shows some morphological affinities with P. (E.) gygii. However, the whorl shape, the fine, dense ribbing, the presence of parabolic nodes and also the prorsiradiate direction of the secondary ribs suggest keeping it distinct from P. (E.) gygii sensu stricto.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133778BD1DFD49FEF1C5D4FE4A.taxon	materials_examined	TYPE SPECIES. — Simoceras agrigentinum Gemmellaro, 1872.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133778BD1DFD49FEF1C5D4FE4A.taxon	discussion	REMARKS Several authors (Brochwicz-Lewinski 1973; Meléndez 1989; Sarti 1990, 1993) have discussed the systematic position of this genus within the subfamily Idoceratinae Spath, 1924 and its relationships with the genus Passendorferia. Caracuel et al. (1999) have included Nebrodites within the subfamily Passendorferiinae instead of Idoceratinae. The appearance of the genus Nebrodites has long been dated to the Early Kimmeridgian Strombecki Zone (Olóriz 1978). Benzaggagh & Atrops (1997) and Caracuel et al. (1999) have recently figured earlier forms of the Platynota Zone. However, Schweigert & Callomon (1997) lowered to the Bimammatum Zone, Hauffianum Subzone, the age of the type level of the species Nebrodites macerrimus (Quenstedt, 1888). These authors (1997: 35) seem to question (because of the unusually early occurrence of a Nebrodites - like morphology?) the systematic position of the species macerrimus within Nebrodites because they used this generic name between inverted commas and consider it the microconch of the species Presimoceras nodulatum (Quenstedt, 1888). A Nebrodites - like morphology described below as Nebrodites aff. contortus (Neumayr, 1871) has been found at Monte Inici in a bed assigned with doubt to the Hauffianum Subzone. Careful investigations in the distal areas of the Mediterranean Tethys are needed to improve our knowledge of the phyletic relationships between the typical Nebrodites and the forms included in the subfamily Passendorferiinae, a point already stressed by Caracuel et al. (1999). One can ask whether the subfamilies Passendorferiinae and Idoceratinae are actually two distinct taxons or just a single lineage. Finally, Villaseñor & Olóriz (2006) have demonstrated that the Mexican forms of Idoceras originally described by Burckhardt (1906) do belong to the family Ataxioceratidae, making the use of the subfamily Idoceratinae unnecessary.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377ABD1DFF30FDB2C638FDD4.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 d / 2. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 d top of section Monte Inici East, which has been assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377ABD1DFF30FDB2C638FDD4.taxon	description	DESCRIPTION Evolute, serpenticone, shell. Only the last whorl is preserved. The whorl section is elliptical, with flat to slightly rounded flanks and rounded venter. The umbilical edge is rounded and no umbilical wall is developed. The ornamentation consists of numerous radial to slightly prorsiradiate single and biplicate ribs which branch in the upper third of the flank. The ribs are attenuated on the venter. Two deep and oblique constrictions are visible in the last whorl: they are adorally bounded by strong, swollen, ribs. A third, final constriction precedes the mouth, which is marked by an abrupt lateral expansion of the whorl that acquires a subcircular section. Measurements: see Table 12.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377ABD1DFF30FDB2C638FDD4.taxon	discussion	DISCUSSION This single specimen shows the typical characters of the genus Nebrodites (i. e. evolute coiling, biplicate ribs branching in the upper third of the flank, deep constrictions and attenuated ribbing on the venter), whose first appearance is generally recorded at the beginning of the Kimmeridgian. The morphological characters of this specimen are clear-cut and certainly do not allow its assignment to the genus Passendorferia, thus suggesting the appearance of the genus Nebrodites since the upper part of the Bimammatum Zone. This supports the recent reappraisal of the age of the type level of the species Nebrodites macerrimus by Schweigert & Callomon (1997). Neumayr (1871: 369, pl. 21, fig. 1) described the species Simoceras contortum, which shows Nebrodites characters, from limestones of an unknown Oxfordian horizon. The specimen found at Monte Inici differs from this species because of its narrower whorls, the higher position of the point of bifurcation (upper third of the flank instead of mid flank) and, probably, the lower number of constrictions.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377ABD1BFCAFFD35C725FD74.