Dinosaurs

Inostrancevia Alexandri from Sokolki, Northern Russia. Arizona Natural History Museum.

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Inostrancevia Alexandri from Sokolki, Northern Russia. Arizona Natural History Museum.

Inostrancevia is a genus of extinct, carnivorous therapsid, containing the largest members of the family Gorgonopsidae, predators characterized by long, saber-tooth-like canines. It lived during the Upper Tatarian stage, Vyatskian Horizon of Russia, corresponding to the Wuchiapingian stage of the Late Permian period of the ICS, dating from approximately 260 to 254 Million Years Ago. It was found in the Sokolki Assemblage in Arkhangelsk Oblast and is known from several skulls and two almost complete skeletons. The species in Inostrancevia were the largest gorgonopsids known, with total body lengths reaching 11 ft 6 in and long, narrow skulls up to 24 in long.
Inostrancevia_ANHM130902 © Don Tibbits

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