1934  Homoceratinae Spath: 15.
     1960  Homoceratinae.- Ruzhentsev: 213.
     1962  Homoceratinae.- Kullmann: 14.
     1962  Homoceratinae.- Kullmann: 77.
     1962  Homoceratinae.- Osnovy: 376.
     2001  Homoceratinae.- Titus & Manger: 20.

Family Homoceratidae SPATH, 1934:

A:   Conch form discoidal to globose, moderately involute. Umbilicus moderately wide to narrow. Tendency towards oxycone venter.
B-C: More or less prominent transversal ornamentation frequently present; course of growth striae or lamellae variable, but always forming ventral sinus. Spiral ornamentation rare and mostly restricted to umbilical shoulder. Umbilical tubercles in advanced forms.
G:   Ventral lobe relatively wide, with sigmoidal or roundedly diverging sides; median saddle fairly high. First lateral saddle broadly rounded. Adventitious lobe pointed, mostly with straight sides, rarely bell-shaped or rounded.

Subfamily Homoceratinae SPATH, 1934:

A: Commonly early whorls evolute, with wide and low section and sharp umbilical shoulder ("calyx" stage).
B-C: Transversal ornamentation rarely coarse, usually lamellate, frequently dichotomizing, forming a ventral sinus on adult stages.
F:   No reticulate ornamentation.

[Homoceratidae,
Ruzhentsev & Bogoslovskaia, 1978, p.188] Conch of early specimens sphaeroconic or cadiconic to pachyconic, adults mainly oxyconic, rarely pachyconic or subdiscoidal. Whorls moderately to completely involute, in some cases even hanging over previous whorl. Umbilicus moderately wide to very narrow. Transversal sculpture consisting of coarse lamellae or ribs, not rarely dichotomized, at adult conchs with ventral sinus. Very rare are lirae, and if preasent, only around the umbilicus. On early and middle whorls sometimes weak umnbonal tubercles, but also intraventral ridges (one to three) can be obsereved. Ventral lobe fairly wide (wl/hl > 1), median saddle fairly high (= 0.6 - 0.8).

Titus & Manger, 2001, p.20: Strongly oxyconic adults.