Heterosphaeridium araneosum
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"araneosum" (Brideaux, 1977, p.22-23, pl.9, figs.1-3) Islam, 1993, p.84. Holotype: Brideaux, 1977, pl.9, figs.1-2. NOW Circulodinium?. Originally Cleistosphaeridium, subsequently Heterosphaeridium, thirdly (and now) Circulodinium?. Islam (1993, p.84) cited the basionym as Hystrichosphaeridium araneosum. Age: Aptian-Albian.
Parent: Heterosphaeridium