Cordosphaeridium cracenospinosum
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?cracenospinosum Davey and Williams, 1966b, p.87, pl.3, fig.3 (not 4). Holotype: Davey and Williams, 1966b, pl.3, fig.3 (not 4); Bujak et al., 1980, pl.7, fig.9. Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Achomosphaera?. Lentin and Williams (1985, p.70) retained this species in Cordosphaeridium. Questionable assignment: Stover and Evitt (1978, p.147). Age: early Eocene.
Parent: Cordosphaeridium