Classification of the family Diastomatidae

Fm. Diastomatidae Cossmann 1894
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G. Diastoma Deshayes 1850
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Diastoma acuminiense Cossmann 1882
Diastoma acumininense Cossmann 1882
Diastoma americanum Woods 1922
Diastoma costellatum Lamarck 1804
Diastoma elaenia Olsson 1929
Diastoma elongatum Brongniart 1823
Diastoma insulaemaris Pilsbry and Harbison 1933
Diastoma multispiratum Cossmann 1881
Diastoma ornatum Douvillé 1916
Diastoma rakhiensis Eames 1952
Diastoma sameri Abbass 1967
Subfm. Diastomatinae Cossmann 1894
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G. †Aurelianella Cossmann 1893
G. †Dialopsis Cossmann 1888
G. †Keilostoma Deshayes 1848
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Keilostoma malingi Marwick 1943
Invalid names: Paryphostoma Bayan 1861 [synonym]
G. †Telostoma Harris and Burrows 1891
G. †Ewekoroia Adegoke 1977
G. Obtortio Hedley 1899
G. †Teliostoma Harris and Burrows 1891
Invalid names: Ewekoroiidae Adegoke 1977 [synonym]