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 W 10 top / 2. STRATIGRAPHIC DISTRIBUTION. — Top of bed 10 of section Monte Inici East, which has been assigned to the Early Kimmeridgian Platynota Zone, associated with Orthosphinctes (Ardescia) beticus Caracuel, Olóriz & Rodriguez-Tovar, which has been reported from the middle part of the Platynota Zone whereas the type specimens of N. passendorferiiforme have been reported from the upper part of the Platynota Zone (Caracuel et al. 1999: fig. 2).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377ABD1BFCAFFD35C725FD74.taxon	description	DESCRIPTION Small, evolute shell with subcircular whorls. The ornamentation mostly consists of an alternation of simple and biplicate ribs. These are radial in the inner whorls, becoming slightly prorsiradiate in the last third of the last whorl. Bifurcate ribs branch at the upper third of the flank and are slightly projected forward. Ribs form an adoral convex trend on the venter. Two deep, oblique, constrictions and a weaker one occur on the last whorl. Due to the incomplete preservation, it is impossible to know whether other constrictions occurred or not. Measurements: see Table 13.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377ABD1BFCAFFD35C725FD74.taxon	discussion	DISCUSSION The described specimen bears a clear macerrimus - like aspect. It is almost identical to the specimen figured by Geyssant (1966: pl. 1, fig. 6). The latter has been implicitely considered different from N. macerrimus because Caracuel et al. (1999) acknowledged that it is possibly conspecific with N. passendorferiiforme, although they did not include it in the synonymy of the latter species. Due to Schweigert & Callomon’s (1997) data about the Late Oxfordian age of the type level of N. macerrimus, a new appraisal of the Early Kimmeridgian specimens ascribed to this species is needed (Caracuel et al. 1999). The specimen from Monte Inici differs from the type specimens of N. passendorferiiforme for the less numerous constrictions (but note that the shell of our specimen is incompletely preserved).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377CBD1BFF0BFC97C172FCF6.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 W 10 top / 3, MI 4 W 10 top / 4. STRATIGRAPHIC DISTRIBUTION. — Bed 10 of section Monte Inici East, which has been assigned to the Early Kimmeridgian Platynota Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377CBD1BFF0BFC97C172FCF6.taxon	description	DESCRIPTION Evolute shell. Only the lower third of the flank of the final part of the last whorl is preserved in specimen MI 4 W 10 top / 3 on which the description is based. The whorl section is subelliptical, with gently rounded flanks and venter. The ribbing is rectiradiate to slightly prorsiradiate with an almost regular alternance of simple and bifurcate ribs. These branch at the upper third of the flank and become slightly projected on the venter, where they stop along a smoothed band. The incomplete preservation prevents the observation of the real number of constrictions: three constrictions per whorl have been observed on the preserved portions. The body chamber is not preserved, except for the final part of the last whorl. A small fragment (MI 4 W 10 top / 4) of the body chamber of an individual, which probably reached the diameter of 90 mm, shows the same ornamental characters. Sculpture did probably not undergo significant ontogenetic changes. Measurements: see Table 14.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377CBD1BFF0BFC97C172FCF6.taxon	discussion	DISCUSSION The form described above bear morphologic affinities with the specimen figured by Benzaggagh & Atrops (1997: pl. 1, fig. 6) as N. hospes suteri Geyssant, 1966, which is a morphotype originally considered as a subspecies that groups evolute and densely ribbed specimens of N. hospes. Sarti (1993) has questioned the use of this subspecies which he includes within N. hospes sensu stricto. The preservation of our specimens is too incomplete to reach a reliable determination. Nevertheless, their finding in association with Orthosphinctes (Ardescia) beticus Caracuel, Olóriz & Rodriguez-Tovar, 1999 further confirms the occurrence of typical Nebrodites in the Platynota Zone. Family ASPIDOCERATIDAE Zittel, 1895	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377CBD18FCA4FC17C40CFD77.taxon	materials_examined	TYPE SPECIES. — Ammonites transversarius Quenstedt, 1847.