Euungulata: Orders Perissodactyla & Artiodactyla

The extant ungulate orders, Perissodactyla (odd-toed ungulates) and Artiodactyla (even-toed ungulates, whales), have a unique taxonomic history where, prior to the availability of molecular evidence, several other extant mammalian groups were placed within an “Ungulata” group, including elephants, hyraxes and their relatives. With greater phylogenetic evidence available today, we have a better idea of which…