Pirumella strobila
From dinoflaj3
strobila (Keupp, 1979a, p.18, pl.2, figs.1–3) Lentin and Williams, 1993, p.522. Holotype: Keupp, 1979a, pl.2, figs.1–2. Originally Thoracosphaera, subsequently Pithonella, thirdly Obliquipithonella, fourthly (and now) Pirumella. Age: early Barremian.
Parent: Pirumella