Stereognathus

Stereognathus; Temporal range: Bathonian-Barremian?,
	The postcanine tooth of Stereognathus ooliticus, from Owen 1857.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	Cynodontia
Family:	†Tritylodontidae
Genus:	†Stereognathus; Charlesworth, 1854
Type species
	Stereognathus ooliticus; Charlesworth, 1854
Potential species
	S. chuannanensis (He & Cai, 1984; originally Polistodon); S. kolossovi (Lopatin & Agadjanian, 2008; originally Xenocretosuchus); S. kuwajimaensis (Matsuoka et al., 2016; originally Montirictus); S. sibiricus (Tatarinov & Mashenko, 1999; originally Xenocretosuchus);
Synonyms
	S. hebridicus? Waldman & Savage, 1972;

Stereognathus is an extinct genus of tritylodontid cynodonts from the Middle Jurassic of the United Kingdom. There is a single named species: S. ooliticus, named after the Great Oolite deposits of England. A second species, S. hebridicus, was named after the Hebrides in Scotland, where it was found; it was synonymized with S. ooliticus in 2017.

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