Peridinium schizokeras Appendix B
From dinoflaj2
"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