Hystrichosphaeridium pterophorum
From dinoflaj3
"pterophorum" Deflandre and Courteville, 1939, p.102, pl.2, figs.4–5. Holotype: Deflandre and Courteville, 1939, pl.2, figs.4–5. NOW Dinopterygium. Originally Hystrichosphaeridium, subsequently Cymatiosphaera (Appendix A), thirdly Oodnadattia, fourthly (and now) Dinopterygium. Age: Senonian.
Parent: Hystrichosphaeridium