Colchidites longicostatus (FOSSIL) Kakabadze, 1971 †
Hamiticeras longum (FOSSIL) Kakabadze & Hoedemaeker,2004 †
Tropaeum longum (FOSSIL) Kakabadze, 1981 †
Colchidites longus (FOSSIL) Rouchadze, 1933 †
Australotropaeum magnum (FOSSIL) Aguirre-Urreta, 1985 †
Acrioceras maheswariae (FOSSIL) Sarkar, 1955 †
Acrioceras maioense (FOSSIL) (Stahlecker, 1935 †)
Ancyloceras mantelli (FOSSIL) T.L. Casey, 1960 †
Pseudocrioceras massei (FOSSIL) Ropolo & Gonnet, 1999 †
Ancyloceras matheronianum (FOSSIL) A.V.M.D. D'Orbigny,1842 †
Acrioceras meriani (FOSSIL) (Ooster, 1860 †)
Pseudocrioceras mickali (FOSSIL) Ropolo & Gonnet, 1999 †
Lithancylus mirabilis (FOSSIL) (F.M. Anderson, 1938 †)
Toxancyloceras mojsisovicsi (FOSSIL) (Haug, 1889 †)
Audouliceras mordovense (FOSSIL) Stenshin, Shumilkin& Uspensky, 2014 †
Paraspinoceras morloti (FOSSIL) (Ooster, 1860 †)
Australiceras mozambiquense (FOSSIL) (Krenkel, 1910 †)
Acrioceras muckleae (FOSSIL) Sarkar, 1955 †
Tropaeum multicingulatum (FOSSIL) (A. von Koenen, 1902 †)
Pedioceras multicostatum (FOSSIL) Kakabadze & Hoedemaeker,2004 †
Colchidites multicostatus (FOSSIL) Kakabadze, 1971 †
Colchidites multifurcatus (FOSSIL) Renngarten, 1951 †
Tonohamites multituberculatus (FOSSIL) Immel & Guoxiong, 2002 †
Ancyloceras munieri (FOSSIL) Reynes, 1876 †
Toxoceratoides nagerai (FOSSIL) (H.A. Leanza, 1970 †)
Colchidites naltschikensis (FOSSIL) Renngarten, 1951 †
Lithancylus nauplius (FOSSIL) (F.M. Anderson, 1938 †)
Lithancylus neleus (FOSSIL) (F.M. Anderson, 1938 †)
Kutatissites niongalense (FOSSIL) Krenkel, 1910 †
Helicancylus nodosus (FOSSIL) F.M. Anderson, 1902 †
Ancyloceras nodulosum (FOSSIL) A. von Koenen, 1902 †
Nonyaniceras nonyani (FOSSIL) Klinger & J. Kennedy,1977 †
Tropaeum obesum (FOSSIL) Klinger & J. Kennedy,1977 †
Toxoceratoides obliquatus (FOSSIL) (A.T. Young & Bird,1928 †)
Ancyloceras obovatum (FOSSIL) A. von Koenen, 1902 †