Gonyaulax heslertonensis Appendix B
From dinoflaj3
"heslertonensis" Neale and Sarjeant, 1962, p.440, pl.19, fig.5; pl.20, fig.5. Emendation: Duxbury, 1980, p.124, as Heslertonia heslertonensis. Holotype: Neale and Sarjeant, 1962, pl.19, fig.5; text-fig.1. NOW Heslertonia. Originally Gonyaulax, subsequently (and now) Heslertonia. Age: Hauterivian–Barremian.
Parent: Gonyaulax_Appendix B