Rejasisuch

Rejasisuch is a genus of extinct reptile known from fragmentary fossils recovered from Late Triassic deposits in southeastern Europe. The genus is monotypic, containing the type species Rejasisuch primus.

Fossils were discovered during salvage excavations in 2006 by a field team led by paleontologist Elena Mirov, with the holotype specimen SMF 2012-04 comprising a partial skull and several postcranial elements.

The name Rejasisuch combines the local toponym Reja with the Greek saukhos meaning lizard. The species epithet primus signifies its status as the first described member of the genus.

Rejasisuch is characterized by a relatively long snout, dentition composed of sharp, conical teeth, and stout limbs. Estimated total length is around 1.5–2.0 meters, with a skull about 25–30 centimeters long.

Phylogenetic analyses place Rejasisuch within Archosauriformes, as a basal member near the divergence of phytosaurs and other archosauriform lineages. Because the material is fragmentary, its precise relationships remain tentative.

Paleoecology suggests a freshwater to estuarine habitat, with a diet that included fish and small amphibians. The animal would have coexisted with various Triassic reptiles, including early saurian and crocodile-line relatives, in riverine environments.