Inostrancevia

Inostrancevia is an extinct genus of large predatory gorgonopsians known from Late Permian deposits in what is now Russia. Its members had elongated skulls and prominent saber-like canine teeth.

Gorgonopsia: Gorgonopsia is an extinct group of predatory therapsids distinguished by large skulls and elongated canine teeth. Inostrancevia is among the largest and best-known members of this group.
Gorgonopsian skull: A gorgonopsian skull is the elongated, powerful skull of a member of Gorgonopsia. Inostrancevia's skull housed enlarged canines and strong jaw muscles.
Vladimir Amalitsky: Vladimir Amalitsky was a Russian geologist and paleontologist known for excavating Permian fossils near the Northern Dvina River. His excavations yielded fossils that became central to the study of Inostrancevia.
Inostrancevia latifrons: Inostrancevia latifrons is a species assigned to the genus Inostrancevia from Late Permian Russia. Its fossils broaden the known variation within the genus.
Therapsida: Therapsida is a major group of synapsids that includes mammals and their extinct relatives. Gorgonopsians, including Inostrancevia, belong to this broader synapsid lineage.
Canine tooth: A canine tooth is a pointed tooth positioned near the front of a mammal or mammal-relative's jaw. Its enlarged canines were the most conspicuous weapons in Inostrancevia's jaws.
Sokolki: Sokolki is a fossil locality on the Northern Dvina River in Arkhangelsk Oblast, Russia. The locality produced important specimens of Inostrancevia.
Gorgonops: Gorgonops is an extinct genus of gorgonopsian therapsid known from Late Permian Africa. It provides a geographically distant comparison with another large saber-toothed gorgonopsian.
Synapsida: Synapsida is the amniote lineage that includes mammals and their extinct relatives. This evolutionary placement distinguishes Inostrancevia from reptiles such as dinosaurs.
Predation: Predation is an ecological interaction in which one organism captures and consumes another. Inostrancevia was a large predator in Late Permian ecosystems.

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Saber-toothed predatorBroader topic: It demonstrates that a saber-toothed predatory form predates mammals.