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377CBD18FCA4FC17C40CFD77.taxon	discussion	REMARKS The Sicilian specimens of the genus Gregoryceras originally described by Gemmellaro (1877) have been recently revised by D’Arpa & Meléndez (2002). These authors have proposed a Gregoryceras - based biostratigraphic scale on the basis of the Sicilian specimens and on the revision of the literature (D’Arpa & Meléndez 2004), focusing on the species G. riazi (de Grossouvre, 1917), G. transversarium (Quenstedt, 1847) and G. fouquei (Kilian, 1889). More recently, the systematics of the genus Gregoryceras has been almost entirely revised (with the exception of the fouquei group) by Bert (2004) on the basis of material collected in SE France. This author also proposes an accurate biostratigraphical correlation of the vertical succession of Gregoryceras species with the Submediterranean zonation. It is worth noting that Bert’s biostratigraphical conclusions are based on the co-occurrence of Gregoryceras representatives together with Submediterranean perisphinctids in SE France. This author distinguishes different chronospecies, corresponding to segments of a substantially anagenetic line within the genus Gregoryceras. The limits between these species are not easy to recognize and the stratophenetic succession proposed by Bert cannot be tested in the Mediterranean regions because a succession of species as complete as the one available in SE France has not been discovered yet. The systematic and biostratigraphic conclusions of Bert (2004) are accepted in this paper and the proposed chronospecies succession from G. iteni Jeannet, 1951 up to G. devauxi is adopted. The conclusions of D’Arpa & Meléndez (2002, 2004) about the group of G. fouquei are also taken into account here.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377FBD18FEA4FC94C492F939.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 9 / 8. STRATIGRAPHIC DISTRIBUTION. — Bed 9 of section Castello Inici, which has been assigned to the Middle Oxfordian Plicatilis Zone. According to Bert (2004), the distribution of G. defayi is limited to the Middle Oxfordian Plicatilis Zone and in particular to the lower part of the Vertebrale Subzone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377FBD18FEA4FC94C492F939.taxon	description	DESCRIPTION The fragment collected at Castello Inici shows a large, subcircular whorl section. The flanks are rounded; the umbilical wall is large and oblique, passing to a rounded umbilical margin. No traces of sculpture are visible up to 20 mm. The preserved fragment of the last whorl shows strongly rursiradiate ribs. No sculpture is visible on the umbilical wall of the last whorl.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377FBD18FEA4FC94C492F939.taxon	discussion	DISCUSSION Despite the strongly incomplete preservation, this specimen can be compared with G. defayi. G. tenuisculptum Gygi, 1977 differs because of its shorter smooth initial stage. Gregoryceras iteni (Jeannet, 1951) bears ventrolateral thickenings which are not visible in our specimen.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377FBD18FD76FF7EC699F939.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 10 / 1. STRATIGRAPHIC DISTRIBUTION. — Interval 10 of Castello Inici section. According to Bert (2004) G. riazi is limited to the Middle Oxfordian Plicatilis Zone, lower part of the Antecedens Subzone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377FBD18FD76FF7EC699F939.taxon	description	DESCRIPTION Deformed specimen showing an evolute shell with subtrapezoidal whorl section. Large, slightly rounded umbilical wall, which is connected to the flank through a rounded umbilical margin. Flanks are almost flat in the last whorl; venter is almost flat. Sculpture is characterized by strong ribs, springing, simple or in pairs, from primary ribs that, at their turn, originate from umbilical tubercles or bullae. From the inner third of the flank, ribs are strongly rursiradiate. Rib branching is observed at the outer third of the flank. Ribbing is already developed from a diameter of 15 mm and probably (but preservation is insufficient) starts towards 12 mm. All ribs slightly thicken at the ventrolateral margin and then cross the venter without interruption. No traces of peristome are visible. Suture lines are not visible. Measurements: see Table 15.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC813377FBD18FD76FF7EC699F939.taxon	discussion	DISCUSSION The preservation of this specimen is far from satisfactory but observable characters allow the assignment to G. riazi. The species G. riaziformis Bert, 2004 differs from G. riazi on the basis of its larger adult size, the earlier development of the sculpture (10.5 instead of 12 mm), the less rursiradiate and flexuous ribbing, and finally its slightly younger age (upper part of the Antecedens Subzone). The distinction between G. riazi and G. riaziformis is however very difficult.