Cordosphaeridium tiara

"tiara" (Klumpp, 1953, p.390–391, pl.17, figs.8–10) Morgenroth, 1966a, p.25.  Holotype: Klumpp, 1953, pl.17, figs.8–9.  NOW Operculodinium.  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cordosphaeridium, fourthly Cleistosphaeridium, fifthly (and now) Operculodinium.  N.I.A.  Age: Eocene.

Parent: Cordosphaeridium

Infrataxon List:

"Cordosphaeridium tiara subsp. centrocarpum"
"Cordosphaeridium tiara subsp. tiara"