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Cynosphenodon

Cynosphenodon
Temporal range: Middle Jurassic
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Lepidosauria
Order: Sphenodontia
Family: Sphenodontidae
Subfamily: Sphenodontinae
Tribe: Sphenodontini
Genus: Cynosphenodon
Species
  • C. huizachalensis † (type) Reynoso, 1996

Cynosphenodon (/ˌsnəˈsfɛnədɒn/ SY-nə-SFEN-ə-don; "Dog Sphenodontian") is an extinct genus of the family Sphenodontidae from the Middle Jurassic La Boca Formation of Tamaulipas, Mexico. Growth patterns in the teeth of Cynosphenodon suggest its close relationship with the modern tuatara.


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