Rhachiocephalidae

Extinct family of dicynodonts

Rhachiocephalidae
Temporal range: Late Permian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Suborder: Anomodontia
Clade: Dicynodontia
Clade: Cryptodontia
Family: Rhachiocephalidae
Maisch, 2000
Synonyms
  • Pelorocyclopinae Broom, 1935
  • Pelorocyclopini King, 1988

Rhachiocephalidae is an extinct family of dicynodont therapsids. It includes two genera from the Late Permian of southern Africa, Rhachiocephalus and Kitchinganomodon. Rhachiocephalids were the largest dicynodonts in the Permian, although the kannemeyeriiform dicynodonts of the Late Triassic grew to larger sizes. Rhachiocephalids are also unusual in that they have long, low skulls.[1]

References

  1. ^ Kammerer, C.F.; Angielczyk, K.D. (2009). "A proposed higher taxonomy of anomodont therapsids" (PDF). Zootaxa. 2018: 1–24.
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Anomodontia
Synapsida
    • see Synapsida
Anomodontia
    • see below↓
Anomocephaloidea
Venyukovioidea
Chainosauria
Dicynodontia
    • see below↓
Galepus jouberti
Pylaecephalidae
Endothiodontia
Therochelonia
Emydopoidea
Emydopidae
Myosauridae
Kingoriidae
Cistecephalidae
Bidentalia
    • see below↓
Diictodon feliceps Dicynodontoides recurvidens
Elphidae
Geikiidae
Oudenodontidae
Rhachiocephalidae
Dicynodontoidea
Lystrosauridae
Kannemeyeriiformes
    • see below↓
Geikia elginensis Lystrosaurus murrayi
Shansiodontidae
Kannemeyeriidae
Stahleckeriidae
Placeriinae
Stahleckeriinae
Lisowicia bojani
Nomina dubia
Paraphyletic groups
Taxon identifiers
Rhachiocephalidae


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