Hystrichosphaeridium spiciferum

"spiciferum" Deunff, 1955, p.146, pl.3, fig.1; text-fig.26.  Holotype: Deunff, 1955, pl.3, fig.1.  NOW Stellechinatum (Appendix A).  Originally Hystrichosphaeridium, subsequently Veryhachium (combination not validly published; Appendix A), thirdly Baltisphaeridium (Appendix A), fourthly Evittia Brito (combination not validly published; Appendix A), fifthly Multiplicisphaeridium (Appendix A), sixthly (and now) Stellechinatum (Appendix A).  Age: Middle Devonian.

Parent: Hystrichosphaeridium