identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
4D1287FBCB3AFFDFFF983391FA14FB3D.text	4D1287FBCB3AFFDFFF983391FA14FB3D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Procymaclymenia Korn 2002	<div><p>Procymaclymenia Korn, 2002</p><p>Type species:  Cymaclymenia inflata Czarnocki, 1989, p. 67 (original designation (Korn in Korn and Klug, 2002, p. 220); not “  Cymaclymenia fundifera Czarnocki, 1989 ” as erroneously stated on p. 280).</p><p>Genus definition: Genus of the  Cymaclymeniidae with blunt, slightly asymmetric lateral lobe.</p><p>Discussion:  Procymaclymenia is a genus that closely resembles  Cymaclymenia in conch shape, but differs in the less developed lateral lobe. While this lobe in  Cymaclymenia is strongly asymmetric and pointed at the ventral side, it is less asymmetric in  Procymaclymenia and does not show the acute ventral side. The genus has thus an intermediate position between  Genuclymenia (with widely rounded lateral lobe) and  Cymaclymenia (with acute lateral lobe).</p><p>The genus has a much more restricted geographic occurrence than  Cymaclymenia . Records are so far only known from the Holy Cross Mountains (Czarnocki, 1989), the South Urals (Nikolaeva and Bogoslovsky, 2005) and North Africa.</p></div>	https://treatment.plazi.org/id/4D1287FBCB3AFFDFFF983391FA14FB3D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB3AFFDEFCD73297FB36FA9C.text	4D1287FBCB3AFFDEFCD73297FB36FA9C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Procymaclymenia ebbighauseni Klein & Korn 2014	<div><p>Procymaclymenia ebbighauseni n. sp.</p><p>Figures 11 and 12</p><p>1960  Cymaclymenia striata . – Petter, p. 47, pl. 8, figs. 3, 5, 11, 14. 1999  Cymaclymenia sp. – Korn, p. 170, pl. 4, fig. 6.</p><p>2002  Cymaclymenia pudica . – Becker et al., p. 171, pl. 4, figs. 4, 5.</p><p>Derivation of name: In honour of Volker Ebbighausen (1940–2011), for his contribution to the palaeontology of the Anti-Atlas of Morocco.</p><p>Holotype: Specimen MB.C.22621.1 (Ebbighausen and Korn 2009 Coll.); illustrated here in Fig. 11b.</p><p>Type locality and horizon: Madène el Mrakib (Anti-Atlas);  Procymaclymenia beds (late Famennian).</p><p>Material: 252 specimens with a maximum conch diameter of 45 mm.</p><p>Diagnosis: Species of  Procymaclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.28); whorl cross section compressed (ww / wh = 0.60). Conch shape in the intermediate stage (10 mm dm) thinly discoidal and subevolute (ww / dm = 0.30; uw / dm = 0.32). Umbilical wall steep in the adult stage, flanks subparallel, venter rounded or slightly flattened and separated from the flanks by a subangular margin. Ornament with very fine biconvex growth lines, steinkern without constrictions.</p><p>Discussion:  Procymaclymenia ebbighauseni differs from  P. inflata (Czarnocki, 1989) and  P. pudica (Czarnocki, 1989) from the Holy Cross Mountains in the smooth steinkern, which in the other two species displays strong constrictions. Furthermore, the other two species possess riblets around the umbilicus, which are very faint in  P. ebbighauseni .</p><p>The new species was utilised by Becker et al. (2002) as an index for the “  Cymaclymenia pudica Zone ”, which has a position between the “  Platyclymenia annulata Zone ” and the “  Sporadoceras orbiculare Zone ”. The authors provide a list of co-occurring species, predominantly platyclymeniids and prionoceratids. Recent bed-by-bed research, however, has demonstrated that  Procymaclymenia ebbighauseni occurs higher in the section than postulated by Becker et al. (2002); a co-occurrence of typical species of the  Platyclymenia annulata Zone and  P. ebbighauseni does not exist. In the section at Madène el Mrakib,  P. ebbighauseni has its lowest occurrences immediately below the oldest horizon with “  Sporadoceras orbiculare ”.</p></div>	https://treatment.plazi.org/id/4D1287FBCB3AFFDEFCD73297FB36FA9C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB3BFFD9FCD73374FD12F934.text	4D1287FBCB3BFFD9FCD73374FD12F934.