Holotype MB.C.29202.1, illustrated by Korn et al., 2020, text-fig. 4d.

2020 Goniatites abaiensis: Korn et al., p. 991, text-figs. 4d, 5c

Shell thickly discoidal at dm = 50 mm (ww/dm = 0.50), umbilicus very narrow

(uw/dm = 0.05). Aperture low (WER = 1.60) at dm = 50 mm.

At dm = 36 mm external lobe very narrow or narrow (0.55 of the external lobe depth; 1.25 of the ventrolateral saddle width), and low median saddle (0.33 of the external lobe depth). External lobe weakly Y-shaped with very narrow, V-shaped prongs, ventrolateral saddle acute.