Hystrichogonyaulax polytrix
From dinoflaj2
"polytrix" Benedek, 1972, p.20, pl.6, figs.1a-b. Emendation: Benedek and Sarjeant, 1981, p.330-333, as Phthanoperidinium polytrix. Holotype: Benedek, 1972, pl.6, figs.1a-b; Benedek and Sarjeant, 1981, fig.2, nos.4,6, fig.6. NOW Phthanoperidinium. Originally Hystrichogonyaulax, subsequently Phthanoperidinium?, thirdly (and now) Phthanoperidinium. Age: mid Oligocene.
Parent: Hystrichogonyaulax