Hystrichosphaeridium hirsutum subsp. amplum
From dinoflaj2
"subsp. amplum" Wetzel, 1955, p.38; text-fig.11. Emendation: Sarjeant, 1984c, p.131, as Operculodinium centrocarpum subsp. amplum. Holotype: Wetzel, 1955, text-fig.11; Sarjeant, 1984c, pl.3, figs.1-3; text-fig.4. Name not validly published: species name not validly published. NOW Operculodinium centrocarpum subsp. amplum. Originally Hystrichosphaeridium hirsutum subsp. amplum (name not validly published), subsequently Baltisphaeridium hirsutum subsp. amplum (name not validly published; Appendix A), thirdly Operculodinium? hirsutum subsp. amplum (name not validly published), fourthly (and now) Operculodinium centrocarpum subsp. amplum. Age: Danian. Parent: Hystrichosphaeridium hirsutum