Hystrichosphaeridium asterium

"asterium" Eaton, 1976, p.273, pl.11, figs.7–10.  Holotype: Eaton, 1976, pl.11, figs.7–8.  NOW Melitasphaeridium.  Originally Hystrichosphaeridium, subsequently (and now) Melitasphaeridium.  Age: middle Eocene (see Aubry, 1986).

Parent: Hystrichosphaeridium