Rhinocerotoidea

Rhinocerotoidea is a superfamily consisting of three family groups horned odd-toed ungulates, two of which are extinct. These are Amynodontidae and Hyracodontidae. The last family group is Rhinocerotidae (rhinoceroses), which survives by virtue of five living species.

Taxonomy

The family tree below shows the relationship between Rhinocerotoidea and other groups.

Internal classification of Perissodactyla

Perissodactyla   Tapiromorpha   Isectolophidae (†)  Ancylopoda   Lophiodontidae (†)  Chalicotheriidae (†)  Ceratomorpha   Tapiroidea   Helaletidae (†)  Tapiridae  Rhinocerotoidea   Amynodontidae (†)  Hyracodontidae (†)  Rhinocerotidae  Hippomorpha   Equoidea   Palaeotheriidae (†)  Equidae  Brontotherioidea   Lambdotheriidae (†)  Brontotheriidae (†)