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Abstract
The nearly complete gorgonopsian specimen GPIT/RE/7113, holotype ofScymnognathus (laterAelurognathus?)parringtoni, is redescribed. Comparisons with the type species ofAelurognathus (A.tigriceps) reveal that GPIT/RE/7113 is not referable to that genus. GPIT/RE/7113 shares a number of features with the Russian gorgonopsianSauroctonusprogressus, including a weakly flared zygomatic arch, interorbital and intertemporal regions of nearly equal width, broad nasal, naso-frontal suture situated anterior to the orbit and somewhat bow-shaped, prefrontal long and extremely low, terminating in a narrow anterior process, narrow vomer, parietal contribution to the occipital rim, and somewhat sloping dentary symphysis. Based on these characters, GPIT/RE/7113 is referred toSauroctonus asS.parringtoni comb. nov. This represents the first instance of commonality in a gorgonopsian genus between the Eastern European and East African therapsid faunas.
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Acknowledgments
Sincere thanks go to the following who have supported this study by providing access to specimens in their care, discussion and assistance: Jenny Clack (Cambridge), Roger Smith (Cape Town), Bruce Rubidge and Mike Raath (Johannesburg), Carl Mehling (New York), Tom Kemp (Oxford), Denise Sigogneau-Russell (Paris), and Wolf-Ernst Reif and Frank Westphal (Tübingen). Financial support of the Landesgraduiertenförderung Baden-Württemberg is gratefully acknowledged.
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Staatliches Museum für Naturkunde Karlsruhe, Erbprinzenstraße 13, 76133, Karlsruhe, Germany
Eva V. I. Gebauer
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Correspondence toEva V. I. Gebauer.
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Division of Paleontology and Richard Gilder, Graduate School American Museum of Natural History, New York, New York, USA
Christian F. Kammerer
Department of Geology, Field Museum, Chicago, Illinois, USA
Kenneth D. Angielczyk
Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung an der Humboldt-Universität zu Berlin, Berlin, Germany
Jörg Fröbisch
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Gebauer, E.V.I. (2014). Re-assessment of the Taxonomic Position of the Specimen GPIT/RE/7113 (Sauroctonus parringtoni comb. nov., Gorgonopsia). In: Kammerer, C., Angielczyk, K., Fröbisch, J. (eds) Early Evolutionary History of the Synapsida. Vertebrate Paleobiology and Paleoanthropology. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6841-3_12
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