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Impletosphaeridium panniforme

"Impletosphaeridium panniforme" (Gerlach, 1961, p.196-198, pl.28, fig.13) Morgenroth, 1966a, p.35.

TYPE: Holotype: Gerlach, 1961, pl.28, fig.13.

HISTORY: Originally Baltisphaeridium (Appendix A), subsequently Impletosphaeridium, thirdly Cleistosphaeridium.

SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (now Systematophora) placacantha, according to Sarjeant (1984b, p.86-87).

AGE: mid Oligocene.


Infraspecific taxa:


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