Sinohelicoprion

Sinohelicoprion ("Chinese spiral jaw") is an extinct genus of helicoprinid eugeneodontid fish that lived during the late Permian 254 to 252 million years ago and became extinct during the Permian-Triassic extinction event.[1]

Sinohelicoprion Temporal range: 254–252 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Late Permian
Tooth whorl (IVPP V4752.2) of S. qomolangma, Paleozoological Museum of China
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	†Eugeneodontida
Family:	†Helicoprionidae
Genus:	†Sinohelicoprion Liu & Chang, 1963
Species
S. changhsingensis Liu & Chang, 1963 (type) S. macrodontus Lei, 1983 S. qomolangma Zhang, 1974

Comparison of S. changhsingensis and Helicoprion sp.

It was first named and classified by H. T. Liu and M. N. Chang in 1963.[2][3]

Gallery

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  Information board about Sinohelicoprion in Paleozoological Museum of China.

References

1. "Sinohelicoprion". Fossilworks. Retrieved 13 December 2015.
2. "The Paleobiology Database". Retrieved 14 December 2015.
3. H. T. Liu; M. N. Chang (1963). "First discovery of helicoprionid in China". Vertebrata PalAsiatica (in Chinese). 7 (2): 123–129.