Temporal range: Middle Jurassic, 174.1–163.5 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Clade: Cynodontia
Clade: Mammaliaformes
Order: Docodonta
Family: Docodontidae
Genus: Peraiocynodon
Simpson, 1929
Type species
Peraiocynodon inexpectatus
Simpson, 1929
  • P. inexpectatus Simpson, 1929
  • P. major Sigogneau-Russell, 2003

Peraiocynodon is an extinct mammaliaform from the order Docodonta, found in the Middle Jurassic rocks of the United Kingdom. It is only known from isolated molar teeth found in the mammal bed at Kirtlington cement quarry in Oxfordshire, England (Forest Marble Formation).

Peraiocynodon was originally erected in 1929 with a single species named, but it was later considered to be a synonym of Docodon. However, in 2003, the genus was resurrected and a new species, P. major, was described based on new teeth found at Kirtington Cement Quarry in Oxfordshire. It remains uncertain whether one or both of these species of Peraiocynodon may be the milk teeth of another genus of docodontan, or whether they truly are separate species.

This page was last updated at 2022-09-06 11:06 UTC. Update now. View original page.

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