Classification of Longstaff 1933

G. †Eoptychia Longstaff 1933
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Eoptychia sulcata de Koninck 1881
G. †Hemizyga Girty 1915
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Hemizyga clathratula Young and Armstrong 1874
G. †Katosira Koken 1892
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Katosira smithiana Longstaff 1933
G. †Microptychis Longstaff 1912
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Microptychis constricta Sowerby 1821
Microptychis pygmaea Longstaff 1933
Microptychis wrighti Longstaff 1912
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Zygopleura benniana Longstaff 1933
Zygopleura brevis M'Coy 1844
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Zygopleura longnorensis Longstaff 1933
Zygopleura redensis Longstaff 1933
Zygopleura robroystonensis Longstaff 1933
Zygopleura roscobiensis Longstaff 1933
Zygopleura rugifera Phillips 1836
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Zygopleura scalaroides Phillips 1836
Zygopleura sulculosa Phillips 1836
G. †Platyconcha Longstaff 1933
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Platyconcha dunlopiana Longstaff 1933
Platyconcha hindi Longstaff 1933
Fm. †Loxonematidae Koken 1889
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G. †Knightia Longstaff 1933
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Knightia irregularis Longstaff 1933