Hystrichosphaeridium cylindratum Morgenroth 1966a

cylindratum Morgenroth, 1966a, p.30, pl.8, figs.3-4.  Holotype: Morgenroth, 1966a, pl.8, figs.3-4.  Junior homonym: Hystrichosphaeridium cylindratum Brideaux, 1971.  Age: Early Eocene.

Parent: Hystrichosphaeridium