Hystrichosphaeridium recurvatum var. parvum

"var. parvum" Rozen, 1965, p.303-304, pl.4, fig.6; text-fig.13.  Holotype: Rozen, 1965, pl.4, fig.6; text-fig.13.  NOW Hystrichosphaeridium recurvatum subsp. parvum.  Originally Hystrichosphaeridium recurvatum var. parvum, subsequently (and now) Hystrichosphaeridium recurvatum subsp. parvum, thirdly Hystrichosphaeridium palmatum subsp. parvum (combination illegitimate), fourthly Hystrichosphaeridium duplum subsp. parvum (combination illegitimate).  Age: Late Eocene. Parent: Hystrichosphaeridium recurvatum