Classification of Säve-Söderbergh 1935
Superfm. †Capitosauroidea Watson 1919
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Fm. †Wetlugasauridae Säve-Söderbergh 1935
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Superfm. †Trematosauroidea Watson 1919
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Fm. †Trematosauridae Watson 1919
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Subfm. †Trematosaurinae Watson 1919
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Invalid names: Lyrocephalinae Säve-Söderbergh 1935 [empty]