Rhipaeosaurus

Rhipaeosaurus is an extinct genus of nycteroleterid parareptile known from an articulated skeleton from the mid Middle Permian of European Russia. It contained a single species, Rhipaeosaurus tricuspidens. A bayesian analysis suggests that it is more closely related to pareiasaurs than to the other nycteroleterids, due to skull and tooth features. For this reason, "Nycteroleteridae" may be a grade rather than a clade, unless redefined to exclude Rhipaeosaurus.

Rhipaeosaurus
Temporal range: Middle Permian,
Life restoration (with highly speculative skull)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Parareptilia
Order: Procolophonomorpha
Family: Nycteroleteridae
Genus: Rhipaeosaurus
Efremov, 1940
Type species
Rhipaeosaurus tricuspidens
Efremov, 1940
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