Trigonostoma gofasi A. Verhecken, 2007
Trigonostoma goniostoma (G.B. I Sowerby, 1832)
Trigonostoma harasewychi (FOSSIL) E.J. Petuch, 1994 †
Trigonostoma imbricatum (FOSSIL) (R. Hoernes, 1856 †)
Trigonostoma indicum (FOSSIL) E.W. Vredenburg, 1925 †
Trigonostoma iota T.A. Garrard, 1975
Trigonostoma kilburni R.E. Petit& M.G. Harasewych, 2000
Trigonostoma lamberti S.M. Souverbie, 1870
Trigonostoma laseroni (T. Iredale, 1936)
Trigonostoma leopoldinae (FOSSIL) R. Tournouer, 1876 †
Trigonostoma limatum (FOSSIL) M. Yokoyama, 1928 †
Trigonostoma lindeni (FOSSIL) A.W. Janssen, 1984 †
Trigonostoma milleri J.Q. Burch, 1949
Trigonostoma mistense (FOSSIL) A.W. Janssen, 1984 †
Trigonostoma mozambicense R.E. Petit& M.G. Harasewych, 2002
Trigonostoma nitidum (A. Adams, 1855)
Trigonostoma panones (FOSSIL) G.F. Harris, 1902 †
Trigonostoma parvotriangula (FOSSIL) (F. Sacco, 1894 †)
Trigonostoma perspectiva (FOSSIL) T.A. Conrad, 1834 †
Trigonostoma planispirum (P. Nyst, 1845 )
Trigonostoma pluricostata F. Kautsky, 1925
Trigonostoma pouwi (FOSSIL) A.W. Janssen, 1984 †
Trigonostoma protrigonostoma F. Sacco, 1894
Trigonostoma pseudumbilicare (FOSSIL) M.A. Peyrot, 1925 †
Trigonostoma puschi (FOSSIL) (R. Hoernes & M. Auinger,1891 †)
Trigonostoma pygmaeum (C.B. Adams, 1852)
Trigonostoma ripleyana (FOSSIL) N.F. Sohl, 1964 †
Trigonostoma scala (J.F. Gmelin, 1791)
Trigonostoma scalare (J.F. Gmelin, 1791)
Trigonostoma scrobiculatum (FOSSIL) (R. Hoernes, 1856 †)
Trigonostoma semidisjunctum (G.B. II Sowerby, 1849)
Trigonostoma sericea (FOSSIL) (W.H. Dall, 1892 †)
Trigonostoma speciosum (FOSSIL) E.W. Vredenburg, 1921 †
Trigonostoma spiniferum (FOSSIL) (J.P.S. Grateloup,1832 †)
Trigonostoma tampaensis (FOSSIL) R.E. Petit, 1967 †