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Tityrosphaeridium callosum
Tityrosphaeridium? callosum (Morgenroth, 1966) Sarjeant, 1981
Now Cordosphaeridium?. Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?. At the time of the transfer, Sarjeant, 1981 questionably included this species in Tityrosphaeridium. Lentin and Williams, 1985 questionably retained this species in Cordosphaeridium Eisenack, 1963.
Holotype: Morgenroth, 1966, pl.4, figs.9-10
Age: Early Eocene
Now Cordosphaeridium?. Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?. At the time of the transfer, Sarjeant, 1981 questionably included this species in Tityrosphaeridium. Lentin and Williams, 1985 questionably retained this species in Cordosphaeridium Eisenack, 1963.
Holotype: Morgenroth, 1966, pl.4, figs.9-10
Age: Early Eocene