Anomodont
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| Anomodontia Fossil range: Middle Permian - Early Cretaceous[1] |
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Anomocephalus |
The Anomodontia are one of the three major groups of therapsids, an extinct group of animals commonly known as "mammal-like reptiles." They were mostly toothless herbivores. During the Middle Permian they were very diverse, including groups like the Venyukovioidea, the Dromasauria the Dicynodontia, and early very primitive forms like Anomocephalus and Patranomodon. Of these only the Dicynodonts survived to the Late Permian, and became the most successful and abundant of all Permian herbivores, filling ecological niches ranging from large browsers down to small burrowers. Only two dicynodont families survived the Permian–Triassic extinction event, one of which, the Lystrosauridae, soon gave rise to the Kannemeyeridae. These latter were large, stocky, beaked animals that remained the dominant terrestrial herbivore right up until the Late Triassic, when changing conditions (perhaps increasing aridity) caused them to decline and eventually die out.
[edit] Taxonomy
- Order Therapsida
- SUBORDER ANOMODONTIA
- Anomocephalus
- Patranomodon
- Venyukoviamorpha
- Infraorder Dromasauria
- Family Galeopidae
- Infraorder Dicynodontia
- Family Eodicynodontidae
- Colobodectes
- Family Endothiodontidae
- Pristerodontia
- Family Pristerodontidae
- Family Oudenodontidae
- Family Aulacocephalodontidae
- Family Lystrosauridae
- Family Dicynodontidae
- Superfamily Kannemeyeriiformes
- Family Shansiodontidae
- Family Stahleckeriidae
- Family Kannemeyeriidae
- Diictodontia
- Robertia
- Family Diictodontidae
- Superfamily Emydopoidea
- Family Emydopidae
- Family Cistecephalidae
- Kingorioidea
- Family Kingoriidae
