Adnatosphaeridium chonetum
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?chonetum (Cookson and Eisenack, 1962b, p.493, pl.4, figs.8-10) Davey, 1969a, p.171. Holotype: Cookson and Eisenack, 1962b, pl.4, fig.8. Originally Cannosphaeropsis?, subsequently Adnatosphaeridium, thirdly (and now) Adnatosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.15). Age: ?Cenomanian.
Parent: Adnatosphaeridium