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The Cetruminantia are a clade made up of the Cetacodontamorpha (or Whippomorpha) and their closest living relatives, the Ruminantia.〔(A higher-level MRP supertree of placental mammals )〕 ==Classification== *Order Artiodactyla (even-toed ungulates) * *Tylopoda (camelids) * *Artiofabula (ruminates, pigs, peccaries, whales, and dolphins) * * *Cetruminantia (ruminates, whales, and dolphins) * * * *Suborder Ruminantia (antelope, buffalo, cattle, goats, sheep, deer, giraffes, and chevrotains) * * * * *Family Antilocapridae (pronghorn) * * * * *Family Bovidae,135 species (antelope, bison, buffalo, cattle, goats, and sheep) * * * * *Family Cervidae, 55 - 94 species (deer, elk, and moose) * * * * *Family Giraffidae, 2 species (giraffes, okapis) * * * * *Family Moschidae, 4 - 7 species (musk deer) * * * * *Family Tragulidae, 6 - 10 species (chevrotains, or mouse deer) * * * *Suborder Whippomorpha (aquatic or semi-aquatic even-toed ungulates) * * * * *Infraorder Acodonta * * * * * *Family Hippopotamidae, 2 species (hippopotamuses) * * * * *Infraorder Cetacea (whales, dolphins, and porpoises) * * * * * *Mysticeti (baleen whales) * * * * * * *Family Balaenidae, 2 - 4 species (right whales and bowhead whales) * * * * * * *Family Balaenopteridae, 6 - 9 species (rorquals) * * * * * * *Family Eschrichtiidae, 1 species (gray whale) * * * * * * *Family Neobalaenidae, 1 species (pygmy right whale) * * * * * *Odontoceti (toothed whales, dolphins, and porpoises) * * * * * * *Superfamily Delphinoidea (dolphins, arctic whales, porpoises, and relatives) * * * * * * * *Family Delphinidae, 38 species (dolphins, killer whales, and relatives) * * * * * * * *Family Monodontidae, 2 species (beluga and narwhal) * * * * * * * *Family Phocoenidae, 6 species (porpoises) * * * * * * *Superfamily Physeteroidea (sperm whales) * * * * * * * *Family Kogiidae, 2 species (pygmy and dwarf sperm whales) * * * * * * * *Family Physeteridae, 1 species (common sperm whale) * * * * * * *Superfamily Ziphoidea (beaked whales) * * * * * * * *Family Ziphidae, 22 species (modern beaked whales) * * * * * * *Superfamily Platanistoidea (river dolphins) * * * * * * * *Family Iniidae, 1 - 3 species (South American river dolphin(s)) * * * * * * * *Family Lipotidae, 1 species (baiji or Chinese river dolphin) * * * * * * * *Family Platanistidae, 1 - 2 species (Asian river dolphin(s)) * * * * * * * *Family Pontoporiidae, 1 species (La Plata dolphin) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cetruminantia」の詳細全文を読む スポンサード リンク
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