Age and palynological characteristic of the Dongning Formation (Eastern Heilongjiang,China) |
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| Authors: | Tatiana A. Kovaleva,Valentina S. Markevich,Ge Sun |
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| Affiliation: | 1.Research Center of Paleontology and Stratigraphy,Jilin University,Changchun,China;2.Federal Scientific Center of the East Asia Terrestrial Biodiversity FEB RAS,Vladivostok,Russia;3.Key Lab of Past Life and Environment in NE Asia,MOE,Changchun,China;4.College of Paleontology,Shenyang Normal University,Shenyang,China;5.Key Lab of Past Life in NE Asia,MLR,Shenyang,China |
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| Abstract: | The taxonomic composition of the palynological assemblage of the Dongning Formation is supplemented. The palynological assemblage corresponds to those from the Lipovtsy Formation (Aptian) in the Razdolnaya Basin of Primorye (Russia) and the Muling Formation (Aptian) in the Jixi Basin of eastern Heilongjiang (China). It is found that the age of the Dongning Formation is Aptian. The palynological assemblage is characterized by dominance of spores of Gleicheniaceae; they are accompanied by spores of Cyatheaceae. The most important feature of the palynological assemblage of the Dongning Formation is the presence of angiosperm pollen (Tricolpites sp., T. micromunus, T. vulgaris, Retitricolpites georgiensis, R. vulgaris, Clavatipollenites hughesii, Quercites sparsus, Fraxiniopollenites variabilis). |
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