Classification of Zinsmeister 1983
Subg. †Venericardia (Pacificor) Verástegui 1953
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†Venericardia (Pacificor) venturensis Waring 1917
Fm. Turritellidae Lovén 1847 [turret shell]
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Fm. Buccinidae Rafinesque 1815 [true whelk]
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Fm. Cymatiidae Iredale 1913
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Fm. Epitoniidae Berry 1910 [wentletrap]
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Fm. Hipponicidae Troschel 1861 [hoof shell]
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Superfm. †Muricacea de Costa 1776
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Fm. †Columbariidae Tomlin 1928
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G. Fulgurofusus Grabau 1904
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†Fulgurofusus darraghi Zinsmeister 1983
†Fulgurofusus waringi Zinsmeister 1983
Fm. Naticidae Guilding 1834 [moon snail]
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G. †Eocernina Gardner 1934
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†Eocernina hannibali Dickerson 1914
†Eocernina hespericosta Zinsmeister 1983
Fm. Ostreidae Rafinesque 1815 [oyster]
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Fm. Pinnidae Leach 1819
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Fm. Ringiculidae Philippi 1853
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G. †Gilbertina Morlett 1888
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†Gilbertina inopinata Morlet 1888
†Gilbertina popenoei Zinsmeister 1983
Fm. Tellinidae Blainville 1814 [tellin clam]
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Fm. Trochidae Rafinesque 1815 [top snail]
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Fm. Turridae Swainson 1840 [turrid]
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Fm. Veneridae Rafinesque 1815 [venus clam]
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Fm. Tudiclidae Cossmann 1901
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G. †Cophocara Stewart 1927
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†Cophocara stantoni Stewart 1927
†Cophocara stewarti Zinsmeister 1983
G. Heteroterma Gabb 1869
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†Heteroterma gabbi Stanton 1896
†Heteroterma striata Stanton 1896
†Heteroterma trochoidea Gabb 1869