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133771BD16FF64FF7EC743FB72.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 11 a / 1. STRATIGRAPHIC DISTRIBUTION. — Interval 11 of Castello Inici section. According to Bert (2004) G. ferchaudi is limited to the Middle Oxfordian Plicatilis Zone, Parandieri Subzone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133771BD16FF64FF7EC743FB72.taxon	description	DESCRIPTION Evolute shell with subtrapezoidal whorl section, large and flat umbilical wall. Flanks are almost flat in the last whorl and slightly rounded in the internal whorls. Venter is slightly rounded. Sculpture is characterized by strong rursiradiate ribs, springing, simple or in pairs, from primary ribs which, at their turn, originate from umbilical tubercles or bullae. Ribs are already developed from a diameter of 7 mm. All ribs slightly thicken at the ventrolateral margin and then cross the venter without interruption. No traces of peristome are visible. Due to the lack of any traces of suture line the diameter of the beginning of the body chamber cannot be observed. Measurements: see Table 16.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133771BD16FF64FF7EC743FB72.taxon	discussion	DISCUSSION The studied specimen is poorly preserved thus making sculpture details not accurately visible. It shows however strong morphological similarities with one of the specimens figured by Gygi (1977: pl. 2, fig. 2) as “ mittlere Variante ” of the species G. riazi.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133771BD17FF38FA8AC415FA1C.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 a / 2, MI 4 N 8 a / 3, MI 4 W 6 c / 2 (G. cf. devauxi). STRATIGRAPHIC DISTRIBUTION. — The largest specimen has been collected from bed 6 c of section Monte Inici East, whereas the smaller ones have been collected in bed 8 a of the same section. According to Bert (2004), the range of G. devauxi coincides with the range of the Schilli Subzone that is the second Subzone of the Middle Oxfordian Tranversarium Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133771BD17FF38FA8AC415FA1C.taxon	description	DESCRIPTION Evolute shell with a subtrapezoidal whorl section characterized by flat flanks and a relatively large, almost flat, venter. Strong sculpture made of rursiradiate ribs which spring, single or in pairs, from strong, prominent, umbilical tubercles and / or bullae. The latter clearly originate from the base of the umbilical wall. Ribs slightly thicken in the upper part of the flank giving rise to small, rounded ventrolateral tubercles. Simple ribs, which do not reach the umbilical margin, are intercalated between the ribs originating from the umbilical tubercles. No bifucations are observed. All ribs cross the venter without interruption forming a gentle adapical convexity, although in the last quarter of the last whorl they tend to become straight. It is impossible to know whether the studied specimens bear the body chamber or not, as no sutures are visible. The three specimens found at Monte Inici are not morphologically identical. Specimen MI 4 N 8 a / 2 shows umbilical bullae (or thickened primary ribs), whereas MI 4 N 8 a / 3 has a steep umbilical wall, a more spaced ribbing and thicker bullae that mimic prominent tubercles. A fragment of a larger individual (specimen MI 4 W 6 c / 2 determined as G. cf. devauxi) is still septated at a diametre of about 100 - 110 mm. Ribs have lost their adapical convexity but are still gently rursiradiate and form a ventrolateral tubercle (Fig. 10). Measurements: see Table 17.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133771BD17FF38FA8AC415FA1C.taxon	discussion	DISCUSSION The described specimens correspond to three morphologies that can be ascribed to G. devauxi. Specimen MI 4 N 8 a / 2 (Fig. 9 A) recalls, at similar diameters, some specimens already figured in the literature: – the specimen figured by Bert (2004: pl. 22, fig. 4), which differs in the presence of bifurcate ribs from the umbilical margin; – the specimen figured by Gygi (1990: fig. 7) with the name G. fouquei; – the specimen figured by Gemmellaro (1874: pl. 1, fig. 1) with the name G. fouquei (identification confirmed by D’Arpa & Meléndez 2002), although at the same diameter (i. e. up to the first third of the last whorl) our specimen is more evolute. At a comparable diameter, specimen MI 4 N 8 a / 3 (Fig. 9 B), which is characterized by definitely rursiradiate ribs, strongly resembles the one figured by Bert (2004) in pl. 21, fig. 2. It also shows some morphological similarities with other specimens figured by Bert (2004: pl. 20, fig. 1; pl. 22, fig. 1) and also to the inner whorls of the holotype (Bert 2004: pl. 17, fig. 1 c) but it differs because of its wider umbilicus. Specimen MI 4 W 6 c / 2 (Fig. 10) resembles the specimen figured by Bert (2004) in pl. 17, fig. 1. It also may recall forms ascribed to G. fouquei or G. aff. fouquei (see D’Arpa & Meléndez 2004). However, no splitting of the ventrolateral tubercle occurs and its ribs are gently rursiradiate. The differences between G. devauxi and the forms ascribed to both G. aff. fouquei and G. fouquei have been described by Bert (2004), to whose paper we refer the reader.