The word perissodactyl comes from the Greek language, and means "odd-number finger or toe."

Perissodactyls are divided into 2 suborders, 3 families, and about 15 species, including:

• Suborder Ceratomorpha
  • Family Tapiridae - tapirs
  • Family Rhinocerotidae - rhinoceros
• Suborder Hippomorpha
  • Family Equidae - horses, zebras, asses

BALUCHITHERIUM Baluchitherium (aka Indricotherium) was a large, extinct, hornless rhinoceros. It was one of the largest land mammals.

DONKEY Donkeys are hoofed mammals adapted to desert life.

EOHIPPUS Eohippus was a tiny horse that lived 50 million years ago.

HORSE Horses are very fast runners. Primitive horses were very small.

HYRACOTHERIUM Hyracotherium/Eohippus was a tiny horse that lived 50 million years ago.

INDRICOTHERIUM Indricotherium (aka Baluchitherium) was a large, extinct, hornless rhinoceros. It was one of the largest land mammals.

QUAGGA The Quagga is a recently-extinct relative of the zebra.

RHINOCEROS A rhinoceros is a huge animal from Africa that has one or two horn-like spikes on its head.

TAPIR A plant-eating, hoofed mammal with a small trunk.

WOOLLY RHINOCEROS The Woolly Rhino is an extinct rhinoceros from the Ice Ages.

ZEBRA Zebras have black and white stripes.