Difference between revisions of "Gonyaulacysta helicoidea"
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| − | "<I><B>helicoidea</B></I>" ([[Eisenack and Cookson, 1960]], p.2 | + | "<I><B>helicoidea</B></I>" ([[Eisenack and Cookson, 1960]], p.2–3, pl.1, figs.4–6,9 [figs.5-6 are now <I>[[Gonyaulacysta cassidata]]</I>]) [[Sarjeant, 1966b]], p.116–117. Emendations: [[Sarjeant, 1966b]], p.116, as <I>Gonyaulacysta helicoidea</I>; [[Helenes and Lucas-Clark, 1997]], p.187–188, as <I>[[Wrevittia helicoidea]]</I>. Holotype: [[Eisenack and Cookson, 1960]], pl.1, fig.4; [[Jan du Chêne et al., 1986a]], pl.40, figs.4–5. <B>NOW</B> <I>[[Wrevittia helicoidea|Wrevittia]]</I>. Originally <I>[[Gonyaulax helicoidea Appendix B|Gonyaulax]]</I> (Appendix B), subsequently <I>Gonyaulacysta</I>, thirdly (and now) <I>[[Wrevittia helicoidea|Wrevittia]]</I>. Taxonomic junior synonym: <I>Gonyaulacysta</I> (now <I>Wrevittia</I>)<I> diutina</I>, according to [[Stover and Helby, 1987d|Stover and Helby (1987d]], p.287) — however, [[Jan du Chêne et al., 1986a|Jan du Chêne et al. (1986a]], p.131) and [[Lentin and Williams, 1989|Lentin and Williams (1989]], p.152) retained <I>Gonyaulacysta </I>(now <I>Wrevittia</I>?)<I> diutina</I>. Age: Neocomian–Aptian. |
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Latest revision as of 19:22, 21 December 2016
"helicoidea" (Eisenack and Cookson, 1960, p.2–3, pl.1, figs.4–6,9 [figs.5-6 are now Gonyaulacysta cassidata]) Sarjeant, 1966b, p.116–117. Emendations: Sarjeant, 1966b, p.116, as Gonyaulacysta helicoidea; Helenes and Lucas-Clark, 1997, p.187–188, as Wrevittia helicoidea. Holotype: Eisenack and Cookson, 1960, pl.1, fig.4; Jan du Chêne et al., 1986a, pl.40, figs.4–5. NOW Wrevittia. Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta, thirdly (and now) Wrevittia. Taxonomic junior synonym: Gonyaulacysta (now Wrevittia) diutina, according to Stover and Helby (1987d, p.287) — however, Jan du Chêne et al. (1986a, p.131) and Lentin and Williams (1989, p.152) retained Gonyaulacysta (now Wrevittia?) diutina. Age: Neocomian–Aptian.
Parent: Gonyaulacysta
Infrataxon List: