Genus
Valid Extinct

Guizhouichthyosaurus

Cao and Luo 2000

Guizhouichthyosaurus is an extinct genus of ichthyosaur which is known primarily from the Xiaowa Formation of the lower Carnian stage of the Late Triassic in southwest China. The type species of this genus is Guizhouichthyosaurus tangae, of which multiple skeletons are known. It has been reassigned as a species of the genus Shastasaurus in the past, though it has since been considered distinct. The ichthyosaurs Cymbospondylus asiaticus, named in 2002, and Panjiangsaurus epicharis, named in 2003, are junior synonyms of G. tangae. The genus is also known from the Ladinian-aged Middle Triassic Zhuganpo Formation; additionally, the species "Callawayia" wollongangense may belong to Guizhouichthyosaurus.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
8
Group
Ichtyosaures
Carnivore nektonic Marine
Guizhouichthyosaurus
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Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Ichthyosauria Unranked clade
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Hueneosauria Unranked clade
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Merriamosauria Unranked clade
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Shastasauridae Family
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Guizhouichthyosaurus Genus
Fossil sites 8 geolocated sites
Distribution
Top countries
🇨🇳 China
8
Geological formations
Xiaowa
4
Falang
3
Wayao
1
Temporal distribution
Carnian (237–227.3 Ma)
5
Ladinian (241.464–237 Ma)
3
Species (4)
Cymbospondylus asiaticus subjective synonym of Guizhouichthyosaurus tangae 237 Ma
Guizhouichthyosaurus tangae 237 Ma
Guizhouichthyosaurus wolonggangense 237 Ma
Panjiangsaurus epicharis subjective synonym of Guizhouichthyosaurus tangae 237 Ma
Images 1
Bibliography
Original description
M. W. Maisch, X.-R. Pan, and Z.-Y. Sun, T. Cai, D.-P. Zhang, J.-L. Xie. 2006. Cranial osteology of Guizhouicthyosaurus tangae (Reptilia: Ichthyosauria) from the Upper Triassic of China. Journal of Vertebrate Paleontology 26(3):588-597 DOI ↗
Bibliography (7)
D.-Y. Jiang, R. Motani, and A. Tintori, O. Rieppel, C. Ji, M. Zhou, X. Wang, H. Lu, Z.-G. Li. 2020. Evidence supporting predation of 4-m marine reptile by Triassic megapredator. iScience DOI ↗
H. Lu, D.-Y. Jiang, and R. Motani, P.-G. Ni, Z.-Y. Sun, A. Tintori, S.-Z. Xiao, M. Zhou, C. Ji, W.-F. Fu. 2018. Middle Triassic Xingyi Fauna: Showing turnover of marine reptiles from coastal to oceanic environments. Palaeoworld 27(1):107-116 DOI ↗
Q.-H. Shang and C. Li. 2009. On the occurrence of the ichthyosaur Shastasaurus in the Guanling biota (Late Triassic), Guizhou, China. Vertebrata PalAsiatica 47(3):178-193
X. Wang, G. H. Bachmann, and H. Hagdorn, P. M. Sanders, G. Cuny, X. Chen, C. Wang, L. Chen, L. Cheng, F. Meng, G. Xu. 2008. The Late Triassic black shales of the Guanling area, Guizhou province, south-west China: a unique marine reptile and pelagic crinoid fossil lagerstätte. Palaeontology 51(1):27-61
X.-H. Chen, L. Cheng, and P. M. Sander. 2007. A new species of Callawayia (Reptilia: Ichthyosauria) from the Late Triassic in Guanling, Guizhou. Geology in China 34(6):974-982
L. Cheng, O. Wings, and X. Chen, P. M. Sander. 2006. Gastroliths in the Triassic ichthyosaur Panjiangsaurus from China. Journal of Paleontology 80(3):583-588
M. W. Maisch, X.-R. Pan, and Z.-Y. Sun, T. Cai, D.-P. Zhang, J.-L. Xie. 2006. Cranial osteology of Guizhouicthyosaurus tangae (Reptilia: Ichthyosauria) from the Upper Triassic of China. Journal of Vertebrate Paleontology 26(3):588-597 DOI ↗