Sphenacodontoidea

Sphenacodontoids; Temporal range: Late Carboniferous-Recent, 300–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Fossilized skull of two sphenacodontoids : Clelandina (Therapsida, Gorgonopsidae) and a Dimetrodon (Sphenacodontidae).
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Sphenacomorpha
Clade:	Sphenacodontia
Clade:	Pantherapsida
Clade:	Sphenacodontoidea
Clades
	†Shashajaia; †Sphenacodontidae; Therapsida;

Sphenacodontoidea is Superfamily of the Pelycosaurs. Which Includes Sphenacodontids and Edaphosaurids.

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