Babylonella fusiformis nysti (FOSSIL) (R. Hoernes, 1856 †)
Babylonella fusiformis pusilla (FOSSIL) (R.A. Philippi, 1843 †)
Bivetiella gabbiana (FOSSIL) (H.A. Pilsbry & Johnson,1917 †)
Plesiotriton ganensis (FOSSIL) Lesport, Cluzaud& A. Verhecken, 2015 †
Paladmete gardnerae (FOSSIL) B. Wade †
Colubratriton garini (FOSSIL) J.M. Pacaud, Ledon& Loubry, 2015 †
Admetula garrardi R.E. Petit, 1974
Massyla gavilanensis (FOSSIL) B.M. Landau & al., 2012 †
Trigonostoma gemmatum (FOSSIL) T.A. Conrad, 1833 †
Cancellaria gemmulata G.B. I Sowerby, 1832
Gerdiella gerda A.A. Olsson & F.M. Bayer,1973
Trigonostoma geslini (FOSSIL) B. de Basterot, 1825 †
Trigonostoma geslini josephinae A.W. Janssen, 1984
Trigonostoma geslini lateapertum (FOSSIL) M.A. Peyrot, 1925 †
Zeadmete gibbera (FOSSIL) (J. Marwick, 1931 †)
Merica gigantea (Y.C. Lee & T.C. Lan,2002)
Bonellitia girauxi (FOSSIL) A.E.M. Cossmann& G. Pissarro, 1913 †
Admetula gittenbergeri (A. Verhecken, 2002)
Sveltia gladiator R.E. Petit, 1976
Trigonostoma gofasi A. Verhecken, 2007
Nipponaphera goniata P. Bouchet & R.E. Petit,2002
Trigonostoma goniostoma (G.B. I Sowerby, 1832)
Babylonella gracilenta (FOSSIL) (S.V. Wood, 1872 † †)
Admete gracilior (Carpenter in W.M. Gabb,1869)
Cancellaria gracilis R.A. Philippi, 1845
Cancellaria gracilis (FOSSIL) H.F.A. von Ihering,1897 †
Cancellaria gradata (FOSSIL) R. Hoernes, 1856 †
Sydaphera granosa (G.B. I Sowerby, 1832)
Unitas granulata (FOSSIL) (P. Nyst, 1845 †)
Waipaoa grata (FOSSIL) J. Marwick, 1931 †
Massyla gravesae (FOSSIL) E.J. Petuch, 1994 †
Cancellaria guppyi (FOSSIL) W.M. Gabb, 1873 †
Ventrilia gurabis (FOSSIL) C.J. Maury, 1917 †
Sveltella guttoides (FOSSIL) Staadt in Cosmann& Pisarro, 1913 †
Nipponaphera habei R.E. Petit, 1972