Peridinium schizokeras Appendix B
From dinoflaj3
"schizokeras" de Coninck, 1975, p.97, pl.17, figs.16–17. Holotype: de Coninck, 1975, pl.17, figs.16–17. NOW Phthanoperidinium?. Originally Peridinium, subsequently Phthanoperidinium, thirdly (and now) Phthanoperidinium?. Age: early Eocene (Ypresian).
Parent: Peridinium_Appendix B