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Hystrichosphaeridium brevispinosum var. nanus

"Hystrichosphaeridium brevispinosum var. nanus" Deflandre, 1945a, p.62-63, pl.1, figs.5-7.

TYPE: Holotype: Deflandre, 1945a, pl.1, figs.5-6.

HISTORY: NOW: Polygonium nanus (Appendix A). Originally Hystrichosphaeridium brevispinosum var. nanus, subsequently Baltisphaeridium brevispinosum var. nanus (combination not validly published; Appendix A), thirdly Baltisphaeridium nanus (Appendix A), fourthly Micrhystridium nanus (Appendix A), fifthly (and now) Polygonium nanus (Appendix A), sixthly Solisphaeridium nanus (Appendix A).

SYNONYM(S): Taxonomic junior synonym: Baltisphaeridium brevispinosum var. wenlockense (subsequently Salopidium wenlockense) Downie, 1959, an acritarch taxon, according to T.R. Lister (1970, p.54).

COMMENTS: This name was not validly published in Deflandre (1942, fig.1 - p.476), who did not give a description.

ETYMOLOGY: N.I.A.

AGE: Silurian.


Infraspecific taxa:


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