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 cynodonts, as are their extinct ancestors and close relatives (Mammaliaformes), having evolved from advanced probainognathian cynodonts during the Late Triassic.
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 cynodonts, as are their extinct ancestors and close relatives (Mammaliaformes), having evolved from advanced probainognathian cynodonts during the Late Triassic.
Source: Wikipedia "Cynodontia" · CC BY-SA 4.0
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