Noun
A division of Artiodactyla having four stomachs. This division includes the camels, deer, antelopes, goats, sheep, neat cattle, and allies.
Source: Webster's dictionaryBy the Late Eocene (46 million years ago), the three modern suborders had already developed: Suina (the pig group); Tylopoda (the camel group); and Ruminantia (the goat and cattle group). Source: Internet
Differences in stomach construction indicated that rumination evolved independently between tylopods and ruminants ; therefore tylopods were excluded from Ruminantia. Source: Internet
Shared modern nomenclature divides Cetartiodactyla in five subordinate taxa that are also monophyletic: camelids (Tylopoda), pigs and peccaries (Suina), ruminants (Ruminantia), hippos (Ancodonta), and whales (Cetacea). Source: Internet