Geological Time: Carboniferous
the image is published in the source mentioned below
View of a specimen of Ademassa inuncta Vachard in Vachard, Massa & Strank, 1993
The identification is based upon:
, : Vachard, D., Massa, D., Strank, A. (1993). The Carboniferous of Al-37 borehole, Cyrenaica, Libya. Biostratigraphical analysis and paleogeographic implications [Le Carbonifère du sondage Al-37 (Cyrénaique, Libye). Analyse biostratigraphique, conséquences paléogéographiques]. Revue de Micropaléontologie. 36(2): 165-186. Plate , Fig.