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: middle Aptian–early Albian.
