Obliquipithonella bilamellata

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"bilamellata" (Pflaumann and Krasheninnikov, 1978, p.822, pl.5, figs.5,6a-d; pl.6, figs.1a-b,2a-b) Lentin and Williams, 1985, p.380.  Holotype: Pflaumann and Krasheninnikov, 1978, pl.5, figs.6a-d.  NOW Pirumella.  Originally Pithonella, subsequently Obliquipithonella, thirdly (and now) Pirumella.  Age: Campanian-Early Maastrichtian.

Parent: Obliquipithonella