Biology:Cynosphenodon
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Short description: Extinct genus of reptiles
Cynosphenodon | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Rhynchocephalia |
Family: | Sphenodontidae |
Genus: | Cynosphenodon Reynoso, 1996 |
Type species | |
†Cynosphenodon huizachalensis Reynoso, 1996
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Cynosphenodon (/ˌsaɪnəˈsfɛnədɒn/ SY-nə-SFEN-ə-don; "Dog Sphenodontian") is an extinct genus of rhynchocephalian in the family Sphenodontidae from the Middle Jurassic La Boca Formation of Tamaulipas, Mexico. It is known from a largely complete lower jaw and fragments of the upper jaw. It is suggested to be among the closest known relatives of the tuatara, with both being placed in the Sphenodontinae,[1] which is supported by among other characters, the growth pattern of the teeth.[2]
Cladogram after Simoes et al. 2022.[3]
Sphenodontia |
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Note: This topic belongs to "Paleontology" portal
References
- ↑ Reynoso, Victor-Hugo (1996-06-05). "A Middle Jurassic Sphenodon-like sphenodontian (Diapsida: Lepidosauria) from Huizachal Canyon, Tamaulipas, Mexico" (in en). Journal of Vertebrate Paleontology 16 (2): 210–221. doi:10.1080/02724634.1996.10011309. ISSN 0272-4634. https://www.researchgate.net/publication/254313647.
- ↑ Reynoso, V. H. (2003). Growth patterns and ontogenetic variation of the teeth and jaws of the Middle Jurassic sphenodontian Cynosphenodon huizachalensis (Reptilia: Rhynchocephalia). Canadian Journal of Earth Sciences 40(4), 609–619
- ↑ Simões, Tiago R.; Kinney-Broderick, Grace; Pierce, Stephanie E. (2022-03-03). "An exceptionally preserved Sphenodon-like sphenodontian reveals deep time conservation of the tuatara skeleton and ontogeny" (in en). Communications Biology 5 (1): 1–19. doi:10.1038/s42003-022-03144-y. ISSN 2399-3642. PMID 35241764.
Wikidata ☰ Q5199996 entry
Original source: https://en.wikipedia.org/wiki/Cynosphenodon.
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