Classification of Beu and Marshall 2011

Cl. Gastropoda Cuvier 1795 [snail]
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Unr. †Ptenoglossa Gray 1853
G. Pellasimnia Iredale 1931
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†Pellasimnia maxwelli Beu and Marshall 2011
G. Prosimnia Schilder 1927
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†Prosimnia blackae Beu and Marshall 2011
G. Clavilithes Swainson 1840
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†Clavilithes noae Lamarck 1803
Invalid names: Austrolithes Finlay 1931 [synonym], Rhopalithes Grabau 1904 [objective synonym]
Fm. Naticidae Guilding 1834 [moon snail]
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G. †Amauropsona Finlay and Marwick 1937
G. †Maxwellinatica Beu and Marshall 2011
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†Maxwellinatica phillipi Beu and Marshall 2011
Fm. Tornidae Sacco 1896
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G. Naricava Hedley 1913
G. Haloceras Dall 1889
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Haloceras maxwelli Beu and Marshall 2011