Baltisphaeridium differtum Appendix A
From dinoflaj3
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