Hystrichodinium pulchrum subsp. densispinum

subsp. densispinum (Deflandre, 1936a, p.183–184, pl.9, fig.3) Lentin and Williams, 1973, p.70.  Holotype: Deflandre, 1936a, pl.9, fig.3.  Originally Hystrichodinium pulchrum var. densispinum, subsequently (and now) Hystrichodinium pulchrum subsp. densispinum.  Age: Senonian.

Parent: Hystrichodinium pulchrum