Yunguisaurus

Yunguisaurus Temporal range: Late Triassic, Carnian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Superorder:	†Sauropterygia
Clade:	†Pistosauria
Genus:	†Yunguisaurus Cheng et al., 2006
Species:	†Y. liae
Binomial name
†Yunguisaurus liae Cheng et al., 2006

Yunguisaurus is an extinct genus of pistosaur known from the Guizhou Province of China.^[1]

Yunguisaurus is known from the holotype NMNS 004529/F003862, an articulated and almost complete skeleton missing only the distal tail.^[2] The preserved skeleton has a length of about 1.7 metres (5.6 ft) with estimated total length about 2.3 metres (7.5 ft), while paratype specimen became much larger with length around 4.2 metres (14 ft).^[3] It was collected near Huangnihe River, Chajiang of Guizhou, from the Falang Formation. It is thought to belong to the Paragondolella naantangensis-P. polygnathiformis Assemblage Zone, dating to the Carnian stage of the early Late Triassic. It differs from other pistosauroids by a combination of characters. Nevertheless, its original description is a preliminary report while the postcranial skeleton still waits for further preparation and full description.^[1]

Yunguisaurus was first named by Yen-Nien Cheng, Tamaki Sato, Xiao-Chun Wu and Chun Li in 2006 and the type species is Yunguisaurus liae. The generic name is derived from the Yungui Gaoyuan, a plateau named after the Yunnan and Guizhou provinces, in which the holotype was found, and saurus, Greek for "lizard". The specific name honors IVPP Professor Jinling Li for contributing to the recent study of the Chinese Triassic marine vertebrate fauna.^[1]

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