Hystrichosphaeridium diktyoplokum
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"diktyoplokum" Klumpp, 1953, p.392, pl.18, figs.3-7 (not pl.18, figs.8-10, which are now Cordosphaeridium latum). Emendation: Eaton, 1971, p.358-359, as Areosphaeridium diktyoplokum. Holotype: Klumpp, 1953, pl.18, figs.3-4. NOW Areosphaeridium. Originally Hystrichosphaeridium, subsequently Cordosphaeridium, thirdly (and now) Areosphaeridium. Taxonomic junior synonym: Hystrichosphaeridium (now Areosphaeridium) dictyostilum, according to Eaton (1971, p.359) - however, Sarjeant (1981, p.115) retained Hystrichosphaeridium (as Areosphaeridium) dictyostilum. Age: Mid-Late Eocene.
Parent: Hystrichosphaeridium
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