Hsianwenia

Hsianwenia Temporal range: Pliocene PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Cyprinidae
Subfamily:	Barbinae
Genus:	†Hsianwenia Chang et al, 2008
Species:	†H. wui
Binomial name
†Hsianwenia wui Chang et al, 2008

Hsianwenia wui is an extinct species of cyprinid fish of the family Cyprinidae from the Pliocene lake deposits of the Qaidam inland basin on the northern Tibetan Plateau.

This species is characterised by hypercalcified ribs, which occupy almost the entire body of the fish. The fish seemed to live in a hyper saline environment and the thick costal skeleton may have been an adaptation to this habitat. The excess salts absorbed by the fish being deposited in its bones throughout its life and leading to the thickened skeleton.^[1] It is named in honor of Professor W.U. Hsianwen (1900–1985), one of the founders of freshwater fish research in China.^[2]

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