Peteinosphaeridium hymenoferum Appendix A

hymenoferum (Eisenack, 1938a, p.19, pl.3, figs.2–5) Fensome et al., 1990, p.390.  Holotype: Eisenack, 1938a, pl.3, fig.2.  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Peteinosphaeridium.  This combination was not validly published in Eisenack (1969a, p.254), since that author did not fully reference the basionym.  Age: Ordovician (erratic).

Parent: Peteinosphaeridium_Appendix A