Yikezhaogia
| Yikezhaogia Temporal range: Early Triassic
| |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | †Therocephalia |
| Superfamily: | †Baurioidea |
| Genus: | †Yikezhaogia Li, 1984 |
| Type species | |
| †Yikezhaogia megafenestrala Li, 1984
| |
Yikezhaogia is an extinct genus of therocephalian therapsids from the Early Triassic of Inner Mongolia (China).[1][2] It is known from a single fragmentary skull and associated postcranial bones representing the species Yikezhaogia megafenestrala. It is identifiable as a therocephalian by its thin postorbital bar behind the eye socket, its elongated temporal opening behind the bar, and a thin lower jaw with a low coronoid process. Large tooth sockets in the upper jaw indicate that Yikezhaogia had large caniniform teeth. The teeth of the lower jaw are blunt-tipped and cylindrical.[3] Although its exact position among therocephalians is uncertain, Yikezhaogia is probably a basal member of the group Baurioidea.[2]
References
- ^ Li, Yuhe (1984). "On a New Scaloposaurid from Inner Mongolia" (PDF). Vertebrata PalAsiatica. 22 (1): 21–28.
- ^ a b Abdala, F.; Rubidge, B. S.; Van Den Heever, J. (2008). "The Oldest Therocephalians (Therapsida, Eutheriodontia) and the Early Diversification of Therapsida". Palaeontology. 51 (4): 1011. doi:10.1111/j.1475-4983.2008.00784.x.
- ^ Sun, A. (1991). "A review of Chinese therocephalian reptiles" (PDF). Vertebrata PalAsiatica. 29 (2): 85–94.
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