"Baltisphaeridium mutabile" (Sannemann, 1955, p.331, pl.5, figs.5-6; text-figs.17a-d) Downie and Sarjeant, 1965, p.93.
TYPE: Holotype: Sannemann, 1955, pl.5, fig.5. HISTORY: 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. COMMENTS: 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).
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |