Nyktericysta pentagonum

pentagonum (Singh, 1983, p.128-129, pl.44, figs.2-3) Bint, 1986, p.149. Holotype: Singh, 1983, pl.44, fig.2. Originally Endoceratium, subsequently (and now) Nyktericysta. N.I.A. Age: Mid Cenomanian.