Abstract
A new sauropterygian,Anshunsaurus huangguoshuensis, is described on the basis of a well-preserved skull from the Late Triassic Wayao Member of Falang Formation, Guizhou Province, southwestern China. It is ascribed to Eusauroptetrygia because it possesses the following characters: the rostrum is mainly composed by the premaxillae; the nasals are small, paired and separated from one another by the premaxillae; the external nares are close to the orbits; and the frontals are fused.Anshunsaurus differs from other Triassic sauropterygians in its large size, long rostrum and the supratemporal fenestrae slightly smaller than orbits. It is further considered to be closely related toPistosaurus on the basis of the nasals contact with the prefrontals; large pineal foramen, lain in the anterior part of the parietal table; the squamosals not in contact posterior to the supratemporal fenestra. The discovery ofAnshunsaurus with the ichthyosaurs in the same locality indicates a new assemblage of Triassic marine tetrapods in China.
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References
Young, C. C., On the new Pachypleurosauroidea from Keichow, South-west China,Vert. PalAsiat., 1958. 2(2/3): 69.
Young, C. C., On the new nothosaurus from Hupeh and Kweichou, China,Vert. PalAsiat., 1965, 9(4): 315.
Rieppel, O. The status ofShingyisaurus unexpectus from the middle Triassic of Kweichou, China.Journal of Vertebrate Paleontology, 1998, 18(3): 541.
Young, C. C., On a revised determination of a fossil reptile from Jenhui, Kweichou with note on a new icthyosaur probably from China,Vert. PalAsiat., 1965, 9(4): 368.
Bureau of Geology and Mineral resources of Guizhou Province,Regional Geology of Guirhou Province, People’s Republic of China Ministry of Geology and Mineral Resources Geological Memoirs, Series 1, Number 7, Beijing: Geological Publishing House, 1989, 276–321.
Edinger, T.,Pistosaurus Neues Jahrb. Mineral. Geol. Palaeontol, 1935, 74(B): 321.
Storrs, G. W., Anatomy and relationships ofCorosaurus alcovensis (Diapsida: Sauroptergia) and the Triassic Alcova Limestone of Wyoming,Bulletin of the Peabody Museum of Natural History, 1991, 44: 1.
Storm, G. W., The systematic position ofSilvestrosaurus and a classification of Triassic sauroptergians,Palaontologische Zeitschrift, 1993, 67: 177.
Rieppel, O., Osteology ofSimosaurus gaillardoti and the relationships of stem-pup Saumptergia,Fieldiana: Geology, n. s., 1994, 28: 1.
Rleppel, O., Revision of the sauroptergian reptile genusCymatosaurus V. Fritsch, 1894, and the relationships ofGermanosaurus Nopcsa, 1928, from the Middle Triassic of Europe,Fieldiana: Geology, n. s., 1997, 34: 1.
Taylor, M. A., Cruickshank, A. R. I., Cranial anatomy and functional morphology ofPliosaurus brachyspondylus (Reptilia: Plesiosauria) from the Upper Jurassic of Westbury, Wiltshire,Philosophical Transactions of the Royal Society of Lodon, Series B, 1993, 341: 399.
Storrs, G. W., Morphological and taxonomic clarification of the genusPlesiosaurus, Ancient marine reptiles, Son Diego: Academic Press, 1997, 145–190.
Storm, G. W., Taylor, M. A., Cranial anatomy of a new plesiosaur genus from the lowermost Lias (Rhaetian/Hettangian) of Street, Somerset, England,Joumul of Vertebrate Paleontology, 1996, 16(3): 404.
Sues, H. D., Postcranial skeleton ofPistosaurus and interrelationships of the Sauropterygia (Diapeida),Zoological Journal of the Linnean Society, 1987, 90: 109.
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Liu, J. Sauropterygian from Triassic of Guizhou, China. Chin.Sci.Bull. 44, 1312–1316 (1999). https://doi.org/10.1007/BF02885852
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DOI: https://doi.org/10.1007/BF02885852