What is the origin of the kansui name ?
The fossil teeth , far larger than those of " A. zitteli " , date back to around 28-27 million years ago The Mongolian material has been named " Radinskya yupingae " , while the European material has been given the " nomen dubium " of " Crivadiatherium iliescui " , and the Turkish material has been named " Palaeoamasia kansui " ( also " nomen dubium " ) .