Hystrichosphaeridium floripes subsp. breviradiatum

"subsp. breviradiatum" Cookson and Eisenack, 1961b, p.44, pl.2, figs.10-11.  Holotype: Cookson and Eisenack, 1961b, pl.2, figs.10-11.  NOW Homotryblium floripes subsp. breviradiatum.  Originally Hystrichosphaeridium floripes subsp. breviradiatum, subsequently Cordosphaeridium floripes subsp. breviradiatum, thirdly (and now) Homotryblium floripes subsp. breviradiatum.  Age: Late Eocene. Parent: Hystrichosphaeridium floripes