Hystrichosphaeridium hystrichoreticulatum

"hystrichoreticulatum" Eisenack, 1938a, p.20, pl.3, figs.6A-B.  Holotype: Eisenack, 1938a, pl.3, figs.6A-B.  NOW Peteinosphaeridium (Appendix A).  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Peteinosphaeridium (Appendix A).  Age: Ordovician (erratic).

Parent: Hystrichosphaeridium