These South American ‘notoungulates’ did the same herbivorous job as horses, rhinos and camels, but they evolved independently of them. The litopterns split early into horse-like and camel-like forms, which probably (from the position of the nose bones) had a trunk like an elephant. Another group, the pyrotheres, also seem to have had trunks, and may have been quite elephant-like in other respects.
