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. It was first named and classified by H. T. Liu and M. N. Chang in 1963.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0