Morphology, Systematics, and Stratigraphic Significance of the Dinocyst Genus Dingodinium
- Authors: Pestchevitskaya E.B.1
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Affiliations:
- Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 52, No 6 (2018)
- Pages: 682-696
- Section: Article
- URL: https://journals.rcsi.science/0031-0301/article/view/167453
- DOI: https://doi.org/10.1134/S0031030118060084
- ID: 167453
Cite item
Abstract
New material from the Upper Kimmeridgian and Volgian of the Gorodishche section (Ulyanovsk Region, Russia) allows a more accurate definition of the tabulation formula and archeopyle morphology of the dinocyst genus Dingodinium. The partiform pattern of the antapex and morphological features of the epicyst indicate that the genus Dingodinium should be attributed to the family Cladopyxiaceae of the suborder Cladopyxiineae. The genus Dingodinium as well as the species D. albertii, D. jurassicum, and D. tuberosum are revised, and a new species, D. nequeas, is described. In addition, the published data on Jurassic and Cretaceous species of the genus Dingodinium are analyzed and morphological criteria allowing their identification are recognized. Many species have a wide geographic distribution. Some species can be regarded as stratigraphically important for certain intervals of the Jurassic and Cretaceous.
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About the authors
E. B. Pestchevitskaya
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: PeschevickayaEB@ipgg.sbras.ru
Russian Federation, Novosibirsk, 630090