Agerasphaera margarita

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"margarita" Harland, 1979a, p.29,31,33, pl.1, figs.1-12; pl.2, figs.1-10.  Holotype: Harland, 1979a, pl.1, figs.5-6; pl.2, figs.5-6; Fauconnier and Masure, 2004, pl.2, fig.1.  NOW Alisocysta.  Originally Agerasphaera (generic name illegitimate), subsequently (and now) Alisocysta, thirdly Eisenackia.  Taxonomic junior synonym: Alisocysta rugolirata, according to Damassa and Harland in Lentin and Williams (1989, p.10).  Following I.C.N. Article 55.1, the species name Agerasphaera margarita is validly published even though the generic name Agerasphaera is illegitimate.  Age: Late Paleocene.

Parent: Agerasphaera