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Hystrichogonyaulax polytrix
Hystrichogonyaulax polytrix Benedek, 1972
Now Phthanoperidinium. Originally Hystrichogonyaulax, subsequently Phthanoperidinium?, thirdly (and now) Phthanoperidinium.
Holotype: Benedek, 1972, pl.6, fig.1a-b; Benedek and Sarjeant, 1981, fig.2, nos.4,6, fig.6
Paratypes: Benedek, 1972
Locus typicus: T÷nisberg, Lower Rhine Embayment, Germany
Stratum typicum: Middle Oligocene
Translation Benedek, 1972: LPP
Original diagnosis: Benedek, 1972, p.20
A species of Hystrichogonyaulax with hair-like processes on sutures. The stoudy polyedrical capsule is divided by a spiral cingulum into a hypocyst and an epicyst of nearly equal size.
Original description: Benedek, 1972, p.20
The thinwalled capsule has a granulate surface with irregularly distributed tubercles. Sutural ridges with 6-10 Ám long thorns which may be furcate.
Now Phthanoperidinium. Originally Hystrichogonyaulax, subsequently Phthanoperidinium?, thirdly (and now) Phthanoperidinium.
Holotype: Benedek, 1972, pl.6, fig.1a-b; Benedek and Sarjeant, 1981, fig.2, nos.4,6, fig.6
Paratypes: Benedek, 1972
Locus typicus: T÷nisberg, Lower Rhine Embayment, Germany
Stratum typicum: Middle Oligocene
Translation Benedek, 1972: LPP
Original diagnosis: Benedek, 1972, p.20
A species of Hystrichogonyaulax with hair-like processes on sutures. The stoudy polyedrical capsule is divided by a spiral cingulum into a hypocyst and an epicyst of nearly equal size.
Original description: Benedek, 1972, p.20
The thinwalled capsule has a granulate surface with irregularly distributed tubercles. Sutural ridges with 6-10 Ám long thorns which may be furcate.