Baltisphaeridium castanea Appendix A

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castanea (Eisenack, 1934, p.71, pl.5, fig.32 ex Eisenack, 1938a, p.12) Downie and Sarjeant, 1965, p.88.  Holotype: Eisenack, 1934, pl.5, fig.32.  Originally Ovum hispidum subsp. castanea (name not validly published), subsequently Hystrichosphaeridium castanea, thirdly (and now) Baltisphaeridium castanea.  This combination was not validly published in Downie and Sarjeant (1963, p.90), since these authors did not fully reference the basionym.  The name Ovum hispidum subsp. castanea was not validly published in Eisenack (1934) since the specific name Ovum hispidum was not validly published.  N.I.A.  Age: Silurian.

Parent: Baltisphaeridium_Appendix A