Classification of the family Cyathophyllidae
Fm. †Cyathophyllidae Dana 1846
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G. †Commutatophyllum Kaplan 1971
G. †Cyathophyllum Goldfuss 1826
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Subg. †Cyathophyllum (Cyathophyllum) Goldfuss 1826
†Cyathophyllum aequiseptatum Edwards and Haime 1851
†Cyathophyllum cannopse de Gregorio 1930
†Cyathophyllum captiosum de Gregorio 1930
†Cyathophyllum depressum Hinde 1890
†Cyathophyllum eurekaense Merriam 1974
†Cyathophyllum funatum de Gregorio 1930
†Cyathophyllum nevadense Meek 1877
†Cyathophyllum occidens Stumm 1938
†Cyathophyllum palmeri Meek 1877
†Cyathophyllum propevermiculare de Gregorio 1930
†Cyathophyllum ramosum de Gregorio 1930
†Cyathophyllum robustum Hall 1882
†Cyathophyllum rugosum Hall 1834
†Cyathophyllum zenkeri Billings 1860
Invalid names: Orthocyathus Merriam 1974 [synonym]
G. †Glossophyllum Wedekind 1924
G. †Heterophaulactis Yü 1974
G. †Houershanophyllum Yü and Liao 1978
G. †Loomberaphyllum Pedder 1965
G. †Mansuyphyllum Fontaine 1961
G. †Moravophyllum Kettnerova 1932
G. †Qiannanophyllum Kong 1978
G. †Radiophyllum Hill 1942
G. †Sterictophyllum Pedder 1965