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133770BD15FF2CFA6DC4C6FEAB.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 W 6 a / 1. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 6 a of section Monte Inici East. According to Bert (2004) G. tranversarium is limited to the base of the middle Oxfordian Transversarium Zone, Luciaeformis Subzone whilst G. devauxi has a vertical range coinciding with that of the Schilli Subzone. The specimen described can be assigned to the middle or upper part of the Transversarium Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133770BD15FF2CFA6DC4C6FEAB.taxon	description	DESCRIPTION Evolute shell with a subtrapezoidal whorl section. Flanks are gently rounded in the first half of the last whorl and then almost flat in the second half; they converge towards a relatively narrow, gently rounded venter. The umbilical edge is rounded; the umbilical wall is oblique and well developed in the last whorl. The sculpture is not visible up to a diameter of almost 34 mm. Rursiradiate ribs spring, single or in pairs, from rounded umbilical tubercles. In the last quarter of the last whorl ribs spring from strong, elevated umbilical bullae and tend to become rectiradiate. Due to the poor preservation of the umbilical wall it seems that ribs originate from the umbilical margin, except the four last preserved bullae that start from the upper part of the umbilical wall. No rib branching above the inner third of the flank is observed in the last two thirds of the last whorl (the first third is insufficiently preserved). Ribs thicken on the ventrolateral margin where they tend to form extremely weak tubercles. Ribs cross the venter strengthened and without interruption; they are here gently convex adapically, although in the last quarter of the last whorl they tend to become almost straight. As weak traces of sutures are visible up to a diameter of almost 45 mm only, it is impossible to know whether this specimen bears the body chamber or not. Measurements: see Table 18.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133770BD15FF2CFA6DC4C6FEAB.taxon	discussion	DISCUSSION The ribbing of G. (G.) transversarium is strongly rursiradiate and often shows biplicate ribs in the outer third of the flank. The ribbing of the specimen described recalls G. (G.) fouquei, which differs because of its less evolute coiling and its vertical umbilical wall. Gregoryceras devauxi, the species that follows G. tranversarium in the anagenetic succession of chronospecies proposed by Bert (2004), differs because of its clearly developed tubercles on the ventrolateral margin. The described specimen likely corresponds to an immature individual of G. devauxi as suggested by the comparison, at the same diameter, with some of the specimens figured by Bert (2004: pl. 19, figs 1, 2).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD15FF79FDF5C40EFA7C.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 9 / 9. STRATIGRAPHIC DISTRIBUTION. — Bed 9 of section Castello Inici, which has been assigned to the Middle Oxfordian Plicatilis Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD15FF79FDF5C40EFA7C.taxon	description	DESCRIPTION The specimen is an eroded internal mold of an aspidoceratid whose size is approximately 85 mm. The inner whorls are dissolved but traces of ventrolateral tubercles are visible from a diameter of 7 mm. Eight tubercles per whorl exist at a diameter of approximately 21 mm. No traces of umbilical tubercles and ribs are visible. The preserved portion of the last whorl shows traces of ventrolateral tubercles and corroded folds that likely are rib remains. Because any traces of suture lines are visible it is impossible to state whether this specimen bears the body chamber or not. Due to the incomplete preservation, measurements cannot be taken.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD15FF79FDF5C40EFA7C.taxon	discussion	DISCUSSION The preservation of the specimen is extremely poor but the tubercles of the inner whorls and the coiling aspect suggest a tentative comparison with E. lytoceroide.