Obliquipithonella amplicrystallina

"amplicrystallina" (Pflaumann and Krasheninnikov, 1978, p.820, pl.3, figs.4a–c,5a–d,6a–d (not 7a–d) Lentin and Williams, 1985, p.380.  Holotype: Pflaumann and Krasheninnikov, 1978, pl.3, figs.5a–c.  NOW Pirumella.  Originally Pithonella, subsequently Obliquipithonella, thirdly (and now) Pirumella.  Age: Maastrichtian.

Parent: Obliquipithonella