Corpus ID: 127038354

Palynologic study of the Akkeshi and Tokotan Formations of the Nemuro Group, eastern Hokkaido

@inproceedings{Takahashi1991PalynologicSO,
  title={Palynologic study of the Akkeshi and Tokotan Formations of the Nemuro Group, eastern Hokkaido},
  author={Kiyoshi Takahashi},
  year={1991}
}
The author has carried out the palynological study of the Akkeshi and Tokotan Formations of the Nemuro Group which is distributed in the coastal regions between Kushiro and Nemuro and consists of Campanian, Maastrichtian, and Danian marine sediments. He has collected 48 samples from the Hamanaka-Oborogawa, Akkeshi, and Tokotan Formations and discriminated 311 palynomorphs which are composed of 121 spores, 55 gymnospermous pollen, and 135 angiospermous pollen, excepting phytomicroplankton. He… Expand
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Figures from this paper

Fossil spores and pollen grains of cretaceous (Upper campanian) from Sakhalin, Russia
Maastrichtian angiospermous pollen records from Sakhalin, Russia

References

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fJ,m X 33-34 J.lm in equatorial diameter, exine 0.5 J.lm thick. Occurrence: Akkeshi Formation in Akkeshi rea (AKK-09 and AKK-lO). Previous records: Jurassic-Lower Cretaceous, New Zealand (Couper
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J.lrn in equatorial diameter, exine 2-3 J.lm thick, hamulate
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but differs in being smaller in size and in having narrower trilete rays. Botanical affinity: Unknown
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Osmundacidites wellmanii Couper, Serivastava, Paleont
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Deltoidospora minor (Couper
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J.lffi in equatorial diameter (Takahashi
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Botancal affinity: Unknown
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Dimensions: 50-60 11m in size (Delcourt & Sprumont, 1955); +45 /lm in equatorial diameter (Pocock, 1962); 48 /lm in diameter; laesurae 23 11m long; lips
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Type species: Balmeisporites holodictyus Cookson & Dettmann 1958
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Foveotriletes scrobiculatus (Ross) Potoni~, Beih
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