Hystrichosphaeridium patulum

patulum Davey and Williams, 1966b, p.60, pl.10, fig.5.  Holotype: Davey and Williams, 1966b, pl.10, fig.5.  Age: early Eocene.

Parent: Hystrichosphaeridium

Infrataxon List:

Hystrichosphaeridium patulum subsp. majus
Hystrichosphaeridium patulum subsp. patulum