Korystocysta kettonensis
"*kettonensis" (Sarjeant, 1976a, p.13,15, pl.1, figs.1–2; pl.3, figs.1–2; pl.6, fig.1; text-figs.3A–D) Woollam, 1983, p.193–194. Holotype: Sarjeant, 1976a, pl.1, figs.1–2; Fensome et al., 1995, figs.1–4 — p.1583. Originally Dichadogonyaulax, subsequently Ctenidodinium, thirdly Korystocysta. Taxonomic senior synonym: Dichadogonyaulax (now Korystocysta) gochtii, according to Riley and Fenton (1982, p.199) and Herngreen et al. (2000, p.50). Taxonomic senior synonyms: Gonyaulax (now Korystocysta) pachyderma and Leptodinium (subsequently Korystocysta) norrisii, by implication in Conway (1990, p.35), who considered Dichadogonyaulax (as Korystocysta) kettonensis to be the senior name — however, Lentin and Williams (1993, p.374) retained Korystocysta kettonensis. The name Dichadogonyaulax (now Korystocysta) gochtii has priority over the name Dichadogonyaulax (subsequently Korystocysta) kettonensis since the authors who first considered the two species to be synonyms (Riley and Fenton, 1982, p.199) designated the former name as senior (I.C.N. Article 11.5). Age: Bathonian.
