Sinonyx
| Sinonyx Temporal range: | |
|---|---|
| Skeleton cast of S. jiashanensis holotype (IVPP V10760), University of Michigan Museum of Natural History | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Mesonychia |
| Family: | †Mesonychidae |
| Genus: | †Sinonyx Zhou et al. 1995 |
| Species | |
|
S. jiashanensis | |
Sinonyx ("Chinese claw") is a genus of extinct, superficially wolf-like mesonychid mammals from the late Paleocene of China (about 56 million years ago). It is within the family Mesonychidae, and cladistic analysis of a skull of Sinonyx jiashanensis identifies its closest relative as Ankalagon. S. jiashanensis was discovered in Anhui province, China (30°54′N 120°54′E / 30.9°N 120.9°E, paleocoordinates 33°54′N 113°36′E / 33.9°N 113.6°E), in the Tuijinshan formation.