Difference between revisions of "Hystrichosphaeridium hirsutoides var. hamatum"

Revision as of 00:18, 1 September 2015

"var. hamatum" Downie, 1958, p.335, pl.16, fig.1; text-figs.2j-k.  Holotype: Downie, 1958, pl.16, fig.1.  NOW Baltisphaeridium hamatum (Appendix A).  Originally Hystrichosphaeridium hirsutoides var. hamatum, subsequently Baltisphaeridium hirsutoides var. hamatum (Appendix A), thirdly Micrhystridium hamatum (Appendix A), fourthly Acanthodiacrodium hamatum (Appendix A), fifthly (and now) Baltisphaeridium hamatum (Appendix A).  Age: Early Ordovician.Hystrichosphaeridium hirsutoides