Pirumella williambensonii

williambensonii (Bolli, 1978b, p.912–913, pl.2, figs.1–12; pl.3, figs.1–12) Williams et al., 1998, p.492–493.  Holotype: Bolli, 1978b, pl.2, figs.1–3.  Originally Bonetocardiella, subsequently Pithonella, thirdly Obliquipithonella, fourthly Orthopithonella, fifthly (and now) Pirumella.  Age: Oxfordian–Kimmeridgian.

Parent: Pirumella