Pirumella bilamellata

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