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Cordosphaeridium callosum
From Fensome et al., 2019:
Cordosphaeridium? callosum Morgenroth, 1966a, p.21, pl.4, figs.8–10. Holotype: Morgenroth, 1966a, pl.4, figs.9–10. Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?. Lentin and Williams (1985, p.70) retained this species in Cordosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.147). Age: Early Eocene.
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Cordosphaeridium? callosum Morgenroth, 1966a, p.21, pl.4, figs.8–10. Holotype: Morgenroth, 1966a, pl.4, figs.9–10. Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?. Lentin and Williams (1985, p.70) retained this species in Cordosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.147). Age: Early Eocene.
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