Hystrichogonyaulax coreoides

"coreoides" Benedek, 1972, p.20, pl.9, figs.4a-c.  Emendation: Benedek and Sarjeant, 1981, p.328-330, as Phthanoperidinium coreoides. Holotype: Benedek, 1972, pl.9, figs.4a-c; Benedek and Sarjeant, 1981, fig.3, nos.2,4; text-fig.5.  NOW Phthanoperidinium.  Originally Hystrichogonyaulax, subsequently (and now) Phthanoperidinium.  Taxonomic senior synonym: Peridinium (as Phthanoperidinium) comatum, according to Stover and Evitt (1978, p.118) - however, Benedek and Sarjeant (1981, p.328-330) retained Hystrichogonyaulax (as Phthanoperidinium) coreoides.  Age: mid Oligocene.

Parent: Hystrichogonyaulax