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD15FF6EFE10C5A4FDBB.taxon	materials_examined	TYPE SPECIES. — Ammonites perarmatus J. Sowerby, 1822.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD13FF17F98CC777FA1D.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 6 d / 1. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 6 d of section Monte Inici East, assigned to the Transversarium Zone. According to Bonnot & Gygi (2001), this species occurs within the Transversarium Zone from the top of the Antecedens Subzone up to the top of the Luciaeformis Subzone. In Bert’s (2004) stratigraphic scheme this stratigraphic range corresponds to an interval spanning from the top of the Antecedens Subzone of Plicatilis Zone sensu Bert 2004 up to the top of the Luciaeformis Subzone of the Transversarium Zone sensu Bert 2004.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD13FF17F98CC777FA1D.taxon	description	DESCRIPTION The specimen is an entirely septated internal mould showing an evolute coiling. The whorl section is subquadratic, the flanks are flat. Neither the umbilical edge, nor the umbilical wall, is developed. The sculpture is made of two rows of tubercles, periumbilical and ventrolateral. The periumbilcal tubercles are rather bullae, i. e. they are shortly stretched along the height, whereas the ventrolateral tubercles have the aspect of spines. An extremely weak rib links the tubercles of the two rows. The preservation of the early whorls does not allow precise measurement of the diameter where tubercles begin. Nevertheless, the first visible ventrolateral spine occurs at a diameter of almost 16 mm, whereas the first ventrolateral bulla is visible at an approximate diameter of 18 mm. Measurements: see Table 19.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD13FF17F98CC777FA1D.taxon	discussion	DISCUSSION The preservation of this single specimen is far from satisfactory. However, its visible characters suggest the comparison with E. oegir. Our specimen shows, at the same diameter, close ornamental characters to the well preserved specimens of this species recently illustrated by Bonnot & Gygi (2001) and only differs because of its lower whorl height.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD13FF17F98CC777FA1D.taxon	materials_examined	MATERIAL EXAMINED. — MI 3 8 top- 9 / 1. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected at the boundary between beds 8 and 9 of Castello Inici section and possibly it belongs to the very base of bed 9. This species is reported from the Middle Oxfordian Plicatilis Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD13FF17F98CC777FA1D.taxon	description	DESCRIPTION Incomplete specimen of a large individual characterized by an evolute shell whose diameter could have reached almost 210 mm. The visible inner whorls are preserved as a cast while the last whorl is an inner mould. Up to a diameter of almost 22 mm the sole sculptural elements preserved are external tubercles (these corresponded to spines almost perpendicular to the flank as demonstrated by their impression on the sediment) located on the ventrolateral edge. An umbilical row of tubercles is visible at 30 mm but probably appears around 22 - 24 mm. The two rows of tubercles correspond to extremities of shallow ribs. The interspaces between two ribs bear fine, radial growth-lines. Between 80 and 115 mm the sculptural characteristics are poorly visible, with the exception of growth-lines that appear to be rursi-radiate on the wide, oblique, umbilical wall. The second half of the last whorl belongs to the body chamber and is characterized by spaced ribs that bear umbilical and ventrolateral tubercles.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133772BD13FF17F98CC777FA1D.taxon	discussion	DISCUSSION The preservation of the studied specimen does not allow a firm identification. The succession of ornamental stages is similar to the one described by Arkell (1940: 212, 213) but in our specimen the onset of the two rows of tubercles is recorded at lower diameters. Two laevaptychi are visible at the end of the last whorl but it is difficult to state whether they belonged to this individual or not.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD13FCADFB28C7D1FB60.taxon	materials_examined	TYPE SPECIES. — Ammonites rogoznicensis Zeuschner, 1846.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD13FF22FA6CC7FEFB90.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 “ top ” / 8. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected at the top of bed 8 of section Monte Inici East, assigned with doubt to the Hauffianum Subzone of the late Oxfordian Bimammatum Zone. The holotype of E. radisense comes from of the Bimammatum Zone, probably the lower part (Hantzpergue 1994).