Biology:Yikezhaogia
| Yikezhaogia Temporal range: Early Triassic
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | †Therocephalia |
| Superfamily: | †Baurioidea |
| Genus: | †Yikezhaogia Li, 1984 |
| Type species | |
| †Yikezhaogia megafenestrala Li, 1984
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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". Vertebrata PalAsiatica 22 (1): 21–28. http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/200903/W020090813374556486083.pdf.
- ↑ 2.0 2.1 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". Vertebrata PalAsiatica 29 (2): 85–94. http://ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/200812/W020090813371248828813.pdf.
Wikidata ☰ Q796424 entry
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