Difference between revisions of "Baltisphaeridium arrectum Appendix A"

Latest revision as of 00:45, 1 September 2015

arrectum (Timofeev, 1959, p.53, pl.4, fig.8) Downie and Sarjeant, 1965, p.87.  Holotype: Timofeev, 1959, pl.4, fig.8.  Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium.  This combination was not validly published in Downie and Sarjeant (1963, p.89), since these authors did not fully reference the basionym.  Age: Early-Mid Ordovician.