Difference between revisions of "Baltisphaeridium mutabile Sannemann 1955 Appendix A"
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Latest revision as of 00:46, 1 September 2015
"mutabile" (Sannemann, 1955, p.331, pl.5, figs.5-6; text-figs.17a-d) Downie and Sarjeant, 1965, p.93. Holotype: Sannemann, 1955, pl.5, fig.5. NOW Aldridgeisphaera (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Multiplicisphaeridium (Appendix A), fourthly (and now) Aldridgeisphaera (Appendix A). Junior homonym: Baltisphaeridium mutabile (Naumova, 1950) Downie and Sarjeant, 1965. See discussion in Fensome et al. (1990, p.111). This combination was not validly published in Downie and Sarjeant (1963, p.90), since these authors did not fully reference the basionym. Age: Devonian (Late Givetian).
Parent: Baltisphaeridium
