Adnatosphaeridium membraniphorum

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?membraniphorum Jan du Chêne and Adediran, 1985, p.10, pl.20, figs.1-6; pl.21, figs.1-10; pl.22, figs.1-4.  Holotype: Jan du Chêne and Adediran, 1985, pl.20, figs.1-3.  Originally Adnatosphaeridium, subsequently (and now) Adnatosphaeridium?.  Questionable assignment: Stancliffe and Sarjeant (1990, p.200).  Age: Late Paleocene-Early Eocene.

Parent: Adnatosphaeridium