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD13FF22FA6CC7FEFB90.taxon	description	DESCRIPTION Evolute shell of about 92 mm of diameter. The whorl section is subrectangular, with flat flanks, rounded ventrolateral margins and a large, rounded venter. The umbilical area is badly preserved, but the umbilical margin appears to be rounded and the umbilical wall is seemingly vertical. Small, rounded tubercles are developed on the umbilical margin of the last whorl. Shallow ribs are visible in the last portion of the last whorl. Due to the lack of any traces of suture line the diameter of the beginning of the body chamber cannot be observed. Measurements: see Table 20.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD13FF22FA6CC7FEFB90.taxon	discussion	DISCUSSION Despite its insufficient preservation this specimen shows the characteristics of d’Orbigny’s species. Clambites clambus (Oppel, 1863) shows morphological similarities, namely the shape of the whorl section and the presence of shallow ribs. However, it differs because umbilical tubercles are almost absent.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD10FD72FA8BC5D3FC11.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 6 F / 2. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 6 f of section Monte Inici, which is assigned to the upper part of the Transversarium Zone, Schilli Subzone, because of the occurrence of G. devauxi in beds 6 c and 8 a. This specimen could therefore represent the oldest record of the genus Aspidoceras. Olóriz et al. (1999: 91) stress the FAD of Aspidoceras gr. binodum at the bottom of the Bimammatum Zone or even in the Hypselum Subzone. In the Subbetic Zone the genus Aspidoceras appears in the upper part of the Bifurcatus Zone with A. sesquinodosum (Fontannes, 1876) whilst A. binodum appears at the base of the Bimammatum Zone (Olóriz et al. 1998). New findings of better-preserved specimens are needed to confirm this early occurrence of Aspidoceras.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD10FD72FA8BC5D3FC11.taxon	description	DESCRIPTION Fragment of the internal mold of an individual that reached a diameter of at least 100 mm. The whorl section is depressed, with rounded venter and flanks. A row of tubercles is developed right below the lower half of the flank. A periumbilical row of tubercles is also developed but poorly visible due to insufficient preservation of the umbilical edge. No sutures are visible.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133774BD10FD72FA8BC5D3FC11.taxon	discussion	DISCUSSION The aspect of the whorl section associated to the rows of tubercles strongly recall A. binodum. Nevertheless, the identification of our specimen is purely tentative because of its incomplete preservation.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FD4FFC16C7D9F939.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 W 8 c top / 1. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 d of section Monte Inici East, assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FD4FFC16C7D9F939.taxon	description	DESCRIPTION Moderately involute shell. Depressed whorl section with convex flanks, large and rounded venter. The umbilical edge is rounded and the umbilical wall is almost vertical. Periumbilical tubercles are large and tend to widen on the flank. The suture line is characterized by L as deep as E and S 1 almost as high as S 2. Measurements: see Table 22.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FD4FFC16C7D9F939.taxon	discussion	DISCUSSION The preservation of this specimen does not allow a more accurate determination. Nevertheless coiling, whorl and tubercle shapes are typical of B. bene ttii. The species B. vaii Sarti, 1993 is more evolute.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FCA3FC94C19CFC19.taxon	materials_examined	TYPE SPECIES. — Benetticeras benettii Checa, 1985.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FF68FB89C5A4FB01.taxon	materials_examined	TYPE SPECIES. — Ammonites circumspinosus Quenstedt, 1849.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FF01FB6BC6BBFD77.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N 8 c / 3. STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8 c of section Monte Inici East, assigned with doubt to the Hauffianum Subzone of the Late Oxfordian Bimammatum Zone.