Alisocysta margarita

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"margarita" (Harland, 1979a, p.29,31,33, pl.1, figs.1-12; pl.2, figs.1-10) Harland, 1979a, p.35.  Holotype: Harland, 1979a, pl.1, figs.5-6; pl.2, figs.5-6; Fauconnier and Masure, 2004, pl.2, fig.1.  NOW Eisenackia.  Originally Agerasphaera, subsequently Alisocysta, thirdly (and now) Eisenackia.  Taxonomic junior synonym: Alisocysta rugolirata, according to Damassa and Harland in Lentin and Williams (1989, p.10).  Age: Late Paleocene.

Parent: Alisocysta