Horses are members of the odd-toed ungulates, Perissodactyla.    From Wordnik.com.  [Letters to the Editor] Reference

Cladistic analysis of the family Rhinocerotidae (Perissodactyla).    From Wordnik.com.  [Are Sumatran rhinos really ‘living fossils’?] Reference

Perissodactyla and all the other orders of hair-covered, milk-producing animals are grouped together in a "class," Mammalia.    From Wordnik.com.  [Lazarus, Elvis, zombies and Jimmy Hoffa] Reference

Equidae is then grouped with two other families, the rhinoceroses and the tapirs, to make up an "order," Perissodactyla, the odd-toed ungulates.    From Wordnik.com.  [Lazarus, Elvis, zombies and Jimmy Hoffa] Reference

Phylogenetic relationships of the five extant rhinoceros species (Rhinocerotidae, Perissodactyla) based on mitochondrial cytochrome b and 12S rRNA genes.    From Wordnik.com.  [Are Sumatran rhinos really ‘living fossils’?] Reference

Most of them are 59 Chiroptera, but there are also 17 Rodentia, 11 Carnivora, 5 Edentada, 4 Marsupialia, 2 Primates, 2 Artiodactyla, 1 Perissodactyla, and 1 Lagomorpha.    From Wordnik.com.  [Llanos] Reference

Mammals of the Soviet Union: Artiodactyla and Perissodactyla.    From Wordnik.com.  [Central Asian riparian woodlands] Reference

Species taxonomy, phylogeny and biogeography of the Brontotheriidae (Mammalia, Perissodactyla).    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

Tougard C, Delefosse T, Hänni C, Montgelard C (2001) Phylogenetic relationships of the five extant rhinoceros species (Rhinocerotidae, Perissodactyla) based on mitochondrial cytochrome.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The family owned a crumbly brick house and a coachman named Joseph in a coat of many colours, and a horse so old that he claimed to belong to the order of the Perissodactyla, and had toes instead of hoofs.    From Wordnik.com.  [Roads of Destiny] Reference

The same orders are represented: Perissodactyla (Rhinocerotoidea), Artiodactyla (by far the commonest) and a few Carnivora (idem, p.    From Wordnik.com.  [No joke: someone stepped in it - The Panda's Thumb] Reference

Rhinocerotidae (Perissodactyla).    From Wordnik.com.  [Are Sumatran rhinos really ‘living fossils’?] Reference

Perissodactyla.    From Wordnik.com.  [Conservapedia - Recent changes [en]] Reference