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