Classification of Gründel and Kollmann 2013

Superfm. †Streptacidoidea Knight 1931
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G. †Rigauxia Cossmann 1885
Fm. †Cerithideidae Houbrick 1988
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G. †Urgonella Cossmann 1916
Fm. †Colombellinidae Fischer 1884
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G. †Eoranella Sayn 1932
Fm. Potamididae Adams and Adams 1854 [horn snail]
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G. †Exechocirsus Cossmann 1906
Tr. Homalopomatini Keen 1960
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G. †Boutillieria Cossmann 1888