Perissodactyla vs. Proboscidea — What's the Difference?

A division of ungulate mammals, including those that have an odd number of toes, as the horse, tapir, and rhinoceros; - opposed to Artiodactyla.

The Proboscidea (, from the Greek προβοσκίς and the Latin proboscis) are a taxonomic order of afrotherian mammals containing one living family (Elephantidae) and several extinct families. First described by J. Illiger in 1811, it encompasses the elephants and their close relatives.

Nonruminant ungulates: horses; tapirs; rhinoceros; extinct forms

An order of large mammals including the elephants and mastodons.

In some classifications included in the genus Martynia and hence the two taxonomic names for some of the unicorn plants

An order of animals including elephants and mammoths