Difference between revisions of "Wrevittia helicoidea"

<nowiki>*</nowiki><I><B>helicoidea</B></I> ([[Eisenack and Cookson, 1960]], p.2-3, pl.1, figs.4-6,9 [figs.5-6 are now <I>[[Wrevittia cassidata]]</I>]) [[Helenes and Lucas-Clark, 1997]], p.187.&nbsp; Emendations: [[Sarjeant, 1966b]], p.116, as <I>[[Gonyaulacysta helicoidea]]</I>; [[Helenes and Lucas-Clark, 1997]], p.187-188, as <I>Wrevittia helicoidea</I>.&nbsp; Holotype: [[Eisenack and Cookson, 1960]], pl.1, fig.4; [[Jan du Ch&#234;ne et al., 1986a]], pl.40, figs.4-5.&nbsp; Originally <I>[[Gonyaulax helicoidea Appendix B|Gonyaulax]]</I> (Appendix B), subsequently <I>[[Gonyaulacysta helicoidea|Gonyaulacysta]]</I>, thirdly (and now) <I>Wrevittia</I>.&nbsp; Taxonomic junior synonym: <I>Gonyaulacysta </I>(now <I>[[Wrevittia diutina|Wrevittia]]</I>?) <I>diutina</I>, according to [[Stover and Helby, 1987d|Stover and Helby (1987d]], p.287) -however, [[Jan du Ch&#234;ne et al., 1986a|Jan du Ch&#234;ne et al. (1986a]], p.130) and [[Lentin and Williams, 1989|Lentin and Williams (1989]], p.152) retained <I>Gonyaulacysta </I>(now <I>Wrevittia</I>?)<I> diutina</I>.&nbsp; Age: Neocomian-Aptian.