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Cordosphaeridium callosum
Cordosphaeridium? callosum, Morgenroth, 1966
Originally Cordosphaeridium, subsequently (and now) Cordosphaendium?, thirdly Tityrosphaeridium?.
Sarjeant, 1981, provisionally transferred this species to Tityrosphaeridium Sarjeant, 1981. Lentin and Williams, 1985, retained it in Cordosphaeridium.
Stover and Evitt, 1978, considered this to be a provisionally accepted species of Cordosphaeridium.
Holotype: Morgenroth, 1966, pl.4, figs.9-10
Age: Early Eocene
Originally Cordosphaeridium, subsequently (and now) Cordosphaendium?, thirdly Tityrosphaeridium?.
Sarjeant, 1981, provisionally transferred this species to Tityrosphaeridium Sarjeant, 1981. Lentin and Williams, 1985, retained it in Cordosphaeridium.
Stover and Evitt, 1978, considered this to be a provisionally accepted species of Cordosphaeridium.
Holotype: Morgenroth, 1966, pl.4, figs.9-10
Age: Early Eocene