Pirumella porosa subsp. obturata
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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