Cernicysta helbyi
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*helbyi (Morgan, 1980, p.26, pl.18, figs.4-7) Stover and Helby, 1987d, p.265. Emendation: Stover and Helby, 1987d, p.265,267. Holotype: Morgan, 1980, pl.18, figs.4-6; Fensome et al., 1996, figs.1-3 - p.2149. Originally Lithodinia, subsequently (and now) Cernicysta. Age: mid Aptian-Early Albian.
