Gonyaulacysta kostromiensis

"kostromiensis" (Vozzhennikova, 1967, p.85, pl.26, figs.1–6; pl.27, figs.1–2) Sarjeant, 1969, p.10.  Emendation: Harding, 1996, p.353,355, as Nelchinopsis kostromiensis.  Holotype: Vozzhennikova, 1967, pl.26, figs.1–6; Jan du Chêne et al., 1986a, pl.44, figs.7–8; Lentin and Vozzhennikova, 1990, text-fig.64; lost according to Lentin and Vozzhennikova (1990, p.109).  Lectotype: Lentin and Vozzhennikova, 1990, pl.15, figs.5–6, designated by Lentin and Vozzhennikova (1990, p.109) and Harding, 1996, pl.1, fig.1.  NOW Nelchinopsis.  Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta, thirdly (and now) Nelchinopsis.  Taxonomic junior synonym: Alaskadinium wigginsii, according to Stover and Williams (1987, p.11).  Age: Neocomian, ?Valanginian or early Hauterivian.

Parent: Gonyaulacysta