Polysphaeridium pseudocolligerum

"pseudocolligerum" Stover, 1977, p.74–75, pl.1, figs.14–19.  Holotype: Stover, 1977, pl.1, figs.14–16.  NOW Dapsilidinium.  Originally Polysphaeridium, subsequently (and now) Dapsilidinium.  Taxonomic senior synoym: Polysphaeridium (now Dapsilidinium) pastielsii according to Mertens et al. (2014, p.532) — however, Fensome et al., in press, retained Dapsilidinium pseudocolligerum as a separate species.  Age: early Oligocene–early Miocene.

Parent: Polysphaeridium