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia Hyatt 1884	<div><p>Cymaclymenia Hyatt, 1884</p><p>Type species:  Clymenia striata Münster, 1843, p.11 (original designation).</p><p>Genus definition: Genus of the  Cymaclymeniidae with pointed, strongly asymmetric lateral lobe. Course of the growth-lines biconvex.</p><p>Discussion:  Cymaclymenia is one of the most species-rich Devonian ammonoid genera; Korn and Klug (2002) listed 40 species within the genus, of which several were regarded as synonymous. A further seven new species were added by Nikolaeva and Bogoslovsky (2005) to  Cymaclymenia, but three of these can be regarded as probably belonging to  Procymaclymenia, a genus ignored by these authors. This large amount of morphologically similar forms is an obstacle for a clear separation of species, of which only few have been described including the conch ontogeny. Furthermore, the precise stratigraphic occurrence is not known for many species for which, if at all, only the stage is known.</p><p>The material of  Cymaclymenia from Morocco and Algeria has traditionally (e.g. Petter, 1960; Korn, 1999; Becker et al., 2002) been assigned to species previously described from central Europe (e.g. Franconia, Rhenish Mountains). In fact there is some resemblance, but at the same time there are differences when well-preserved material is studied and compared. Generally it appears that the material from the Anti-Atlas has a weaker shell ornament when compared with the European species, while differences in conch geometry and suture lines are only minor. The differences in shell ornament are used here as a criterion for the separation of new species within the genus, giving the cymaclymeniid faunas from North Africa an exotic character containing endemic species.</p><p>A concept of largely endemic faunas has been used by Nikolaeva and Bogoslovsky (2005), who besides using names from central European species, named four new species from the South Urals and central Kazakhstan.</p></div>	https://treatment.plazi.org/id/4D1287FBCB3BFFD9FCD73374FD12F934	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB3CFFDBFF9830E4FAB6F8AB.text	4D1287FBCB3CFFDBFF9830E4FAB6F8AB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia subvexa Klein & Korn 2014	<div><p>Cymaclymenia subvexa n. sp.</p><p>Figures 13 and 14</p><p>1960  Cymaclymenia striata . – Petter, p. 47, pl. 7, figs. 16, 17, 19, pl. 8, figs. 1, 4, 13.</p><p>1999  Cymaclymenia cordata . – Korn, p. 170, pl. 4, fig. 5.</p><p>Derivation of name: After Lat. subvexus, -a, -um (adj.) = oblique, because of the shape of the umbilical wall.</p><p>Holotype: Specimen MB.C.22658 (Rücklin 2003 Coll.); illustrated here in Fig. 13a.</p><p>Type locality and horizon: Bou Ifarherioun 17 km south of Rissani;  Gonioclymenia Assemblage (late Famennian).</p><p>Material: 383 specimens with a maximum conch diameter of 50 mm.</p><p>Diagnosis: Species of  Cymaclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.30–0.35); whorl cross section weakly compressed (ww / wh = 0.65). Conch shape in the intermediate stage (10 mm dm) thinly discoidal and subevolute (ww / dm = 0.32; uw / dm = 0.32). Umbilical wall oblique in the adult stage, flanks moderately converging, venter narrowly rounded. Ornament with very fine biconvex growth lines and with weak riblets on the flank.</p><p>Discussion:  Cymaclymenia subvexa is one of the slender species of the genus. It differs from many of the other species in the presence of riblets on the inner flanks. Of the Uralian species,  C. decorata Nikolaeva and Bogoslovsky, 2005 has even stronger and sharper riblets and  C. crenata Nikolaeva and Bogoslovsky, 2005 has a rather blunt lateral lobe as well as a stronger biconvex course of the growth lines.  C. silesiaca (Renz, 1914) from Silesia possesses steinkern constrictions at the end of growth.</p><p>The new species resembles  Procymaclymenia ebbighauseni and  Cymaclymenia formosa in conch geometry and ontogeny.  