Classification of Marks 1951
G. Anatina Schumacher 1817
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Fm. Buccinidae Rafinesque 1815 [true whelk]
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G. Cantharus Röding 1798
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G. Hanetia Jousseaume 1880
Fm. Cancellariidae Gray 1853
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Fm. Muricidae Rafinesque 1815 [murex snail]
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Fm. Nassariidae Iredale 1916
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G. Tritiaria Conrad 1865
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Subg. Tritiaria (Antillophos) Woodring 1928
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†Tritiaria (Antillophos) landesi Marks 1951
†Tritiaria (Antillophos) mexicana Bose 1906
Fm. †Pyrenidae Suter 1909
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G. Anachis Adams and Adams 1853
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G. Strombina Mörch 1852
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†Strombina cimarroma Marks 1951
†Strombina daulechica Marks 1951
†Strombina pequenita Marks 1951
Fm. Thaisidae Dall
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†Apolymetis trinitaria Dall 1900
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†Apolymetis trinitaria colombiensis Weisbord 1929