Pirumella amplicrystallina
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amplicrystallina (Pflaumann and Krasheninnikov, 1978, p.820, pl.3, figs.4a-c,5a-d,6a-d - not 7a-d) Lentin and Williams, 1993, p.517. Holotype: Pflaumann and Krasheninnikov, 1978, pl.3, figs.5a-c. Originally Pithonella, subsequently Obliquipithonella, thirdly (and now) Pirumella. Age: Maastrichtian.
Parent: Pirumella