2002  Umbosporadoceras Becker: 181.

Type Species: Umbosporadoceras krusati Becker, 2002, p.182 [OD].

A:   Open umbilicus throughout ontogeny, aperture rather low, whorls slowly expanding.
G:   First adventitious lobe lobe pointed, second adventitious lobe shallow to small rounded .
Sutural formula: E A2 A1 L U I.

Only holotype known; the only available specimen, without knowledge of locality. Generic independency questionable, cross section not available, characterization uncertain.