A new record of Procynosuchus delaharpeae (Therapsida: Cynodontia) from the Upper Permian Usili Formation, Tanzania

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dc.contributor.authorWeide, D. Marie
dc.contributor.authorSidor, Christian A.
dc.contributor.authorAngielczyk, Kenneth D.
dc.contributor.authorSmith, Roger M.H.
dc.date.accessioned2014-02-18T07:38:37Z
dc.date.available2014-02-18T07:38:37Z
dc.date.issued2009-12
dc.description.abstractProcynosuchus, the best-known Permian cynodont, has a remarkably broad geographic range, with records stretching from southern Africa to Europe. Fossils of Procynosuchus are most common in the Upper Permian Dicynodon Assemblage Zone of South Africa, but also occur in coeval East African rocks. Currently, there is one documented occurrence from the Madumabisa Mudstone Formation of Zambia, and two specimens from the Usili (=Kawinga) Formation of Tanzania. The Tanzanian specimens include a poorly preserved, incomplete skull and a partial cranium originally attributed to Parathrinaxodon proops. The latter is now considered a subjective junior synonym of Procynosuchus delaharpeae. Here we report on a new specimen collected in 2007 near the base of Kingori Mountain in Tanzania. It preserves the postorbital region of the skull and the posterior portions of both lower jaws, each containing several intact teeth. A well-preserved postcanine tooth exhibits the dental hallmarks of Procynosuchus and permits unambiguous referral to this taxon. Recent fieldwork corroborates previous suggestions that the Usili tetrapod fauna includes representatives of the Tropidostoma, Cistecephalus and Dicynodon assemblage zones of South Africa. Moreover, the presence of several endemic Usili taxa (e.g. Katumbia, Kawingasaurus, Peltobatrachus), suggests that a straightforward correlation between the Usili tetrapod fauna and a particular assemblage zone from the Beaufort Group may not be possible.en_ZA
dc.identifier.issn0078-8554
dc.identifier.urihttp://hdl.handle.net10539/13808
dc.language.isoenen_ZA
dc.publisherBernard Price Institute for Palaeontological Research, University of the Witwatersranden_ZA
dc.subjectProcynosuchusen_ZA
dc.subjectCynodontiaen_ZA
dc.subjectPermianen_ZA
dc.subjectTanzaniaen_ZA
dc.subjectUsili Formationen_ZA
dc.subjectSongea Groupen_ZA
dc.subjectRuhuhu Basinen_ZA
dc.titleA new record of Procynosuchus delaharpeae (Therapsida: Cynodontia) from the Upper Permian Usili Formation, Tanzaniaen_ZA
dc.typeArticleen_ZA
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Volume 44 December 2009