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Gymnodinium heterocostatum var. kolpaschevii
Gymnodinium heterocostatum var. kolpaschevii Vozzhennikova, 1967, p.45
Now Dinogymnium heterocostatum ssp. kolpascheuii. Originally Gymnodinium heterocostatum var. kolpaschevii, subsequently (and now) Dinogymnium heterocostatum ssp. kolpaschevii.
Lentin and Vozzhennikova, 1990, provided an expanded description for this taxon.
Holotype: Vozzhennikova, 1967, pl.3, fig.5; Lentin and Vozzhennikova, 1990, pl.3, fig.1; text-fig.4
Locus typicus: Western Siberia (Yuzhno-Kopachevsk area) USSR
Stratum typicum: Senonian
Translation Vozzhennikova, 1967: Lentin and Vozzhennikova, 1990
Original description: Vozzhennikova, 1967, p. 45
Epitheca and hypotheca of almost equal size. Epitheca bell-shaped, hypotheca funnel-shaped with an attenuated antapical end. Transverse furrow deep, its margin wavy. Longitudinal furrow slit-like, extending along both epitheca and hypotheca. Ribs of varying length extend from the transverse furrow in the direction of the poles. Theca is light-colored, smooth or fine grained.
Now Dinogymnium heterocostatum ssp. kolpascheuii. Originally Gymnodinium heterocostatum var. kolpaschevii, subsequently (and now) Dinogymnium heterocostatum ssp. kolpaschevii.
Lentin and Vozzhennikova, 1990, provided an expanded description for this taxon.
Holotype: Vozzhennikova, 1967, pl.3, fig.5; Lentin and Vozzhennikova, 1990, pl.3, fig.1; text-fig.4
Locus typicus: Western Siberia (Yuzhno-Kopachevsk area) USSR
Stratum typicum: Senonian
Translation Vozzhennikova, 1967: Lentin and Vozzhennikova, 1990
Original description: Vozzhennikova, 1967, p. 45
Epitheca and hypotheca of almost equal size. Epitheca bell-shaped, hypotheca funnel-shaped with an attenuated antapical end. Transverse furrow deep, its margin wavy. Longitudinal furrow slit-like, extending along both epitheca and hypotheca. Ribs of varying length extend from the transverse furrow in the direction of the poles. Theca is light-colored, smooth or fine grained.