Tianchisaurus
| Tianchisaurus Temporal range: Late Jurassic,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Thyreophora |
| Clade: | †Ankylosauria |
| Genus: | †Tianchisaurus Dong, 1993 |
| Type species | |
| †Tianchisaurus nedegoapeferima Dong, 1993
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| Synonyms | |
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Tianchisaurus (meaning "heavenly pool lizard"), also invalidly called Tianchiasaurus and "Jurassosaurus", is a genus of ankylosaurian dinosaur from the Late Jurassic[1] (Oxfordian–Kimmeridgian)-aged Toutunhe Formation of China. It is one of the oldest ankylosaurs, being slightly younger than the Moroccan Spicomellus.[2] While many later-diverging ankylosaurids had bony clubs at the tips of their tails, Tianchisaurus likely lacked such a structure.
Discovery and naming
[edit]The holotype (IVPP V. 10614), discovered in 1974, consists of skull fragments, five cervicals, six dorsals, seven sacrals, and three caudals, limb fragments, scutes and some unidentifiable fragments.[3][4]
The type specimen was informally referred to as "Jurassosaurus" after the 1993 film Jurassic Park, and the species epithet nedegoapeferima is formed from the surnames of the film's main stars: Sam Neill, Laura Dern, Jeff Goldblum, Richard Attenborough, Bob Peck, Martin Ferrero, Ariana Richards, and Joseph Mazzello.[3] Director Steven Spielberg, who has funded Chinese dinosaur research, proposed the name. Dong Zhiming ultimately discarded the genus name "Jurassosaurus" (which is now a nomen nudum) in favor of Tianchisaurus, but retained the species name honoring the actors. The description paper uses the spellings Tianchiasaurus and Tianchisaurus interchangeably, but is spelled with the extra "a" in the section naming it as a new genus. In 1994, Dong published an erratum stating that Tianchisaurus is the correct name.[5]
"Sanghongesaurus", mentioned by Zhao Xijin (1983),[6] is sometimes referred to as a basal ornithischian or a synonym of Tianchisaurus.[7]
See also
[edit]
References
[edit]- ^ Huang, Diying (2019). "Jurassic integrative stratigraphy and timescale of China". Science China Earth Sciences. 62 (1): 223–255. Bibcode:2019ScChD..62..223H. doi:10.1007/s11430-017-9268-7. ISSN 1674-7313.
- ^ Maidment, Susannah C. R.; Strachan, Sarah J.; Ouarhache, Driss; Scheyer, Torsten M.; Brown, Emily E.; Fernandez, Vincent; Johanson, Zerina; Raven, Thomas J.; Barrett, Paul M. (2021-09-23). "Bizarre dermal armour suggests the first African ankylosaur". Nature Ecology & Evolution. 5 (12): 1576–1581. Bibcode:2021NatEE...5.1576M. doi:10.1038/s41559-021-01553-6. ISSN 2397-334X. PMID 34556830. S2CID 237616095.
- ^ a b Dong, Z. (1993). "An ankylosaur (ornithischian dinosaur) from the Middle Jurassic of the Junggar Basin, China." Vertebrata PalAsiatica 31:258-264.
- ^ Atkinson, L. "TIANCHIASAURUS :: from DinoChecker's dinosaur archive". ‹http://www.dinochecker.com/dinosaurs/TIANCHIASAURUS›. Web access: 06th Aug 2020.
- ^ Dong Zhiming (1994). "Erratum". Vertebrata PalAsiatica. 32: 142.
- ^ Xijin, Zhao. (1983). Phylogeny and evolutionary stages of Dinosauria. Acta Palaeontologica Polonica 28(1-2):295-306
- ^ Carpenter, K. (2001). Phylogenetic analysis of the Ankylosauria. In K. Carpenter (ed.), The Armored Dinosaurs. Indiana University Press, Bloomington 455-483
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