Obliquipithonella porosa forma obturata

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"forma obturata" (Pflaumann and Krasheninnikov, 1978, p.820, pl.3, figs.1a-b,2a-b,3) Lentin and Williams, 1985, p.382.  Holotype: Pflaumann and Krasheninnikov, 1978, pl.3, figs. 1a-b.  NOW Pirumella porosa subsp. obturata.  Originally Pithonella porosa forma obturata, subsequently Obliquipithonella porosa forma obturata, thirdly (and now) Pirumella porosa subsp. obturata.  Age: Latest Albian-Cenomanian. Parent: Obliquipithonella porosa