1884  Nomismoceras Hyatt: 330.
     1897  Nomismoceras.-Crick, Smith & Foord: 212.
     1918  Nomismoceras.- Wedekind: 140.
     1925  Nomismoceras.- Schmidt: 555.
     1940  Nomismoceras.- Delepine: 83.
     1957  Nomismoceras.- Treatise: L60.
     1960  Nomismoceras.- Ruzhencev: 202.
     1962  Nomismoceras.- Osnovy: 367.
     1963  Nomismoceras.- Nicolaus: 126.
     1965  Nomismoceras.- Gordon: 24.7
     1971  Nomismoceras.- Ruzhentsev & Bogoslovskaia: 162.
     1996  Nomismoceras.- Riley: 30.
     2008  Nomismoceras.-Nikolaeva: 32.

Type species: Nomismoceras spirorbis Phillips, 1836, p.237. [SD by Foord & Crick, 1897, p.212].

A:   Conch form discoidal or lenticular, venter rounded; adult stage may be flattened. Umbilicus extremely wide
to moderately wide.
B:   Ornamentation fine or coarse, prorsiradiate, biconvex and with long ventrolateral salient.
D-E: Ventro-lateral grooves and constrictions may be present.
F:   No spiral ornamentation.
G:   Ventral lobe relatively wide and V-shaped, with low median saddle; adventitious lobe symmetrical and deep,
usually rounded.