Silphedosuchus

Silphedosuchus is an extinct genus of therocephalian therapsids from the Early Triassic of Russia. It is a member of the family Ericiolacertidae, along with the genus Ericiolacerta from South Africa and Antarctica. The type species Silphedosuchus orenburgensis was described in 1977 on the basis of a single holotype skull from Orenburg Oblast.

Silphedosuchus was found in the Rassypnaya locality of Orenburg Oblast, dating back to the Olenekian stage of the Early Triassic. It was found in a fine-grained sandstone that contains few other vertebrates. This layer was deposited in a large floodplain that covered much of European Russia during the Early Triassic. At the Rassypnaya locality, a lens of coarser sand, presumably deposited by an ancient river, cuts through the finer-grained sandstone. This deposit contains many tetrapods such as temnospondyls and archosauromorphs, but the fossils are part of a different faunal assemblage.