P. ebbighauseni is easily separable by the suture line (blunt in  P. ebbighauseni, pointed in  C. subvexa), but the differences with  C. formosa are less obvious. The two species can best be separated by the form of the umbilical wall, which is oblique in  C. subvexa (with an inclination of about 45 ◦) but steep in  C. formosa .  C. serotina lacks the flank riblets of  C. subvexa .</p></div>	https://treatment.plazi.org/id/4D1287FBCB3CFFDBFF9830E4FAB6F8AB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB3FFFDAFF9834A6FC6BFAAC.text	4D1287FBCB3FFFDAFF9834A6FC6BFAAC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia formosa Klein & Korn 2014	<div><p>Cymaclymenia formosa n. sp.</p><p>Figures 15 and 16</p><p>1999  Cymaclymenia striata . – Korn, p. 170, pl. 4, fig. 1.</p><p>1999  Cymaclymenia costellata . – Korn, p. 170, pl. 4, fig. 2.</p><p>2002  Cymaclymenia involvens . – Becker et al., p. 165.</p><p>Derivation of name: After Lat. formosus, -a, -um (adj.) = pretty; because of the delicate ornament of the species.</p><p>Holotype: Specimen MB.C.22609.1 (Korn 1995 Coll.); illustrated here in Fig. 15a.</p><p>Type locality and horizon: Erfoud (Anti-Atlas), immediately east of the Muslim cemetery on the eastern side of the Ziz Valley; bed 49– 50 of Korn (1999),  Parawocklumeria paradoxa Assemblage (late Famennian).</p><p>Material: 267 specimens with a maximum conch diameter of 60 mm.</p><p>Diagnosis: Species of  Cymaclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.30–0.35); whorl cross section weakly compressed (ww / wh = 0.65). Conch shape in the intermediate stage (10 mm dm) thinly discoidal and subevolute (ww / dm = 0.35; uw / dm = 0.30–0.35). Umbilical wall steep in the adult stage, flanks weakly converging, venter rounded. Ornament with fine biconvex growth lines, without riblets.</p><p>Discussion: The new species closely resembles  C. striata (Münster, 1832), which has a similar conch geometry and ornament.  C. semistriata Münster (1832) is another similar and possibly separate species; it shows strong constrictions on the internal mould, which appear to be absent in  C. striata .  C. striata is characterised by very coarse, lamellose growth lines, which are arranged in equal distances of about 0.5 mm on the outer flanks (topotype specimen MB.C.4173 from Schübelhammer) (Fig. 17). In contrast the growth lines are much finer in  C. formosa and stand in distances of about 0.25 mm. The steinkern constrictions, characteristic of  C. semistriata, are absent in  C. formosa .</p><p>Another similar species is  C. costellata (Münster, 1832) (Fig. 18), but this species possesses riblets on the inner flanks. More differences can be seen in the ontogeny of the conch,  C. formosa shows a clear triphasic ontogeny of the ww / dm ratio with a very slender juvenile stage (ww / dm = 0.30–0.35 at 6 mm dm). The inner whorls are stouter in  C. costellata (ww / dm = 0.40–0.45 at 6 mm dm) (Fig. 19). Furthermore,  C. costellata shows adult modifications such as a slightly tabulated venter and a deep terminal steinkern constriction.</p><p>C. formosa differs from  C. subvexa from the Anti-Atlas in the nearly parallel flanks in the adult stage, which in  C. subvexa converge more strongly towards the narrow venter. Furthermore  C. subvexa has a more slender juvenile conch at 4 mm diameter (ww / dm ∼ 0.34 in  C. formosa but ∼ 0.30 in  C. subvexa). The best criterion for the separation of the species is the form of the umbilical wall, which in  C. formosa is steep, but oblique in  C. subvexa (about 45 ◦).  C. serotina differs from  C. formosa in the almost smooth shell surface.</p><p>C. subcompressa Nikolaeva and Bogoslovsky, 2005 and  C. pseudocompressa Nikolaeva and Bogoslovsky, 2005 have a similar shape, but the first species has an almost smooth shell and the second has lamellar growth lines, much coarser than in  C. formosa .</p></div>	https://treatment.plazi.org/id/4D1287FBCB3FFFDAFF9834A6FC6BFAAC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB3FFFC0FCD7331EFEB5F952.text	4D1287FBCB3FFFC0FCD7331EFEB5F952.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia lambidia Klein & Korn 2014	<div><p>Cymaclymenia lambidia n. sp.