Classification of the family Discinidae
Fm. †Discinidae Gray 1840
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G. Discradisca Stenzel 1965
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Discinisca (Discradisca) littigensis Stenzel 1965
Discradisca antillarum Orbigny 1846
Discradisca cumingi Broderip 1833
†Discradisca cumingi hannibali Hertlein and Grant 1944
Discradisca indica Dall 1920
†Discradisca multiradiata Morgan 1915
Discradisca rikuzenensis Hatai 1940
Discradisca sparselineata Dall 1920
Discradisca stella Gould 1962
Discradisca strigata Broderip 1834
G. †Gigadiscina Mergl and Massa 2005
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†Gigadiscina gigantissima Cooper and Grant 1974
†Gigadiscina lessardi Mergl and Massa 2005
G. †Orbiculoidea d'Orbigny 1847
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†Orbiculoidea affinis M'Coy 1847
†Orbiculoidea anhuiensis Jin and Hu 1978
†Orbiculoidea armstrongi Reed 1952
†Orbiculoidea batesvillensis Weller 1897
†Orbiculoidea capax White 1862
†Orbiculoidea clintonensis Waterhouse 1986
†Orbiculoidea concentrica Wahlenberg 1821
†Orbiculoidea damanensis Sarycheva and Sokolskaja 1952
†Orbiculoidea elegans Liao 1980
†Orbiculoidea excentrica Ifanova 1972
†Orbiculoidea excentrica Lange 1943
†Orbiculoidea forbesa Davidson 1848
†Orbiculoidea gibba Lindström 1880
†Orbiculoidea interlineata Easton 1962
†Orbiculoidea jangarensis Ustritsky 1960
†Orbiculoidea keokuk Gurley 1884
†Orbiculoidea kolymaensis Licharew 1959
†Orbiculoidea kullsbergensis Holmer 1987
†Orbiculoidea linguliformis Kalashnikov 1981
†Orbiculoidea magna Feng 1978
†Orbiculoidea minuta Liao 1980
†Orbiculoidea missouriensis Shumard 1858
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Invalid names: Discina manhattanensis Meek and Hayden 1858 [synonym]
†Orbiculoidea nucleola Liao 1980
†Orbiculoidea ovalis Cloud 1944
†Orbiculoidea pileolus Whiteaves 1889
†Orbiculoidea platymitraformis Liang 1990
†Orbiculoidea prietana Chronic 1949
†Orbiculoidea qieermaensis Xu and Liu 1983
†Orbiculoidea qinglongensis Liao 1980
†Orbiculoidea radiata Troedsson 1918
†Orbiculoidea rotularia Waterhouse 1986
†Orbiculoidea sampsoni Miller 1891
†Orbiculoidea semipolita Whiteaves 1884
†Orbiculoidea shallochensis Reed 1917
†Orbiculoidea sibirica Moisseiev 1947
†Orbiculoidea sodalis Barrande 1879
†Orbiculoidea soyanensis Kalashnikov 1993
†Orbiculoidea spitzbergensis Lundgren 1887
†Orbiculoidea stincharensis Reed 1917
†Orbiculoidea taskrestensis Dagys 1985
†Orbiculoidea tobaensis Jin and Sun 1981
†Orbiculoidea utahensis Meek 1877
†Orbiculoidea varsoviensis Worthen 1884
†Orbiculoidea verum Masunaga and Shiino 2021
†Orbiculoidea warthi Waagen 1891
†Orbiculoidea winsnesi Gobbett 1963
†Orbiculoidea wisnesi Gobbett 1963
†Orbiculoidea wyomingensis Branson and Greger 1918
†Orbiculoidea xinguensis CorrĂȘa and Ramos 2020
†Orbiculoidea yangkangensis Xu and Liu 1983
G. †Roemerella Hall and Clarke 1892
G. †Schizotreta Kutorga 1848
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†Schizotreta concava Wright 1963
†Schizotreta corrugata Cooper 1956
†Schizotreta elliptica Kutorga 1846
†Schizotreta marginalis Hansen and Holmer 2011
†Schizotreta medioradiata Reed 1917
Invalid names: Orbiculoideinae Schuchert 1929 [empty]