Pirumella cookii
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cookii (Bolli, 1974, p.856, pl.6, figs.9–12; pl.18, figs.3–9; pl.23, fig.6) Lentin and Williams, 1993, p.517. Holotype: Bolli, 1974, pl.6, fig.9; pl.23, fig.6. Originally Pithonella, subsequently Obliquipithonella, thirdly Orthopithonella (combination not validly published), fourthly (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: Coniacian–Santonian.
Parent: Pirumella