Classification of Gardner 1943
G. Uzita Adams and Adams 1853
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†Uzita bidentata Emmons 1858
†Uzita neogenensis Gardner and Aldrich 1919
†Uzita smithiana Olsson 1916
G. Anadara Gray 1847 [ark]
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†Anadara carolinensis Conrad 1849
Anadara lienosa Say 1832
†Anadara magnoliana Gardner 1943
†Anadara protracta Rogers and Rogers 1837
G. Callocardia Adams 1864
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Subg. Calliocardia (Agriopoma) Dall 1902 [venus]
Subg. †Callocardia (Agriopoma)
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†Callocardia (Agriopoma) castoriana Gardner 1943
†Callocardia (Agriopoma) sayana Conrad 1833
G. Mactra Linnaeus 1767
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Fm. Turritellidae Lovén 1847 [turret shell]
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G. Turritella Lamarck 1799 [turret shell]
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Subg. †Turritella (Torculoidella) Sacco 1895
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†Turritella (Torculoidella) duplinensis Gardner and Aldrich 1919
†Turritella pilsbryi Gardner 1928
Fm. Lucinidae Fleming 1828
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G. Ctena Mörch 1860
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†Ctena magnoliana Dall 1903
†Ctena microimbricata Gardner 1943
†Ctena speciosa Rogers and Rogers 1837
Invalid names: Jagonia Recluz 1869 [synonym]
G. Phacoides Blainville 1825
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Subg. Phacoides (Cardiolucina) Sacco 1901
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†Phacoides (Cardiolucina) postalveatus Gardner 1943
Phacoides (Cardiolucina) trisulcatus Conrad 1841
Fm. Nassariidae Iredale 1916
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G. Ilyanassa Stimpson 1865
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†Ilyanassa granifera Conrad 1868
†Ilyanassa harpuloides Conrad 1844
†Ilyanassa irrorata Conrad 1863
†Ilyanassa isogramma Dall 1892
†Ilyanassa johnsoni Dall 1892
Ilyanassa obsoleta Say 1822
†Ilyanassa scalaspira Conrad 1868
†Ilyanassa schizopyga Dall 1892
†Ilyanassa sexdentata Conrad 1843
†Ilyanassa wilmingtonensis Gardner 1943
Fm. Naticidae Guilding 1834 [moon snail]
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Fm. Pectinidae Wilkes 1810 [scallop]
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G. Chlamys Röding 1798
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Subg. Chlamys (Aequipecten) Fischer 1886 [scallop]
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†Chlamys (Aequipecten) comparilis Tuomey and Holmes 1855
†Chlamys (Aequipecten) eborea Conrad 1833
Subg. †Chlamys (Lyropecten) Conrad 1862
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†Chlamys (Lyropecten) ernestsmithi Tucker 1931
†Chlamys (Lyropecten) madisonia Say 1824
†Chlamys (Lyropecten) planicosta Gardner 1943
Subg. Chlamys (Placopecten) Verrill 1897
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†Chlamys (Placopecten) clintonius Say 1824
†Chlamys (Placopecten) marylandica Wagner 1839
†Chlamys (Placopecten) virginiana Conrad 1840
†Chlamys decemnarius Conrad 1834
G. Pecten Müller 1776
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Fm. Tellinidae Blainville 1814 [tellin clam]
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G. Tellina Linnaeus 1758
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Subg. Tellina (Moerella) Fischer 1887
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†Tellina (Moerella) calpix Gardner 1943
†Tellina (Moerella) declivis Conrad 1834
†Tellina (Moerella) dupliniana Dall 1900
†Tellina (Moerella) macilenta Dall 1900
Tellina (Moerella) sayi Dall 1900
†Tellina (Moerella) verdevilla Gardner 1943
†Tellina egena Conrad 1834
Fm. Veneridae Rafinesque 1815 [venus clam]
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Subfm. Gemminae Dall 1902
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G. Gemma Deshayes 1853
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†Gemma cravenensis Gardner 1943
†Gemma magna Dall 1903
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†Gemma magna insulcata Gardner 1943
†Gemma magna majorina Gardner 1943
†Gemma magna virginiana Dall 1903
†Gemma verdevilla Gardner 1943
Subfm. Meretricinae Gray 1847
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G. Macrocallista Meek 1876
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Subg. Macrocallista (Costacallista) Palmer 1926
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†Macrocallista (Costacallista) emmonsi Gardner 1943
Subfm. Venerinae Rafinesque 1815
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G. Chione von Mühlfield 1811
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Subg. †Chione (Chione) von Mühlfield 1811
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†Chione (Chione) cortinaria Rogers and Rogers 1847
†Chione (Chione) cribraria Conrad 1843
G. Venus Linnaeus 1758
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Subg. Venus (Mercenaria) Schumacher 1817 [quahog]
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†Venus (Mercenaria) berryi Gardner 1943
Venus (Mercenaria) campechiensis Gmelin 1791
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†Venus (Mercenaria) campechiensis carolinensis Conrad 1875
†Venus (Mercenaria) campechiensis rileyi Conrad 1838
†Venus (Mercenaria) campechiensis tridacnoides Lamarck 1818
†Venus (Mercenaria) plena Conrad 1869
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†Venus (Mercenaria) plena inflata Dall 1903
†Venus (Mercenaria) plena nucea Dall 1903