Hystrichosphaeridium hirsutum

"hirsutum" (Ehrenberg, 1837b, pl.1, figs.10,?13) Deflandre, 1939a, p.78.  Name not validly published: Ehrenberg (1837b) did not intend to introduce a new species.  Originally Xanthidium hirsutum (name not validly published; Appendix A), subsequently Ovum hispidum subsp. hirsutum (name not validly published; Appendix A), thirdly Hystrichosphaera hirsuta (name not validly published), fourthly Hystrichosphaeridium hirsutum (name not validly published), fifthly Baltisphaeridium hirsutum (name not validly published; Appendix A), sixthly Operculodinium hirsutum (name not validly published), seventhly Operculodinium? hirsutum (name not validly published).  See discussion under Operculodinium? hirsutum.  Age: Late Cretaceous.

Parent: Hystrichosphaeridium

Infrataxon List:

"Hystrichosphaeridium hirsutum subsp. amplum"