Yolkinigymnium lanceolatum

*lanceolatum (May, 1977, p.115, pl.2, figs.9–10) Lentin and Vozzhennikova, 1990, p.30.  Holotype: May, 1977, pl.2, figs.9–10; Lentin and Vozzhennikova, 1990, Appendix A, fig.41.  Originally Dinogymnium, subsequently (and now) Yolkinigymnium.  Age: late Campanian–early Maastrichtian.

Parent: Yolkinigymnium