</p><p>Figures 20 and 21</p><p>1960  Cymaclymenia involvens . – Petter, p. 47, pl. 7, fig. 20, 21, 23, pl. 8, fig. 6, 8–10.</p><p>1999  Cymaclymenia involvens . – Korn, p. 170, pl. 4, fig. 3, 4.</p><p>2002  Cymaclymenia involvens . – Becker et al., p. 165, 173.</p><p>Derivation of name: After the geographic region Lambidia in the Ma’der Basin.</p><p>Holotype: Specimen MB.C.22632.1 (Korn 1998 Coll.); illustrated here in Fig. 20a.</p><p>Type locality and horizon: Madène el Mrakib; 0–5 m below Hangenberg Black Shale, probably  Parawocklumeria paradoxa Assemblage (late Famennian).</p><p>Material: 128 specimens with a maximum conch diameter of 65 mm.</p><p>Diagnosis: Species of  Cymaclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.35–0.40); whorl cross section weakly compressed (ww / wh = 0.80–1.00). Conch shape in the intermediate stage (10 mm dm) thickly discoidal and subevolute (ww / dm = 0.50; uw / dm = 0.30–0.35). Umbilical wall steep in the adult stage, flanks moderately converging, venter broadly rounded. Ornament with fine biconvex growth lines, without riblets.</p><p>Discussion:  Cymaclymenia lambidia belongs to the stouter species of the genus and is by this character separated from most of the other species such as the co-occurring  C. lambidia . Only few of the described species reach the adult ww / dm ratio of 0.35.</p><p>Specimens belonging to this new species have usually been assigned to  Cymaclymenia involvens Lange, 1929 . Indeed this species is very similar in conch shape (Fig. 22), and differences are mainly expressed in shell ornament. Two specimens from Wocklum are available from the type material of  C. involvens: (1) the smaller holotype MB.C.3695 (27 mm dm), which is fairly well preserved with a rather coarse shell ornament, and (2) the larger paratype   MB.C.3695 (42 mm dm), which is a poorly preserved, rather strongly corroded internal mould providing insight into the adult conch morphology. It is not certain that the two specimens belong to only one species. However the stratigraphic restriction of the type locality, in which almost exclusively the topmost Wocklum Limestone ( Wocklumeria denckmanni Zone) yields ammonoids, suggests that the material is conspecific. The most probable stratigraphic position of the topotypes allows for the designation of time-equivalent specimens for a more precise characterisation of the species  .</p><p>C. involvens differs from the other central European species of the genus in the stouter conch, which only in  C. nephroides Korn, 1981 is even wider. Like the other two very common species  C. striata (Münster, 1832) and  C. costellata (Münster, 1832), it possesses a rather coarse shell ornament with bundled growth lines and weak riblets around the umbilicus.</p><p>C. lambidia differs from the European and Uralian species in the much weaker ornament, which particularly in subadult specimens (about 20 mm conch diameter) appears to be absent and thus suggesting a smooth shell surface. Another difference of the new species from  C. involvens is the slightly stouter conch in the juvenile stage of 8 mm conch diameter (ww / dm = 0.45–0.50 in  C. lambidia; ww / dm = 0.53 in  C. involvens) (Fig. 23). This criterion, however, probably does not allow for a clear separation of the two species.</p><p>Becker et al. (2002, p. 165, 173) introduced a “  Cymaclymenia involvens Zone ” for specimens of this species. This zone should occur between two sandstone members near the top of the Late Devonian succession at Lambidia (Aguelmous, Ma’der Basin); the zone was placed above the “Hangenberg Black Shale event”. However, the authors did not recognise a major fault in the outcrop, which causes duplication of the higher beds; the so-called  Cymaclymenia involvens Zone is thus not justified. The beds assigned to this zone (unit R in figure 4 of Becker et al., 2002) are a repetition of unit J1 (i.e. a rock unit below the “Hangenberg Black Shale event”).</p></div>	https://treatment.plazi.org/id/4D1287FBCB3FFFC0FCD7331EFEB5F952	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB25FFC3FCD73270FD58FA19.text	4D1287FBCB25FFC3FCD73270FD58FA19.