Areosphaeridium polypetellum

"polypetellum" Islam, 1983c, p.82,84, pl.2, figs.1-6.  Holotype: Islam, 1983c, pl.2, fig.1.  NOW Cleistosphaeridium.  Originally Areosphaeridium, subsequently (and now) Cleistosphaeridium.  Taxonomic senior synonym: Cleistosphaeridium (as Systematophora) diversispinosum, according to Islam (1993, p.88) - however, Eaton et al. (2001, p. 194) retained Cleistosphaeridium polypetellum.  Age: Early-Mid Eocene.

Parent: Areosphaeridium