Difference between revisions of "Apectodinium pastielsii"
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| − | "<I><B>pastielsii</B></I>" [[Lentin and Williams, 1989]], p.18. Holotype: [[Pastiels, 1948]], pl.4, fig.4. <B>Name illegitimate | + | "<I><B>pastielsii</B></I>" [[Lentin and Williams, 1989]], p.18. Holotype: [[Pastiels, 1948]], pl.4, fig.4. <B>Name illegitimate — nomenclatural senior synonym</B>: <I>[[Baltisphaeridium geometricum Appendix A|Baltisphaeridium]]</I> (now <I>[[Apectodinium geometricum|Apectodinium]]</I>) <I>[[Baltisphaeridium geometricum Appendix A|geometricum]]</I> [[Pastiels, 1948]] ex [[Downie and Sarjeant, 1965]], which has the same holotype. This was proposed as a substitute name for <I>Hystrichosphaeridium geometricum</I> [[Pastiels, 1948]], p.41, pl.4, figs.1–11. 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>. According to [[Lentin and Williams, 1989|Lentin and Williams (1989]], p.18): "When [[Deflandre and Cookson, 1955|Deflandre and Cookson (1955]]) created the species <I>[[Wetzeliella homomorpha]]</I> they placed <I>Hystrichosphaeridium geometricum</I> Pastiels in the synonomy and referred to 'Pastiels, 1945 <I>pars</I>.' but did not expressly include the holotype ([[Pastiels, 1948]], pl.4, fig.4). By selecting a holotype for <I>[[Wetzeliella homomorpha]]</I> from their own material they created a new species, not a new name, as was assumed in previous issues of this index." Hence, [[Lentin and Williams, 1989|Lentin and Williams (1989]], p.18) proposed <I>Apectodinium pastielsii</I> as a new name. However, [[Fensome et al., 1990|Fensome et al. (1990]], p.617) noted that "... <I>Hystrichosphaeridium geometricum</I> Pastiels, is an illegitimate junior homonym of <I>Hystrichosphaeridium geometricum</I> Deflandre, 1945[a]. By 'transferring' Pastiels' species to <I>[[Baltisphaeridium Appendix A|Baltisphaeridium]]</I>, [[Downie and Sarjeant, 1965|Downie and Sarjeant (1965]], [p.40]) created the valid and legitimate name <I>[[Baltisphaeridium geometricum Appendix A|Baltisphaeridium geometricum]]</I> Pastiels ex Downie and Sarjeant. The name <I>Apectodinium pastielsii</I> is thus superfluous." Age: Eocene. |
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Latest revision as of 19:02, 21 December 2016
"pastielsii" Lentin and Williams, 1989, p.18. Holotype: Pastiels, 1948, pl.4, fig.4. Name illegitimate — nomenclatural senior synonym: Baltisphaeridium (now Apectodinium) geometricum Pastiels, 1948 ex Downie and Sarjeant, 1965, which has the same holotype. This was proposed as a substitute name for Hystrichosphaeridium geometricum Pastiels, 1948, p.41, pl.4, figs.1–11. Originally Hystrichosphaeridium geometricum (name illegitimate), subsequently Baltisphaeridium geometricum (Appendix A), thirdly Apectodinium pastielsii (name illegitimate), fourthly Apectodinium geometricum. According to Lentin and Williams (1989, p.18): "When Deflandre and Cookson (1955) created the species Wetzeliella homomorpha they placed Hystrichosphaeridium geometricum Pastiels in the synonomy and referred to 'Pastiels, 1945 pars.' but did not expressly include the holotype (Pastiels, 1948, pl.4, fig.4). By selecting a holotype for Wetzeliella homomorpha from their own material they created a new species, not a new name, as was assumed in previous issues of this index." Hence, Lentin and Williams (1989, p.18) proposed Apectodinium pastielsii as a new name. However, Fensome et al. (1990, p.617) noted that "... Hystrichosphaeridium geometricum Pastiels, is an illegitimate junior homonym of Hystrichosphaeridium geometricum Deflandre, 1945[a]. By 'transferring' Pastiels' species to Baltisphaeridium, Downie and Sarjeant (1965, [p.40]) created the valid and legitimate name Baltisphaeridium geometricum Pastiels ex Downie and Sarjeant. The name Apectodinium pastielsii is thus superfluous." Age: Eocene.
Parent: Apectodinium