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia serotina Klein & Korn 2014	<div><p>Cymaclymenia serotina n. sp.</p><p>Figure 24</p><p>Derivation of name: After Lat. serotinus, -a, -um (adj.) = delayed; because of the late stratigraphic occurrence.</p><p>Holotype: Specimen MB.C.22605.1 (Korn 1995 Coll.); illustrated here in Fig. 24a.</p><p>Type locality and horizon: Erfoud (Anti-Atlas), immediately east of the Muslim cemetery on the eastern side of the Ziz Valley; bed 55 of Korn (1999),  Parawocklumeria paradoxa Assemblage (late Famennian).</p><p>Material: 10 specimens with a maximum conch diameter of 45 mm.</p><p>Diagnosis: Species of  Cymaclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.30); whorl cross section weakly compressed (ww / wh = 0.65). Conch shape in the intermediate stage (10 mm dm) thinly discoidal and subinvolute (ww / dm = 0.33; uw / dm = 0.25–0.30). Umbilical wall oblique in the adult stage, flanks moderately converging, venter rounded. Ornament with almost smooth and extremely fine biconvex growth lines, without riblets.</p><p>Discussion:  C. serotina differs from nearly all other species of the genus in the very faint conch ornament. The species differs from  Cymaclymenia formosa and the other Moroccan species with slender conchs by the extremely fine ornament, which consists of very delicate growth lines. In this respect it is similar to  C. lambidia, but this species has a stouter conch.</p></div>	https://treatment.plazi.org/id/4D1287FBCB25FFC3FCD73270FD58FA19	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB26FFC2FF9833E5FDA1FB59.text	4D1287FBCB26FFC2FF9833E5FDA1FB59.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia aulax Klein & Korn 2014	<div><p>Cymaclymenia aulax n. sp.</p><p>Figure 25</p><p>Derivation of name: After Lat.  aulax (noun) = furrow; because of the steinkern constrictions.</p><p>Holotype: Specimen MB.C.22651 (Ebbighausen 2008 Coll.); illustrated here in Fig. 25a.</p><p>Type locality and horizon: Aguelmous (Anti-Atlas); probably  Kalloclymenia Assemblage (late Famennian).</p><p>Material: 3 specimens with a maximum conch diameter of 60 mm.</p><p>Diagnosis: Species of  Cymaclymenia with thinly discoidal and subevolute conch in the adult stage (ww / dm = 0.30; uw / dm = 0.30); whorl cross section weakly compressed (ww / wh = 0.65). Umbilical wall steep in the adult stage, flanks weakly converging, venter rounded. Ornament with rather coarse biconvex growth lines, without riblets; steinkern with curved constrictions on the flanks.</p><p>Discussion:  C. aulax belongs to the few species of the genus with coarse steinkern constrictions. Münster (1832) described the species “  Planulites semistriatus ” from Franconia, which also belongs to  Cymaclymenia . This species also possesses steinkern constrictions on the flanks and venter.  C. semistrata has a very slender conch (ww / dm = 0.26 at 30 mm dm) in contrast to the stouter  C. aulax (ww / dm = 0.32 at a comparable diameter).  C. sudetica (Renz, 1914) from Silesia possesses steinkern constrictions, but has a stouter conch shape.</p><p>The new species differs from the other species of  Cymaclymenia from the Anti-Atlas by the presence of conspicuous steinkern constrictions.  C. formosa is the most similar of the other species, but  C. aulax also differs in the increasing umbilical width index in the adult stage.</p></div>	https://treatment.plazi.org/id/4D1287FBCB26FFC2FF9833E5FDA1FB59	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB27FFC2FF983325FCCBFA8C.text	4D1287FBCB27FFC2FF983325FCCBFA8C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cymaclymenia carnata Klein & Korn 2014	<div><p>Cymaclymenia carnata n. sp.</p><p>Figure 26</p><p>Derivation of name: After Lat. carnatus, -a, -um (adj.) = thick; because of the stout conch form.</p><p>Holotype: Specimen MB.C.22654 (Kullmann Coll.); illustrated here in Fig. 26a, b.</p><p>Type locality and horizon: Aguelmous; probably  Kalloclymenia Assemblage (late Famennian).</p><p>Material: 2 specimens with a maximum conch diameter of 55 mm.