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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