Cordosphaeridium biarmatum
From dinoflaj2
biarmatum Morgenroth, 1966a, p.21, pl.4, figs.6-7. Holotype: Morgenroth, 1966a, pl.4, figs.6-7. Originally (and now) Cordosphaeridium, subsequently Tityrosphaeridium?. Lentin and Williams (1985, p.70) retained this species in Cordosphaeridium. Age: Early Eocene.
Parent: Cordosphaeridium