Alisocysta margarita
From dinoflaj2
"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