Therapsida

Therapsida sunt ordo synapsidum qui mammalia et eorum maiores recte evolutionarios comprehendit. Primum fossile ad Therapsida attributum habetur Tetraceratops insignis ex Aevo Permiano.M. Laurin et R. R. Reisz (1996), "The osteology and relationships of Tetraceratops insignis, the oldest known therapsid," Journal of Vertebrate Paleontology 16(1): 95–102.J. Liu, B. Rubidge, et J. Li (2009), "New basal synapsid supports Laurasian origin for therapsids," Acta Palaeontologica Polonica, 54(3): 393–400. Therapsida ex pelycosauria, diserte ex sphenacodontibus, abhinc annorum 275 milliones evolverunt.

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Categoria:Synapsida
Categoria:Taxa Broom
Categoria:Taxa 1905