Mystriosuchus, FRAAS, 1896

Butler, Richard J., Jones, Andrew S., Buffetaut, Eric, Mandl, Gerhard W., Scheyer, Torsten M. & Schultz, Ortwin, 2019, Description and phylogenetic placement of a new marine species of phytosaur (Archosauriformes: Phytosauria) from the Late Triassic of Austria, Zoological Journal of the Linnean Society 187, pp. 198-228 : 204-205

publication ID	B34CF6B-99CD-4DC3-AB71-00A741EB0A1B
publication LSID	lsid:zoobank.org:pub:B34CF6B-99CD-4DC3-AB71-00A741EB0A1B
persistent identifier	https://treatment.plazi.org/id/3E1FB224-1749-D521-1CF6-F9CD31496EA5
treatment provided by	Plazi
scientific name	Mystriosuchus
status

Treatment

MYSTRIOSUCHUS FRAAS, 1896

Type species: Mystriosuchus planirostris ( Meyer, 1863) .

R e f e r r e d s p e c i e s: M y s t r i o s u c h u s w e s t p h a l i H u n g e r b ü h l e r & H u n t, 2 0 0 0; M y s t r i o s u c h u s steinbergeri sp. nov.

Diagnosis: Diagnosed on the basis of the following combination of characters (* indicates characters that can be confirmed as present in Mystriosuchus steinbergeri sp. nov.): *interpremaxillary fossa reduced to a slit in the anterior part of the premaxilla; deep sculpture of the skull roof and narial region; *interorbital–narial area dorsally curved in crosssection; * posterior process of the squamosal strongly reduced in anteroposterior length; post-temporal fenestra strongly reduced (modified from Hungerbühler 2002; see ‘Phylogenetic analysis’ section above).

Distribution: Upper Triassic of central Europe. Mystriosuchus planirostris and M. westphali are known from the middle Stubensandstein, Löwenstein Formation of the Middle Keuper, Baden-Württemberg, south-west Germany. Mystriosuchus steinbergeri sp. nov. is known from the Dachsteinkalk of Styria, central Austria. Specimens from the Calcare di Zorzino and Argillite di Rivia di Solto of northern Italy have been referred to M. planirostris ( Renesto & Paganoni, 1998; Gozzi & Renesto, 2003) and cf. Mystriosuchus ( Renesto, 2008) , but the species-level affinities of this material require reinvestigation in light of the referral of the Austrian Mystriosuchus material to a new species. The middle Stubensandstein and Calcare di Zorzino are of middle–late Norian (Alaunian– Sevatian) age ( Kozur & Bachmann, 2005; Renesto, 2006) and the age of the Dachsteinkalk material may be broadly similar (middle Norian; see above). Mystriosuchus may also be known from a specimen ( MB.R. 2747) from the lower Exter Formation near Salzgitter, Niedersachsen, Germany ( Huene, 1923; Jones & Butler, 2018; see below), but a redescription and re-examination of the taxonomy of this specimen is needed to confirm this. Kimmig & Arp (2010) referred fragmentary phytosaur material from the Arnstadt Formation near Göttingen, Niedersachsen, Germany, to Mystriosuchus planirostris , but provided little evidence to support this hypothesis. The material described by Kimmig & Arp (2010) is here considered Phytosauria indet.