1994 Eovidrioceras inexpectans.-Boardman,Work,Mapes & Barrick: 54, fig.23E,26B, pl.1 fig.17,21.

Species based on holotype only, partly fragmentary.

Holotype SUI 55406

Asymmetrically arcuate, bluntly pointed prongs of the ventral lobe and a broadly tridentate, incompletely subdivided lateral lobe. The internal lateral lobe is incipiently trifid with a high crest of the third internal lateral saddle (I1/I2(d)) and nondigitate 12 elements.