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Appendix A

Baltisphaeridium oligacanthum subsp. complanatum

"Baltisphaeridium oligacanthum subsp. complanatum" (W. Wetzel, 1952, p.404-405, pl.A, figs.11a-b) Downie and Sarjeant, 1965, p.93.

EMENDATION: Sarjeant, 1984c, p.142, as Solisphaeridium stimuliferum subsp. complanatum.

TYPE: Holotype: W. Wetzel, 1952, pl.A, figs.11a-b; Sarjeant, 1984c, pl.4, fig.6; text-fig.13.

HISTORY: NOW: Micrhystridium stimuliferum? subsp. complanatum (Appendix A). Originally Hystrichosphaeridium oligacanthum subsp. complanatum, subsequently Baltisphaeridium oligacanthum subsp. complanatum, thirdly Cleistosphaeridium? oligacanthum subsp. complanatum, fourthly (and now) Solisphaeridium stimuliferum subsp. complanatum (Appendix A), fifthly Micrhystridium stimuliferum? subsp. complanatum (Appendix A).

AGE: Paleocene.


Infraspecific taxa:


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