Elobiceras lobitoense (FOSSIL) Spath, 1922 †
Mortoniceras lowrii (FOSSIL) McLearn, 1972 †
Venezoliceras madagascariense (FOSSIL) (M. Collignon, 1951 †)
Brancoceras magneti (FOSSIL) M. Collignon, 1949 †
Neokentroceras magnum (FOSSIL) F. Haas, 1942 †
Mortoniceras margaritata (FOSSIL) F. Haas 1942 †
Mortoniceras maroimensis (FOSSIL) (White, 1887 †)
Mortoniceras marrecasia (FOSSIL) C.J. Maury 1936 †
Cantabrigites minor (FOSSIL) (Spath 1933 †)
Deiradoceras mokarahaense (FOSSIL) (M. Collignon, 1951 †)
Mortoniceras montraynaudensis (FOSSIL) F. Haas 1942 †
Mortoniceras multicostata (FOSSIL) Van Hoepen, 1942 †
Brancoceras multicostatum (FOSSIL) J. Kennedy, 2004 †
Erioliceras mutabilis (FOSSIL) (Van Hoepen, 1955 †)
Mortoniceras nanum (FOSSIL) Spath, 1933 †
Euhystrichoceras nicaisei (FOSSIL) (Coquand, 1862 †)
Rusoceras nothum (FOSSIL) van Hoepen, 1946 †
Euhystrichoceras occidentale (FOSSIL) Reyment, 1955 †
Hysteroceras orbignyi (FOSSIL) Spath, 1922 †
Mortoniceras ornatum (FOSSIL) van Hoepen, 1944 †
Manuaniceras ornatus (FOSSIL) Besairie, 1936 †
Elobiceras oxytropidoceratoides (FOSSIL) F. Haas, 1942 †
Mortoniceras pachys (FOSSIL) (Seeley, 1865 †)
Brancoceras paronai (FOSSIL) M. Collignon, 1949 †
Adkinsites paucituberculatus (FOSSIL) M. Collignon, 1936 †
Boeseites perarmata (FOSSIL) F. Haas, 1942 †
Subschloenbachia perinflatum (FOSSIL) Spath, 1922 †
Oxytropidoceras peruvianum (FOSSIL) (von Buch, 1839 †)
Mortoniceras potternense (FOSSIL) Spath, 1932 †
Oxytropidoceras powelli (FOSSIL) A.T. Young †
Deiradoceras prerostratum (FOSSIL) (Spath, 1921 †)
Mortoniceras pricei (FOSSIL) Spath, 1922 †
Elobiceras primordiale (FOSSIL) F. Haas, 1942 †
Hysteroceras propinquum (FOSSIL) F. Haas, 1942 †
Goodhallites propinquus (FOSSIL) (Stolickza, 1863 †)