Stereognathus

Stereognathus
Temporal range: Bathonian-Barremian?, 167.7–165.7 Ma
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The postcanine tooth of Stereognathus ooliticus, from Owen 1857.
Scientific classification Edit this 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.[1] 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.[2]

  1. ^ Fossilworks. "Stereognathus." Retrieved from
  2. ^ Panciroli, E.; Walsh, S.; Fraser, N.C.; Brusatte, S.L.; Corfe, I. (2017). "A reassessment of the postcanine dentition and systematics of the tritylodontid Stereognathus (Cynodontia, Tritylodontidae, Mammaliamorpha), from the Middle Jurassic of the United Kingdom". Journal of Vertebrate Paleontology. 37 (5): e1351448. doi:10.1080/02724634.2017.1351448. hdl:20.500.11820/b140e841-1ad5-4cbe-aad7-7bb588f9f0c1.