Impletosphaeridium cingulatum

cingulatum (Grigorovich, 1971, p.94, pl.2, fig.1) Stover and Evitt, 1978, p.232–233.  Holotype: Grigorovich, 1971, pl.2, fig.1; Fensome et al., 1993a, fig.1 — p.1059.  Originally Ciliosphaeridium, subsequently (and now) Impletosphaeridium.  Age: Paleocene.

Parent: Impletosphaeridium