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Dinogymnium vozzhennikovae
From Fensome et al., 2019:
Dinogymnium vozzhennikovae Lentin and Williams, 1973, p.50. Emendation: Lentin and Vozzhennikova, 1990, p.23, as Dinogymnium vozzhennikovae. Holotype: Vozzhennikova, 1967, pl.5, fig.7; Lentin and Vozzhennikova, 1990, pl.3, figs.2–3; text-fig.9. Originally Gymnodinium albertii (Appendix B), subsequently (and now) Dinogymnium vozzhennikovae. Substitute name for Gymnodinium albertii Vozzhennikova, 1967, p.41–42, pl.5, figs.7–8; the name Dinogymnium albertii is preoccupied. Age: Turonian.
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Translation Vozzhennikova, 1967: Lentin and Vozzhennikova, 1990
Original description: Vozzhennikova, 1967, p.41-42: Gymnodinium albertii
Theca broadly elliptical, divided by a shallow, wide furrow into two almost equal parts. Epitheca and hypotheca broadly rounded at the poles. Sliqhtly raised ribs run from the transverse furrow towards the poles; these ribs are situated at varying distances from each other. The position of the longitudinal furrow is indlstinct, possibly because it is difficult to discern among the ribs. The theca is thin, pale yellow in color, smooth or finely granular, covered with ribs.
Emended description: Lentin and Vozzhennikova, 1990, p. 23
Cyst shape oval, epicyst and hypocyst broadly conical; autophragm finely granulose: well defined, narrow longitudinal ridges extend from the apex to the antapex interupted only by the paracingulum; archeopyle formed by two arcuate sutures, about 5 µm long resulting in the separation of an apical paraplate along two arcuate sutures about 5 µm long; paracingulum shallow, wide, dividing the cyst into two nearly equal portions, the epicyst being slightly longer than the hypocyst; parasulcus very shallow, suggested by an indistinct interruption of the paracingulum.
Size: Holotype, length 55 µm, width 40 µm, width of paracingulum about 5 µm; additional specimen, length 62 µm, width 46 µm width of paracingulum 4.5-5.5 µm.
Dinogymnium vozzhennikovae Lentin and Williams, 1973, p.50. Emendation: Lentin and Vozzhennikova, 1990, p.23, as Dinogymnium vozzhennikovae. Holotype: Vozzhennikova, 1967, pl.5, fig.7; Lentin and Vozzhennikova, 1990, pl.3, figs.2–3; text-fig.9. Originally Gymnodinium albertii (Appendix B), subsequently (and now) Dinogymnium vozzhennikovae. Substitute name for Gymnodinium albertii Vozzhennikova, 1967, p.41–42, pl.5, figs.7–8; the name Dinogymnium albertii is preoccupied. Age: Turonian.
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Translation Vozzhennikova, 1967: Lentin and Vozzhennikova, 1990
Original description: Vozzhennikova, 1967, p.41-42: Gymnodinium albertii
Theca broadly elliptical, divided by a shallow, wide furrow into two almost equal parts. Epitheca and hypotheca broadly rounded at the poles. Sliqhtly raised ribs run from the transverse furrow towards the poles; these ribs are situated at varying distances from each other. The position of the longitudinal furrow is indlstinct, possibly because it is difficult to discern among the ribs. The theca is thin, pale yellow in color, smooth or finely granular, covered with ribs.
Emended description: Lentin and Vozzhennikova, 1990, p. 23
Cyst shape oval, epicyst and hypocyst broadly conical; autophragm finely granulose: well defined, narrow longitudinal ridges extend from the apex to the antapex interupted only by the paracingulum; archeopyle formed by two arcuate sutures, about 5 µm long resulting in the separation of an apical paraplate along two arcuate sutures about 5 µm long; paracingulum shallow, wide, dividing the cyst into two nearly equal portions, the epicyst being slightly longer than the hypocyst; parasulcus very shallow, suggested by an indistinct interruption of the paracingulum.
Size: Holotype, length 55 µm, width 40 µm, width of paracingulum about 5 µm; additional specimen, length 62 µm, width 46 µm width of paracingulum 4.5-5.5 µm.