Difference between revisions of "Baltisphaeridium hirsutoides var. hamatum Appendix A"

Revision as of 00:46, 1 September 2015

"var. hamatum" (Downie, 1958, p.335, pl.16, fig.1; text-figs.2j-k) Downie and Sarjeant, 1965, p.91.  Holotype: Downie, 1958, pl.16, fig.1.  NOW Baltisphaeridium hamatum (Appendix A).  Originally Hystrichosphaeridium hirsutoides var. hamatum, subsequently Baltisphaeridium hirsutoides var. hamatum, thirdly Micrhystridium hamatum (Appendix A), fourthly Acanthodiacrodium hamatum (Appendix A), fifthly (and now) Baltisphaeridium hamatum (an acritarch species, Appendix A).  Age: Early Ordovician.Baltisphaeridium hirsutoides