Yizhousaurus
Extinct genus of dinosaurs
| Yizhousaurus Temporal range: Early Jurassic, Sinemurian PreꞒ Ꞓ O S D C P T J K Pg N | |
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| Skull and jaw of the holotype | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Clade: | †Sauropodiformes |
| Genus: | †Yizhousaurus Zhang et al., 2018 |
| Type species | |
| †Yizhousaurus sunae Zhang et al., 2018 | |
Yizhousaurus (meaning "Yizhou lizard", after the Chuxiong Yi Autonomous Region[1]) is a genus of basal sauropodiform dinosaurs which existed in what is now Lufeng Formation, Yunnan Province of southern China during the lower Jurassic period.[2] Identified from a nearly complete and exquisitely preserved skeleton, it is the most complete basal sauropod currently known with intact skull.[2] Although its name was revealed in a 2010 Geological Society of America abstract by Sankar Chatterjee, T. Wang, S.G. Pan, Z. Dong, X.C. Wu, and Paul Upchurch,[2] it wasn't validly named and described until 2018. The type species is Yizhousaurus sunae.[1]
Discovery and naming
The holotype was discovered in 2002 and was excavated between October 20 through November 23. It consists of a near-complete skull and lower jaw, 31 vertebrae (nine cervical, fourteen dorsal, three sacral and five caudal), shoulder and pelvic girdles, most of both forelimbs and both thighs. The holotype was informally mentioned in a 2010 Geological Society of America abstract by Sankar Chatterjee, T. Wang, S.G. Pan, Z. Dong, X.C. Wu, and Paul Upchurch.[2] It was eventually named and described in 2018.[1]
References
- ^ a b c Zhang, Qian-Nan; You, Hai-Lu; Wang, Tao; Chatterjee, Sankar (2018). "A new sauropodiform dinosaur with a 'sauropodan' skull from the Lower Jurassic Lufeng Formation of Yunnan Province, China". Scientific Reports. 8 (1): 13464. Bibcode:2018NatSR...813464Z. doi:10.1038/s41598-018-31874-9. PMC 6128897. PMID 30194381.
- ^ a b c d Chatterjee, S.; Wang, T.; Pan, S.G.; Dong, Z.; Wu, X.C.; Upchurch, P. (2010). "A complete skeleton of a basal Sauropod Dinosaur from the early Jurassic of China and the origin of Sauropoda". Geological Society of America Abstracts with Programs. 42 (5): 26.
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