Cynosphenodon
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Cynosphenodon Temporal range: Middle Jurassic |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | Lepidosauria |
| Order: | Sphenodontia |
| Family: | Sphenodontidae |
| Subfamily: | Sphenodontinae |
| Tribe: | Sphenodontini |
| Genus: | Cynosphenodon † |
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Cynosphenodon (/ˌsaɪnəˈsfɛnədɒn/ 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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