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FF01FB6BC6BBFD77.taxon	description	DESCRIPTION Moderately evolute shell, with a deep umbilicus and a large whorl section. Whorl flanks are almost flat and converge towards a rounded, large venter. The umbilical wall is steep and the umbilical margin is rounded. Due to crushing, the whorl section is not correctly observable in the body chamber. The ornamentation is made of small, rounded, periumbilical tubercles. The suture line is characterized by L as deep as E and S 1 slightly higher than S 2. Measurements: see Table 21.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133777BD10FF01FB6BC6BBFD77.taxon	discussion	DISCUSSION The preservation does not allow a firm identification of this specimen. A similar species is P. insulanum (Gemmellaro, 1874), which has been considered synonym of P. wolfi by Checa (1985). In the recent revision of the Gemmellaro species, D’Arpa & Meléndez (2002) keep the latter distinct from P. wolfi because of the wider whorl-breadth and the stronger tubercles. The characters visible in the phragmocone of our specimen suggest the comparison with P. wolfi.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133776BD11FF30FE73C6ABFDF4.taxon	discussion	DISCUSSION This specimen shows morphological affinities with the lectotype of O. (O.) tiziani selected by Wegele (1929: pl. 1, fig. 4), from which it differs because of the lower rib density.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133776BD11FF37FEF0C75CFE3D.taxon	materials_examined	TYPE SPECIES. — Ammonites tiziani Oppel, 1863.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133776BD2FFD53FD14C436FD34.taxon	materials_examined	matum Zone by Olóriz et al. (1999) and Caracuel et al. (2000).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133776BD2FFD53FD14C436FD34.taxon	description	the details and it mainly consists of biplicate and intercalatory ribs; simple ribs rarely occur. In the last quarter of the last whorl two constrictions are visible: the adapical one is deep and oblique to ribbing, the second is shallow and almost parallel to ribbing. The mouth is not preserved and no traces of suture line are visible. It is therefore impossible to recognize whether the specimen is entirely septated or not. Measurements: see Table 24.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133776BD2FFD53FD14C436FD34.taxon	discussion	DISCUSSION The identification of this specimen is difficult because of its insufficient preservation. It is impossible to state whether it is a microconch or an immature macroconch because any traces of the suture line are visible. From a pure morphologic point of view it shows some morphological similarities with O. (O.) fontannesi (Choffat 1893: 40, specimens figured in pl. 9, figs 1 and 3 only). However, with respect to our specimen, this species shows finer ribs, a wider umbilicus and a different position of the constrictions in the last whorl. At a comparable diameter O. (O.) mogosensis (Choffat 1893: 50, pl. 12, figs 5 - 8) has a narrower umbilicus and a slightly narrower ventral area.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133748BD2FFF77FD54C778FCD9.taxon	materials_examined	TYPE SPECIES. — Ataxioceras desmoides Wegele, 1929.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133748BD2FFF6DFCD7C16FFE75.taxon	materials_examined	MATERIAL EXAMINED. — MI 4 N top 10 / 1. STRATIGRAPHIC DISTRIBUTION. — Top of bed 10 of section Monte Inici East, Platynota Zone. It has been reported from the middle part of the Platynota Zone (Caracuel et al. 1999: fig. 2).	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133748BD2FFF6DFCD7C16FFE75.taxon	description	DESCRIPTION Evolute, planulate shell. Subelliptical whorl section with slightly rounded flanks that converge towards a rounded venter. The umbilical wall is well developed and the umbilical margin is rounded. The ornamentation is characterized by prorsiradiate ribs, which branch at the outer third of the flank. An intercalatory rib is observed between two bifurcates. At least three constrictions are visible on the last whorl; the deepest one, which is located close to the end of the last whorl, shows a slight adoral convexity. No traces of peristome and sutures are preserved. Measurements: see Table 25.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
6A5FC8133748BD2FFF6DFCD7C16FFE75.taxon	discussion	DISCUSSION The poor preservation of this specimen does not allow the detailed study of the ornamental characters. It shows strong morphological similarities in both the ornamentation and the shell structure with the specimen studied by Caracuel et al. (1999: figs 3, 4), named O. (Ardescia) beticus. Species of the subgenus Ardescia described by Atrops (1982) from South- East France show different rib characters.	en	Cecca, Fabrizio, Savary, Bérengère (2007): Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy). Geodiversitas 29 (4): 507-548, DOI: 10.5281/zenodo.4651042
