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Sinognathus Temporal range: Anisian, 247.2–242.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	Cynodontia
Family:	†Trirachodontidae
Subfamily:	†Sinognathinae
Genus:	†Sinognathus Young, 1959
Species:	†S. gracilis
Binomial name
†Sinognathus gracilis Young, 1959

Sinognathus is an extinct genus of gomphodont cynodonts from the Middle Triassic Ermaying Formation of China. Its type and only species is Sinognathus gracilis, which was named in 1959 by the Chinese palaeontologist C. C. Young.

References

1. Young, C. C. (1959). "Note on the first cynodont from the Sinokannemeyeria faunas in Shansi, China". Vertebrata PalAsiatica. 3 (3): 124–132.
2. "Fossilworks: Sinognathus". fossilworks.org. Retrieved 17 December 2021.

v t e Cynognathia
Kingdom: Animalia Phylum: Chordata Clade: Synapsida Clade: Therapsida Clade: Cynodontia Clade: Eucynodontia Synapsida see Synapsida Cynodontia see Cynodontia Cynognathia see below↓ Cynognathia
Cynognathia Cynognathus Gomphodontia Gornogomphodon Diademodontidae Diademodon Titanogomphodon Trirachodontidae Cricodon Guttigomphus Impidens Langbergia Trirachodon Sinognathinae Beishanodon Sinognathus Traversodontidae Andescynodon Colbertosaurus Etjoia Luangwa Mandagomphodon Nanogomphodon Pascualgnathus Scalenodon Theropsodon Traversodon Massetognathinae Dadadon? Massetognathus Santacruzodon Arctotraversodontinae Arctotraversodon Boreogomphodon Habayia Maubeugia Microscalenodon Plinthogomphodon Rosieria Gomphodontosuchinae Exaeretodon Gomphodontosuchus Menadon Protuberum Ruberodon Scalenodontoides Siriusgnathus
Category

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• Cynognathians
• Anisian life
• Middle Triassic synapsids
• Triassic China
• Fossils of China
• Fossil taxa described in 1959
• Taxa named by Yang Zhongjian
• Cynodont stubs