Thrinaxodontidae
Thrinaxodontidae Temporal range: Middle Permian- Early Triassic, 261–247 Ma | |
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Skull and neck vertebrae of Thrinaxodon liorhinus in CosmoCaixa Barcelona | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Synapsida |
Order: | Therapsida |
Suborder: | Cynodontia |
Clade: | Epicynodontia |
Family: | †Thrinaxodontidae Watson and Romer, 1956 |
Thrinaxodontidae is an extinct family of cynodonts that includes the genera Thrinaxodon, Nanictosaurus, Nanocynodon, and Novocynodon, and possibly Bolotridon and Platycraniellus.[1] All thrinaxodontids share a bony secondary palate. Thrinaxodontids are basal members of the cynodont clade Epicynodontia. Some studies consider the family a paraphyletic group, representing an evolutionary grade of basal epicynodonts rather than an actual clade.[2]
References
- ↑ Ivakhnenko, M. F. (2012). "Permian Cynodontia (Theromorpha) of Eastern Europe". Paleontological Journal. 46 (2): 199–207. doi:10.1134/S0031030112020062.
- ↑ Abdala, F. (2007). "Redescription of Platycraniellus elegans (Therapsida, Cynodontia) from the Lower Triassic of South Africa, and the Cladistic Relationships of Eutheriodonts". Palaeontology. 50 (3): 591–618. doi:10.1111/j.1475-4983.2007.00646.x.
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