Baltisphaeridium venustum Appendix A
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"venustum" (Sannemann, 1955, p.345, pl.5, fig.11; text-fig.15) Downie and Sarjeant, 1965, p.98. Holotype: Sannemann, 1955, pl.5, fig.11. NOW Hapsidopalla (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Multiplicisphaeridium (Appendix A), fourthly (and now) Hapsidopalla (Appendix A). This combination was not validly published in Downie and Sarjeant (1963, p.91), since these authors did not fully reference the basionym. Age: Devonian (Late Givetian).
Parent: Baltisphaeridium_Appendix A