Theriodontia
Gorgonopsia1.gif
Memiliki vertebrae bikonkaf, lengan ambulatori dan pelvis dan bahu yang berkembang baik.Kepala mirip dengan kura-kura. Contoh terbaik adalah Dicynodont. Manusia berevolusi dari leluhur Theriodontia. Theriodontia terbagi menjadi tiga cabang
Gorgonopsia
Therocephalia
Cynodontia

Referensi :
Barghusen, HR (1975), A review of fighting adaptions in dinocephalians (Reptilia, Therapsida), Paleobiology 1: 295-311.
Boonstra, LD (1956), The skull of Tapinocephalus and its near relatives. Ann. S. Afr. Mus. 43: 137-169.
Boonstra, LD (1965), The skull of Struthiocephalus kitchingi. Ann. S. Afr. Mus. 48: 251-265.
Brink, AS (1956), Struthiocephalus kirchingi sp. nov. Palaeont. Afr. 5: 39-56.
Conrad, J & C Sidor (2001), Re-evaluation of Tetraceratops insignis (Synapsida: Sphenacodontia). J. Vert. Paleontol. 21: 42A (abstract)
Hancox, PJ & BA Rubidge (1997), The role of fossils in interpreting the development of the Karoo basin. Palaeontol. Afr. 33: 41-54.
Luo, Z-X, Z Kielan-Jaworowska & RL Cifelli (2002), In quest for a phylogeny of Mesozoic mammals. Acta Palaeontol. Pol. 47: 1-78.
Modesto, SP & N Rybczynski (2000), The amniote faunas of the Russian Permian: implications for Late Permian terrestrial vertebrate biogeography, in MJ Benton, MA Shishkin, DM Unwin & EN Kurochkin (eds.), The Age of Dinosaurs in Russia and Mongolia, Cambridge Univ. Press, pp. 17-34.
Rubidge, BS & CA Sidor (2001), Evolutionary patterns among Permo-Triassic therapsids. Ann. Rev. Ecol. Syst. 32: 449-480.

Sumber gambar : http://www.palaeos.com/Vertebrates/Units/400Therapsida/400.800.html

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License