Hystrichosphaeridium robustum Sannemann 1955

"robustum" Sannemann, 1955, p.331, pl.1, figs.6,8–9; pl.6, figs.7–9; text-figs.13,14a–c.  Holotype: Sannemann, 1955, pl.6, fig.7.  NOW Aldridgeisphaera? (Appendix A).  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (combination illegitimate; Appendix A), thirdly Multiplicisphaeridium (Appendix A), fourthly (and now) Aldridgeisphaera? (Appendix A).  Junior homonym: Hystrichosphaeridium robustum Sah et al., 1970.  Age: Devonian (late Givetian).

Parent: Hystrichosphaeridium

Infrataxon List:

"Hystrichosphaeridium robustum subsp. fissum"
"Hystrichosphaeridium robustum subsp. robustum"