Primates 57:449–453 DOI 10.1007/s10329-016-0571-x Stucky, R.K. and Covert H.H. 2014 A new genus and species of early Eocene (Ypresian) Artiodactyla (Mammalia), Gagadon minimonstrum, from Bitter Creek, ...
11.The Hippopotamus (Hippopotamus amphibius) The hippopotamus, commonly known as the river hippo, is a remarkable member of the Artiodactyla order and the Hippopotamidae family. These massive ...