Cynodontia
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Cynodontia is a clade of eutheriodont therapsids that first appeared in the Late Permian, and extensively diversified after the Permian–Triassic extinction event. Mammals are cynodonts, as are their e
Skull of Bonacynodon and a comparison of various cynodont canine teeth
Skeleton of Procynosuchus
Skull of Thrinaxodon
Thrinaxodon from the Early Triassic of South Africa
Therapsida
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Therapsida is a major group of eupelycosaurian synapsids. It includes mammals, as well as their ancestors and close relatives. Many defining traits of modern mammals had their origins within early the
Cynodontia
…Cynodontia (from Ancient Greek κύων (kúōn) 'dog' and ὀδούς (odoús) 'tooth') is a clade of eutheriodont therapsids that first appeared in the Late Permian (approximately 260 mya), and extensively diversified after the Permian–Triassic extinction event. Mammals are…
Therapsida 3
Holotype skull of Raranimus dashankouensis, the most basal-known therapsid
Restoration of Euchambersia with dicynodont prey. Note that this South African therocephalian is suspected to be the oldest-known venomous tetrapod.
Biarmosuchus, a biarmosuchian