''Sinohelicoprion'' ("Chinese spiral jaw") is an extinct genus of helicoprinid

eugeneodontid The Eugeneodontida is an extinct and poorly known order of cartilaginous fishes. They possessed "tooth-whorls" on the symphysis of either the lower or both jaws and pectoral fins supported by long radials. They probably lacked pelvic fins and ana ...

fish that lived during the late

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...

254 to 252 million years ago and became extinct during the Permian-Triassic extinction event. It was first named and classified by H. T. Liu and M. N. Chang in 1963.

Gallery

Sinohelicoprion description.jpg, Information board about Sinohelicoprion in Paleozoological Museum of China.

References

Agassizodontidae Permian fish of Asia {{paleo-shark-stub