Hystrichosphaeridium pterophorum
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"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