Classification of Szabó 2011
Fm. Purpurinidae Zittel 1895
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Fm. Calliostomatidae Thiele 1924
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Subfm. †Callotrochinae Szabó 2011
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G. †Callotrochus Kutassy 1938
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†Callotrochus triadicus Kutassy 1927
Invalid names: Mesotrochus Kutassy 1927 [replaced]
Fm. †Delphinulopsidae Blodgett et al. 2001
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