Areosphaeridium diktyoplokus ssp. latum, (Klumpp, 1953), Lentin and Williams, 1973

Now Cordosphaeridium latum. Originally Hystrichosphaeridium diktyoplokus subsp. Iatum, subsequently Cordosphaeridium diktyoplokus subsp. Iatum, thirdly Areosphaeridium diktyoplokus subsp. Iatum, fourthly Plethysyrinx? Iata, fifthly (and now) Cordosphaeridium latum.

Holotype: Klumpp, 1953, pl.18, figs.8-9
Age: Eocene