Tityrosphaeridium callosum

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"?callosum" (Morgenroth, 1966a, p.21, pl.4, figs.8–10) Sarjeant, 1981, p.121.  Holotype: Morgenroth, 1966a, pl.4, figs.9–10.  NOW Cordosphaeridium?.  Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?.  Questionable assignment: Sarjeant (1981, p.121).  Age: early Eocene.

Parent: Tityrosphaeridium