Chingkankousaurus
Extinct genus of reptiles
| Chingkankousaurus Temporal range: Late Cretaceous, 85–75 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | †Pantyrannosauria |
| Genus: | †Chingkankousaurus Young, 1958 |
| Species: | †C. fragilis |
| Binomial name | |
| †Chingkankousaurus fragilis Young, 1958 | |
Chingkankousaurus (named for Ch'ing-kang-kou, sic for Wade–Giles Chin1-kang1-k'ou3, pinyin Jin-gang-kou 'diamond port' Chinese: 金刚口 village) is a genus of theropod dinosaur containing the single species Chingkankousaurus fragilis.[1][2] C. fragilis is known only from a single fossilized bone fragment (specimen number IVPP V836) from the late Cretaceous Period Wangshi Series of Shandong province in eastern China.[1]
Description
Chingkankousaurus was identified by Yang Zhongjian (C.C. Young) in 1958 from a single "scapula",[1] which he said "basically resembles that of Allosaurus but is smaller." It had been proposed that the scapula was a rib or gastralia fragment, but this was considered unlikely in a 2013 study. Molnar et al. (1990) thought the scapula may have belonged to a tyrannosaurid. Chure (2001) assigned it to the Coelurosauria, and more recent research has supported the initial identification as a type of tyrannosauroid, with some even arguing it to be a synonym of Tarbosaurus bataar,[3] though it is currently considered a nomen dubium among that group.[2]
References
- ^ a b c C.-C. Young. (1958). The dinosaurian remains of Laiyang, Shantung. Palaeontologia Sinica, New Series C, Whole Number 42(16):1-138
- ^ a b Brusatte, S. L., Hone, D. W. E., and Xu, X. (2013). "Phylogenetic revision of Chingkankousaurus fragilis, a forgotten tyrannosauroid specimen from the Late Cretaceous of China." In: J.M. Parrish, R.E. Molnar, P.J. Currie, and E.B. Koppelhus (eds.), Tyrannosaur! Studies in Tyrannosaurid Paleobiology. Indiana University Press, Bloomington, IN.
- ^ Holtz, Thomas R. Jr. (2004). "Tyrannosauroidea". In Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (eds.). The Dinosauria (Second ed.). Berkeley: University of California Press. p. 124. ISBN 978-0-520-24209-8.
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