Classification of Colbert and Kitching 1977

Superor. Therapsida Broom 1905 [therapsid]
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Subor. Theriodontia Owen 1876
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Infraor. Cynodontia Owen 1861 [cynodont]
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Fm. †Galesauridae Lydekker 1890
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G. †Thrinaxodon Seeley 1894
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†Thrinaxodon liorhinus Seeley 1894