Difference between revisions of "Micrhystridium hamatum Appendix A"
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Latest revision as of 00:48, 1 September 2015
"hamatum" (Downie, 1958, p.335, pl.16, fig.1; text-figs.2j-k) Deflandre and Deflandre-Rigaud, 1965, fiche 2248. 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, fourthly Acanthodiacrodium hamatum (Appendix A), fifthly (and now) Baltisphaeridium hamatum (Appendix A). Age: Early Ordovician.
Parent: Micrhystridium
