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Cleistosphaeridium danicum

"Cleistosphaeridium? danicum" (W. Wetzel, 1952, p.396-397, pl.A, figs.5-6; text-fig.8) Davey et al., 1969, p.15.

EMENDATION: Sarjeant, 1984c, p.129-130, as Achomosphaera danica.

TYPE: Holotype: W. Wetzel, 1952, pl.A, fig.6.

HISTORY: NOW: Achomosphaera. Originally Areoligera, subsequently Baltisphaeridium (Appendix A), thirdly Hystrichosphaeridium, fourthly Cleistosphaeridium?, fifthly (and now) Achomosphaera. Questionable assignment: Davey et al. (1969, p.15).

SYNONYM(S): Taxonomic senior synonym: Areoligera senonensis, according to Lejeune-Carpentier and Sarjeant (1981, p.15) - however, Sarjeant (1984c, p.130) retained Cleistosphaeridium (as Achomosphaera) danicum.

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

AGE: Paleocene.


Infraspecific taxa:


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