Pirumella bilamellata
From dinoflaj2
bilamellata (Pflaumann and Krasheninnikov, 1978, p.822, pl.5, figs.5,6a-d, pl.6, figs.1a-b,2a-b) Lentin and Williams, 1993, p.517. Holotype: Pflaumann and Krasheninnikov, 1978, pl.5, figs.6a-d. Originally Pithonella, subsequently Obliquipithonella, thirdly (and now) Pirumella. Willems (1992, p.160) considered Pithonella (as Obliquipithonella, now Pirumella) krasheninnikovii to be the possible taxonomic senior synonym of this species. Age: Campanian-Early Maastrichtian.
Parent: Pirumella
