Classification of the family Cystiphyllidae
Fm. †Cystiphyllidae Milne-Edwards and Haime 1850
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G. †Bucanophyllum Ulrich 1886
G. †Coleophyllum Hall 1883
Subfm. †Cystiphyllinae Milne Edwards and Haime 1850
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G. †Lythophyllum Wedekind 1925
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†Lythophyllum bermotiensis Tandon et al. 1978
†Lythophyllum proliferum Zhen 1994
Invalid names: Nardophyllum Wedekind 1925 [synonym], Patridophyllum Ulitina 1968 [synonym], Plagiophyllum Wedekind and Vollbrecht 1932 [synonym], Wedekindophyllum Stumm 1949 [synonym]
G. †Cystiphylloides Chapman 1893
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Subg. †Cystiphylloides (Cladionophyllum) Stumm 1961
Subg. †Cystiphylloides (Comanaphyllum) Flügel 1961
Subg. †Cystiphylloides (Skoliophyllum) Wedekind 1937
†Cystiphylloides robertsense Stumm 1937
G. †Cystiphyllum Lonsdale 1839
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Subg. †Cystiphyllum (Cruciphyllum) Lavrusevich 1976
Subg. †Cystiphyllum (Cysticonophyllum) Zaprudskaya and Ivanovskiy 1962
Subg. †Cystiphyllum (Gyalophyllum) Wedekind 1927
Subg. †Cystiphyllum (Hedstroemophyllum) Wedekind 1927
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†Hedstroemophyllum nikiforovae Strelnikov 1971
†Cystiphyllum adrianense de Gregorio 1930
†Cystiphyllum vesiculosum Goldfuss 1826
†Cystiphyllum visbyense Wedekind 1927
Invalid names: Coronoruga Strusz 1961 [synonym], Cystilasma Zaprudskaya and Ivanovskiy 1962 [synonym]
G. †Digonoclisia Yu et al. 1974
G. †Diplochone Frech 1886
G. †Edaphophyllum Simpson 1900
G. †Mackenziephyllum Pedder 1971
G. †Pseudodigonophyllum Spasskiy 1960