Hystrichosphaeridium pseudohystrichodinium ssp. magnum W. Wetzel, 1955

Now Coronifera oceanica ssp. magna. Originally Hystrichosphaeridium pseudhystrichodinium ssp. magnum, subsequently Baltisphaeridium pseudhystrichodinium ssp. magnum, thirdly (and now) Coronifera oceanica ssp. magna, fourthly Coronifera pedata ssp. magna.
Holotype: W. Wetzel, 1955, fig.9; Sarjeant, 1984, pl.5, figs.4-5, text-fig.ll[A-B]; Fensome et al., 1991, p.663, figs.1-3, p.697, fig.1
Age: Paleocene