Datheosaurus

Datheosaurus Temporal range: Late Carboniferous - Early Permian, 299–296.4 Ma PreЄ Є O S D C P T J K Pg N ↓
Skeleton
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	†Caseasauria
Family:	†Caseidae
Genus:	†Datheosaurus Schroeder, 1905
Species
†D. macrourus Schroeder, 1905 (type)

Datheosaurus is an extinct genus of caseasaur from Poland. It was at least 1.5 metres (5 ft) in length. It lived from Latest Carboniferous to Early Permian.

It was originally described in 1905 on a basis of a specimen from late Carboniferous deposits in Poland. It was later considered a synonym of Haptodus by several authors, but subsequent examination has found it be a caseid rather a sphenacodont. This was confirmed by cladistic analysis, which recovered Datheosaurus as a basal caseid