Bellerophon lenticularis (FOSSIL) Moberg & Grönwall, 1909 †
Cymbularia lenticularis (FOSSIL) E.F.R.K. Koken, 1897 †
Bellerophon lineatus (FOSSIL) Dechen, 1832 †
Waagenella lineatus (FOSSIL) E.L. Yochelson, 1960 †
Bucanopsis lirata (FOSSIL) H.S. Ladd, 1925 †
Bellerophon livengoodensis (FOSSIL) Blodgett, 1992 †
Bellerophon lohestoe (FOSSIL) de Koninck, 1883 †
Bellerophon macromphalus (FOSSIL) A. Römer, 1843 †
Bellerophon macrostoma (FOSSIL) A. Römer, 1843 †
Aglaoglypta maera (FOSSIL) (J.W. Hall, 1876 †)
Bellerophon majusculus (FOSSIL) Walcott, 1884 †
Bellerophon mansfieldianus (FOSSIL) Girty, 1927 †
Joleaudella mansuyi (FOSSIL) Patte, 1929 †
Sorobanobaca matsumotoi (FOSSIL) Nishida, 1969 †
Bellerophon maximus (FOSSIL) Weir, 1931 †
Waagenella meeki (FOSSIL) de Koninck, 1883 †
Pharkidonotus megalius (FOSSIL) B.S. Kues, 1987 †
Waagenella menardensis (FOSSIL) Thein & Nitecki, 1974 †
Cymbularia merita (FOSSIL) Reed, 1921 †
Waagenella microstriata (FOSSIL) P.A. Maxwell, 1961 †
Bellerophon miser (FOSSIL) Billings, 1865 †
Sphenosphaera mohri (FOSSIL) (Miller, 1874 †)
Bellerophon monensis (FOSSIL) Weir, 1931 †
Bellerophon mongoliensis (FOSSIL) A.W. Grabau, 1931 †
Sphaerocyclus morganianus (FOSSIL) (Hartt & Rathbun, 1875 †)
Waagenella munsteri (FOSSIL) (A.E.J. Férussac& A.V.M.D. D'Orbigny, 1840 †)
Bellerophon murchisoni (FOSSIL) d'Archiac & de Verneuil,1842 †
Aglaoglypta nactoides (FOSSIL) (A.H. Clarke & Swartz,1913 †)
Bellerophon nactus (FOSSIL) J.W. Hall, 1879 †
Sphenosphaera nana (FOSSIL) (Ulrich & Scofield,1897 †)
Bellerophon needlensis (FOSSIL) W.J. Gordon& E.L. Yochelson, 1987 †
Kodymites nestor (FOSSIL) Horný, 1962 †
Bellerophon nevadensis (FOSSIL) Blodgett & Johnson,1992 †
Bellerophon newberryi (FOSSIL) F.B. Meek, 1871 †
Bucanopsis nicoli (FOSSIL) Reed, 1921 †