Difference between revisions of "Baltisphaeridium piriferum Appendix A"

"<I><B>piriferum</B></I>" ([[Eisenack, 1954a]], p.206-207, pl.1, figs.1a-b; text-fig.1) [[Downie and Sarjeant, 1965]], p.94.&nbsp; Holotype: [[Eisenack, 1954a]], pl.1, figs.1a-b.&nbsp; <B>NOW</B> <I>[[Visbysphaera pirifera Appendix A|Visbysphaera]]</I> (Appendix A).&nbsp; Originally <I>[[Hystrichosphaeridium piriferum|Hystrichosphaeridium]]</I>, subsequently <I>Baltisphaeridium</I>, thirdly <I>[[Multiplicisphaeridium piriferum Appendix A|Multiplicisphaeridium]]</I> (Appendix A), fourthly (and now) <I>[[Visbysphaera pirifera Appendix A|Visbysphaera]]</I> (Appendix A).&nbsp; Taxonomic junior synonyms: <I>Baltisphaeridium hermosum</I> [[Cramer and Diez, 1968]] (name not validly published), an acritarch species, according to [[Cramer, 1970|Cramer (1970]], p.148); <I>Baltisphaeridium</I> (now <I>Visbysphaera</I>) <I>dilatispinosum</I> [[Downie, 1963]], an acritarch species, according to [[Eisenack, 1965c|Eisenack (1965c]], p.263) - however, [[Fensome et al., 1990|Fensome et al. (1990]], p.530) retained <I>Baltisphaeridium</I> (now <I>Visbysphaera</I>) <I>dilatispinosum</I>.&nbsp; This combination was not validly published in [[Downie and Sarjeant, 1963|Downie and Sarjeant (1963]], p.90), since these authors did not fully reference the basionym.&nbsp; Age: Silurian (Late Llandovery).