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