Yolkinigymnium elongatum
From dinoflaj3
elongatum (May, 1977, p.112,114, pl.2, figs.11–12) Lentin and Vozzhennikova, 1990, p.31. Holotype: May, 1977, pl.2, figs.11–12; Lentin and Vozzhennikova, 1990, Appendix, A, fig.42. Originally Dinogymnium, subsequently (and now) Yolkinigymnium. Age: late Campanian–early Maastrichtian.
Parent: Yolkinigymnium