| 释义 |
- Classification
- References
{{Automatic taxobox
| name = Cetruminantia
| taxon = Cetruminantia
| fossil_range = Early Eocene to present
| authority = Waddell et al. 1999
| image = Hippo pod edit.jpg
| subdivision_ranks = Subgroups
| subdivision =- Cetacodontamorpha
- Ruminantiamorpha
}}The Cetruminantia are a clade made up of the Cetacodontamorpha (or Whippomorpha) and their closest living relatives, the Ruminantia.[1] {{Cetartiodactyla Cladogram}}Classification- Order Artiodactyla (even-toed ungulates)
- Tylopoda (camelids)
- Artiofabula (ruminants, pigs, peccaries, whales, and dolphins)
- Cetruminantia (ruminants, 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)
References1. ^A higher-level MRP supertree of placental mammals
{{Taxonbar|from=Q1369337}} 2 : Ungulates|Phylogenetics |