Ruthenosaurus
| Ruthenosaurus Temporal range: Cisuralian (late Artinskian), ~  | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Synapsida | 
| Clade: | †Caseasauria | 
| Family: | †Caseidae | 
| Genus: | †Ruthenosaurus Reisz et al., 2011 | 
| Species | |
Ruthenosaurus is an extinct genus of caseid synapsids that lived in what is now Southern France during the Early Permian (late Artinskian) about 285 million years ago. It is known from the holotype MNHN.F.MCL-1 an articulated partial postcranial skeleton. It was collected by D. Sigogneau-Russell and D. Russell in 1970 in the upper part of the M2 Member, Grès Rouge Group, in the Rodez Basin, near the village of Valady (département of Aveyron), in Occitanie Region. It was first named by Robert R. Reisz, Hillary C. Maddin, Jörg Fröbisch and Jocelyn Falconnet in 2011, and the type species is Ruthenosaurus russellorum.