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Cleistosphaeridium tribuliferum

"Cleistosphaeridium? tribuliferum" (Sarjeant, 1962a, p.487-488, pl.70, fig.4; text-figs.6c,7) Davey et al., 1969, p.16.

TYPE: Holotype: Sarjeant, 1962a, pl.70, fig.4.

HISTORY: NOW: Impletosphaeridium. Originally Baltisphaeridium (Appendix A), subsequently Cleistosphaeridium, thirdly Cleistosphaeridium?, fourthly (and now) Impletosphaeridium. Questionable assignment: Stover and Evitt (1978, p.32).

COMMENTS: This combination was not validly published in Davey et al. (1966, p.170), since these authors did not fully reference the basionym.

AGE: Oxfordian.


Infraspecific taxa:


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