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Radiolarians and Their Role in the Study of Stratigraphy and Paleogeography of Shale Oil Basins (Based on the Example of the Bazhenovo Formation in Western Siberia and the Arctic)
被引:0
|作者:
Vishnevskaya, V. S.
[1
,2
]
Amon, E. O.
[2
]
Kalmykov, G. A.
[3
]
Gatovsky, Yu. A.
[3
]
机构:
[1] Russian Acad Sci, Geol Inst, Moscow 119117, Russia
[2] Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117647, Russia
[3] Lomonosov Moscow State Univ, Moscow 119991, Russia
关键词:
Nassellaria;
Spumellaria;
Upper Jurassic;
Lower Cretaceous;
paleogeography;
new species;
JURASSIC RADIOLARIANS;
BIOSTRATIGRAPHY;
BOUNDARY;
NORTH;
PART;
D O I:
10.1134/S0031030124600434
中图分类号:
Q91 [古生物学];
学科分类号:
0709 ;
070903 ;
摘要:
Radiolarians are rock-forming constituents of siliceous beds of the Bazhenovo Formation in Western Siberia. Studying radiolarians is necessary for stratigraphy and correlation of the organic-rich Bazhenovo Formation, as they provide reliable dating of productive intervals of the section and detailed stratigraphy and zonation, which is especially important when data on other fossils groups are absent or insufficient. The evolution of the radiolarian fauna in the Bazhenovo Basin of Western Siberia is briefly reviewed. At different times radiolarian paleocommunities were dominated by different morphotypes. Two new species, Orbiculiforma sibirica sp. nov. and Emiluvia retorta sp. nov. are described.
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页码:767 / 781
页数:15
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