pars 1923  Protoxyclymenia Schindewolf: 63.
pars 1929  Protoxyclymenia.- Lange: 120.
pars 1957  Protoxyclymenia.- Treatise: L44.
pars 1960  Protoxyclymenia.- Ruzhentsev: 244.
pars 1962  Protoxyclymenia.- Osnovy: 408.
     1987  Protoxyclymenia (Protoxyclymenia) Korn & Price: 13.
     1989  Eokosmoclymenia Czarnocki: 70.
  
Type species: Clymenia dunkeri Münster, 1839, p. 15.

A:  Conch form discoidal; venter usually broadly rounded; flanks
convex, umbilicus moderately wide to wide.
B:  Fine growth lines with prorsiradiate direction and biconvex
course; weak ventrolateral salient; deep external sinus; with
ventral band.
C:  No ribs; 50 to 100 small median parabolic spines on ventral
band.
D:  Usually no constrictions.
G:  Lateral lobe asymmetric with vertical ventral flank.

[Eokosmoceras differs in minor details of growth lines, regarded
herein as of specific significance only].