Difference between revisions of "Apectodinium geometricum"
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| − | <I><B>geometricum</B></I> ([[Pastiels, 1948]], p.41, pl.4, figs.1 | + | <I><B>geometricum</B></I> ([[Pastiels, 1948]], p.41, pl.4, figs.1–11 ex [[Downie and Sarjeant, 1965]], p.90) [[Fensome et al., 1990]], p.617. Holotype: [[Pastiels, 1948]], pl.4, fig.4. Originally <I>Hystrichosphaeridium geometricum</I> (name illegitimate), subsequently <I>[[Baltisphaeridium geometricum Appendix A|Baltisphaeridium geometricum]]</I> (Appendix A), thirdly <I>[[Apectodinium pastielsii]]</I> (name illegitimate), fourthly <I>Apectodinium geometricum</I>. Nomenclatural junior synonym: <I>[[Apectodinium pastielsii]]</I>, which has the same type. Taxonomic junior synonym (at specific rank): <I>[[Wetzeliella homomorpha var. quinquelata|Wetzeliella homomorpha]]</I> var. <I>[[Wetzeliella homomorpha var. quinquelata|quinquelata]]</I> (as <I>[[Wetzeliella quinquelata]]</I>, now <I>[[Apectodinium quinquelatum]]</I>), by implication in [[Harland, 1979c|Harland (1979c]], p.67), who considered the latter to be the senior name — however, [[Lentin and Williams, 1989|Lentin and Williams (1989]], p.18) retained <I>[[Apectodinium quinquelatum]]</I>. The name <I>Hystrichosphaeridium geometricum</I> Pastiels is an illegitimate junior homonym of <I>Hystrichosphaeridium geometricum</I> [[Deflandre, 1945a]]. By "transferring" Pastiels' species to <I>[[Baltisphaeridium geometricum Appendix A|Baltisphaeridium]]</I>, [[Downie and Sarjeant, 1965|Downie and Sarjeant (1965]], p.90) created the valid and legitimate name <I>[[Baltisphaeridium geometricum Appendix A|Baltisphaeridium geometricum]]</I> [[Pastiels, 1948]] ex [[Downie and Sarjeant, 1965]]. The name <I>[[Apectodinium pastielsii]]</I> [[Lentin and Williams, 1989]], is thus superfluous. [[Deflandre and Cookson, 1955|Deflandre and Cookson (1955]], p.254) identified the specimen illustrated in [[Pastiels, 1948|Pastiels (1948]], pl.4, fig.8) as <I>[[Wetzeliella homomorpha|Wetzeliella]]</I> (now <I>[[Apectodinium homomorphum|Apectodinium]]</I>) <I>[[Wetzeliella homomorpha|homomorpha]]</I>. Age: Ypresian. |
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Latest revision as of 19:02, 21 December 2016
geometricum (Pastiels, 1948, p.41, pl.4, figs.1–11 ex Downie and Sarjeant, 1965, p.90) Fensome et al., 1990, p.617. Holotype: Pastiels, 1948, pl.4, fig.4. Originally Hystrichosphaeridium geometricum (name illegitimate), subsequently Baltisphaeridium geometricum (Appendix A), thirdly Apectodinium pastielsii (name illegitimate), fourthly Apectodinium geometricum. Nomenclatural junior synonym: Apectodinium pastielsii, which has the same type. Taxonomic junior synonym (at specific rank): Wetzeliella homomorpha var. quinquelata (as Wetzeliella quinquelata, now Apectodinium quinquelatum), by implication in Harland (1979c, p.67), who considered the latter to be the senior name — however, Lentin and Williams (1989, p.18) retained Apectodinium quinquelatum. The name Hystrichosphaeridium geometricum Pastiels is an illegitimate junior homonym of Hystrichosphaeridium geometricum Deflandre, 1945a. By "transferring" Pastiels' species to Baltisphaeridium, Downie and Sarjeant (1965, p.90) created the valid and legitimate name Baltisphaeridium geometricum Pastiels, 1948 ex Downie and Sarjeant, 1965. The name Apectodinium pastielsii Lentin and Williams, 1989, is thus superfluous. Deflandre and Cookson (1955, p.254) identified the specimen illustrated in Pastiels (1948, pl.4, fig.8) as Wetzeliella (now Apectodinium) homomorpha. Age: Ypresian.
Parent: Apectodinium