| Yangtanglestes conexus Temporal range: Early Paleocene–Late Paleocene |
|
|---|---|
| Yangtanglestes conexus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Mesonychia |
| Family: | Mesonychidae |
| Genus: | Yangtanglestes |
| Species: | Y. conexus |
Yangtanglestes conexus is a weasel-like Chinese mesonychid with slender jaws that first appeared during the Early Paleocene and was found throughout Asia. It is the oldest known mesonychid. It went extinct during the Nongshanian division of the Late Paleocene, and lived sympatrically with its descendant genera, including Dissacus, Sinonyx and Jiangxia.