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Genus: Arctotis Bodylevsky, 1960 † (DB: 2 SP)
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Arctotis cretacea
(Felix, 1890 †) (FOSSIL)
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Arctotis filisculptus
Kauffman 1976 † (FOSSIL)
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Genus: Jianchuania Chen & Chen, 1980 † (DB: 1 SP)
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Jianchuania problematica
(C. Chen, 1976 †) (FOSSIL)
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Genus: Maccoyella Etheridge, 1892 † (DB: 2 SP)
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Maccoyella corbiensis
(Moore, 1870 †) (FOSSIL)
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Maccoyella reflecta
(Moore, 1870 †) (FOSSIL)
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Genus: Meleagrinella Whitfield, 1855 † (DB: 12 SP)
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Meleagrinella boehmi
Korchinskaya, 1980 † (FOSSIL)
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Meleagrinella braamburiensis
(B. Phillips †) (FOSSIL)
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Meleagrinella echinata
(Smith 1817 †) (FOSSIL)
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Meleagrinella ferniensis
McLearn, 1924 † (FOSSIL)
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Meleagrinella lycetti
(Rollier, 1914 †) (FOSSIL)
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Meleagrinella mclearni
McRoberts, 2011 † (FOSSIL)
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Meleagrinella omolonensis
Bytschkov, 1976 † (FOSSIL)
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Meleagrinella ovalis
(B. Phillips, 1829 †) (FOSSIL)
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Meleagrinella oxytomaeformis
Polubotko, 1968 † (FOSSIL)
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Meleagrinella polaris
E.A.L. Kittl, 1907 † (FOSSIL)
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Meleagrinella substriata
(Münster, 1831 †) (FOSSIL)
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Meleagrinella tasaryensis
Voronetz, 1936 † (FOSSIL)
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Genus: Oxytoma Meek, 1864 † (DB: 15 SP)
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Oxytoma bifurcata
Fan, 1963 † (FOSSIL)
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Oxytoma camselli
McLearn, 1931 † (FOSSIL)
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Oxytoma costatum
(Townsend, 1813 †) (FOSSIL)
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Oxytoma czekanowskii
Teller, 1886 † (FOSSIL)
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Oxytoma grantsvillensis
Waller 2005 † (FOSSIL)
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Oxytoma hargrovei
Marincovich Jr., 1993 † (FOSSIL)
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Oxytoma inequivalvis
(J. de C. Sowerby, 1819 †) (FOSSIL)
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Oxytoma kiparisovae
Tozer, 1961 † (FOSSIL)
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Oxytoma kobayashii
I. Hayami, 1959 † (FOSSIL)
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Oxytoma mojsisovicsi
Teller, 1886 † (FOSSIL)
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Oxytoma nebrascana
(J. Evans & Shumard, 1857 †) (FOSSIL)
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Oxytoma octavia
(A.V.M.D. D'Orbigny, 1850 †) (FOSSIL)
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Oxytoma okunevae
Milova, 1985 † (FOSSIL)
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Oxytoma tenuicostata
(F.A. Roemer, 1841 †) (FOSSIL)
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Oxytoma wyomingensis
Stanton, 1899 † (FOSSIL)
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Subgenus: Oxytoma (Palmoxytoma) Cox, 1962 † (DB: 2 SP)
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Oxytoma (Palmoxytoma) cygnipes
(A.T. Young & Bird, 1822 †) (FOSSIL)
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Oxytoma (Palmoxytoma) longicostata
(Stutchbury 1839) † (FOSSIL)
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