Baltisphaeridium differtum Appendix A

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differtum (Sannemann, 1955, p.327, pl.4, fig.15; text-figs.5a–c) Downie and Sarjeant, 1965, p.89.  Holotype: Sannemann, 1955, pl.4, fig.15.  Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium.  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_Appendix A