Pirumella porosa subsp. obturata

subsp. obturata (Pflaumann and Krasheninnikov, 1978, p.820, pl.3, figs.1a-b,2a-b,3) Lentin and Williams, 1993, p.520.  Holotype: Pflaumann and Krasheninnikov, 1978, pl.3, figs.1a-b.  Originally Pithonella porosa forma obturata, subsequently Obliquipithonella porosa forma obturata, thirdly (and now) Pirumella porosa subsp. obturata.  Age: latest Albian-Cenomanian. Parent: Pirumella porosa