Dinogymnium lanceolatum

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"lanceolatum" May, 1977, p.115, pl.2, figs.9–10.  Holotype: May, 1977, pl.2, figs.9–10; Lentin and Vozzhennikova, 1990, Appendix A, fig.41.  NOW Yolkinigymnium.  Originally Dinogymnium, subsequently (and now) Yolkinigymnium.  Age: late Campanian–early Maastrichtian.

Parent: Dinogymnium