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Appendix A

Baltisphaeridium hymenoferum

"Baltisphaeridium hymenoferum" (Eisenack, 1938a, p.19, pl.3, figs.2-5) Downie and Sarjeant, 1965, p.91.

TYPE: Holotype: Eisenack, 1938a, pl.3, fig.2.

HISTORY: NOW: Peteinosphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly (and now) Peteinosphaeridium (Appendix A).

COMMENTS: This combination was not validly published in Eisenack (1958b, p.400 and 1959, p.204) and Downie and Sarjeant (1963, p.90), since these authors did not fully reference the basionym.

AGE: Ordovician (erratic).


Infraspecific taxa:


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