Tarrantoceras lillianense (FOSSIL) (Adkins 1928 †)
Mantelliceras lymense (FOSSIL) (Spath, 1926 †) Algeria
Mantelliceras mantelli (FOSSIL) (J. de C. Sowerby,1814 †) France, Cher125 mm
Euomphaloceras merewetheri (FOSSIL) Cobban, Hook& J. Kennedy, 1989 † USA, New Mexico
Romaniceras mexicanum (FOSSIL) Jones, 1938 † Mexico, Chihuahua, Coyame del Sotol
Sharpeiceras mexicanum (FOSSIL) Bose, 1928 † Angola, Cuanza Sul, Sumbe
Buccinammonites minimus (FOSSIL) J. Kennedy & Cobban,1990 † United States, Montana, Carter
Sharpeiceras minor (FOSSIL) J. Kennedy, Klinger& Lehmann, 2015 † South Africa
Neocardioceras minutum (FOSSIL) Cobban, 1988 † Texas, Grayson County
Paraburoceras minutum (FOSSIL) Cobban, Hook& J. Kennedy, 1989 †
Cryptometoicoceras mite (FOSSIL) J. Kennedy & Cobban,1990 † United States, Wyoming, Weston
Sharpeiceras mocambiquense (FOSSIL) Choffat, 1903 † Madagascar
Mammites mohavanensis (FOSSIL) Böse, 1923 † Mexico, Coahuila, Sierra Mojada
Paramammites mohovanensis (FOSSIL) (Böse, 1920 †)
Metoicoceras mosbyense (FOSSIL) Cobban, 1953 † Texas, Grayson County
Benueites mosquerae (FOSSIL) (D.L.G. Karsten, 1886 †) Venezuela, Trujillo
Acanthoceras muldoonense (FOSSIL) Cobban & P.H. Scott,1973 †
Tarrantoceras multicostatum (FOSSIL) (Adkins, 1928 †) USA, New Mexico
Mammites mutabilis (FOSSIL) Reyment, 1955 † Cameroon, Sud-Ouest, Fako
Nannometoicoceras nanos (FOSSIL) J. Kennedy & Cobban,1990 † USA, Montana, Carter
Calycoceras naviculare (FOSSIL) (Mantell, 1822 †) France, Calais160 mm
Pseudovascoceras nigeriense (FOSSIL) (Woods, 1911 †) Brazil, Sergipe, Japaratuba
Mammites nodosoides (FOSSIL) (F. Schlüter, 1871 †) Morocco, cap Cantin320 mm
Cunningtoniceras novimexicanum (FOSSIL) Cobban, Hook& J. Kennedy, 1989 † Texas, Grayson County
Jeanrogericeras obliquus (FOSSIL) (Karrenberg, 1935 †) Morocco80 mm
Watinoceras odonnelli (FOSSIL) Cobban, Hook& J. Kennedy, 1989 † USA, New Mexico
Acanthoceras offarcinatum (FOSSIL) White, 1887 † Brazil, Sergipe
Calycoceras orientale (FOSSIL) E. Matsumoto & al.,1957 † Hokkaido
Newboldiceras orientale (FOSSIL) Thomel 1972 †
Yubariceras ornatissimum (FOSSIL) (F. Stoliczka, 1864 †) France, Loire120 mm
Yubariceras otatumei (FOSSIL) (E. Matsumoto, H. Saito& Fukada, 1957 †) Hokkaido
Jeanrogericeras pachycostatus (FOSSIL) Summesberger, 1992 † Austria, Oberösterreich, Steyr Land
Pseudaspidoceras paganum (FOSSIL) Reyment, 1954 † Gabon
Dunveganoceras parvum (FOSSIL) Cobban, 1953 † USA, Montana, Petroleum
Acanthoceras peltoceroides (FOSSIL) Pavlow & Lamplugh, 1892 † UK, England, North Yorkshire