</p><p>Diagnosis: Species of  Cymaclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.42); whorl cross section weakly compressed (ww / wh = 0.90). Conch shape in the intermediate stage (10 mm dm) thinly pachyconic and subinvolute (ww / dm = 0.62; uw / dm = 0.28). Umbilical wall steep in the adult stage, flanks moderately converging, venter broadly rounded. Ornament with fine biconvex growth lines, without riblets.</p><p>Discussion:  Cymaclymenia carnata has, together with  C. nephroides, the stoutest conch of all  Cymaclymenia species. The two species can be separated by the umbilical width;  C. carnata is more involute (ww / dm = 0.20) than  C. nephroides (uw / dm = 0.25).</p></div>	https://treatment.plazi.org/id/4D1287FBCB27FFC2FF983325FCCBFA8C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB27FFC2FCD73370FBD7F91B.text	4D1287FBCB27FFC2FCD73370FBD7F91B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Postclymenia Schmidt 1924	<div><p>Postclymenia Schmidt, 1924</p><p>Type species:  Postclymenia evoluta Schmidt, 1924, p. 154 (by monotypy).</p><p>Genus definition: Genus of the  Cymaclymeniidae with thinly discoidal, weakly ornamented conch. Suture line with large, extremely asymmetric and ventrally elongated lateral lobe. Umbilical lobe widely rounded.</p><p>The genus consists only of two species: the type species and a new species described here. For a discussion of the genus, see Korn et al. (2004) and Korn et al. (2007).</p></div>	https://treatment.plazi.org/id/4D1287FBCB27FFC2FCD73370FBD7F91B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
4D1287FBCB27FFCCFCD730E5FD26FEE0.text	4D1287FBCB27FFCCFCD730E5FD26FEE0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Postclymenia calceola Klein & Korn 2014	<div><p>Postclymenia calceola n. sp.</p><p>Figures 27 and 28</p><p>2004  Postclymenia evoluta . – Korn et al., p. 315, fig. 6A–D, 8. 2007  Postclymenia evoluta . – Korn et al., p. 137, fig. 8.</p><p>Derivation of name: After Lat. calceolus (noun) = little boot; because of the shape of the lateral lobe.</p><p>Holotype: Specimen MB.C.22662.1 (Ebbighausen 2005 Coll.); illustrated here in Fig. 27b.</p><p>Type locality and horizon: Lalla Mimouna (Anti-Atlas); latest Famennian.</p><p>Material: 119 specimens with a maximum phragmocone diameter of 60 mm.</p><p>Diagnosis: Species of  Postclymenia with thinly discoidal conch in the adult stage (ww / dm = 0.25–0.30); whorl cross section weakly compressed (ww / wh = 0.70). Suture line with strongly asymmetric, pouched boot-shaped lateral lobe.</p><p>Discussion:  Postclymenia evoluta has a very similar or nearly identical conch but differs from the new species in the suture line, which possesses a smaller adventive lobe with a vertical ventral side of the adventive lobe, as figured by Schmidt (1924, pl. 8, fig. 19) and Price and Korn (1989, fig. 11A). For a detailed description and discussion of the new species, see Korn et al. (2004) and Korn et al. (2007).</p><p>Acknowledgements. We are indebted to the Moroccan authorities for their permission for us to undertake field work. We greatly acknowledge the late Volker Ebbighausen (deceased 2011), Raimund Feist (Montpellier), Jürgen Kullmann (Tübingen), Martin Rücklin (Leiden), Jobst Wendt (Tübingen) and Dieter Weyer (Berlin) for providing specimens. Evelin Stenzel (Berlin) cleaned the specimens from the matrix. Jonas Jahn (Berlin) is acknowledged for taking the photographs, and Sonny A. Walton (Potsdam) revised the language of the manuscript. We acknowledge the reviews of the article by Jürgen Bockwinkel (Leverkusen), Claude Monnet (Lille) and Alan L. Titus (Kanab, Utah).</p><p>Edited by: F. Witzmann</p><p>Reviewed by: J. Bockwinkel, C. Monnet, and A. Titus</p></div>	https://treatment.plazi.org/id/4D1287FBCB27FFCCFCD730E5FD26FEE0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Klein, C.;Korn, D.	Klein, C., Korn, D. (2014): A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian). Fossil Record 17 (1): 1-32, DOI: 10.5194/fr-17-1-2014, URL: http://dx.doi.org/10.5194/fr-17-1-2014
