Classification of the genus Acrocyathus
G. †Acrocyathus d'Orbigny 1849
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†Acrocyathus cystosus Zhizhina in Bul'vanker and others 1960
†Acrocyathus floriformis hemisphaericus Hayasaka 1936
†Acrocyathus girtyi Hayasaka 1936
†Acrocyathus grechovkae Degtyarev 1973
†Acrocyathus hsujiulingi Yoh 1961
†Acrocyathus lissitzini Zhizhina in Bul'vanker and others 1960
†Acrocyathus pennsylvanicus Shimer 1926
†Acrocyathus pilatus Sando 1983
†Acrocyathus proliferus Hall in Hall and Whitney 1858
†Acrocyathus rotai Zhizhina in Bul'vanker and others 1960
†Acrocyathus shimeri Crickmay 1955
†Acrocyathus unicus Yabe and Hayasaka 1915
†Acrocyathus utkae Degtyarev 1973
†Acrocyathus zhizhinae Vasilyuk 1960