Sarmatosuchus is an extinct genus of archosaurin reptile found in sediments of early Triassic

Triassic

The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...

 age and know from a single species Sarmatosuchus otschevi. The holotype

Holotype

A holotype is a single physical example of an organism, known to have been used when the species was formally described. It is either the single such physical example or one of several such, but explicitly designated as the holotype...

 and only specimen was found in litified river deposits of the Donguz Formation exposed near the Berdyanka River, Orenburg region

Orenburg

Orenburg is a city on the Ural River and the administrative center of Orenburg Oblast, Russia. It lies southeast of Moscow, very close to the border with Kazakhstan. Population: 546,987 ; 549,361 ; Highest point: 154.4 m...

, Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. The genus was originally included in the extinct family Proterosuchidae

Proterosuchidae

Proterosuchidae is an early, possibly paraphyletic, assemblage of basal archosauriformes whose fossils are known from the Latest Permian of Russia and the Early Triassic of southern Africa, Russia, China, Australia, and Antarctica...

. However later analysis by David Gower and Andrei Sennikov, the describing author, has removed it from the Proterosuchidae and designated it a basal archosaur.