Radiolarian fossils from the Koyamada Formation (lowest Cretaceous) of the Somanakamura Group, northeast Japan
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- Matsuoka Atsushi
- 新潟大学教養部地学教室
Bibliographic Information
- Other Title
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- 相馬中村層群小山田層 (最下部白亜系) からの放散虫化石
- ソウマ ナカムラソウグン コヤマダソウ サイ カブ ハクアケイ カラ ノ ホウ
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Abstract
Radiolarian fossils have been newly discovered from the uppermost part (Koyamada Formation) of the Somanakamura Group in the eastern marginal zone of the Abukuma Mountains, northeast Japan. The radiolarian fauna contains Pseudodictyomitra sp. cf. P. carpatica (Lozyniak), Sethocapsa sp. cf. S. kaminogoensis Aita, Hemicryptocapsa capita Tan Sin Hok, and so on. This association indicates an early Early Cretaceous age. The age assignment is consistent with that by ammonites (Berriasian).
Journal
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- Fossils
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Fossils 46 (0), 11-16, 1989
Palaeontological Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679411776000
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- NII Article ID
- 110002706799
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- NII Book ID
- AN00041606
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- ISSN
- 24242632
- 00229202
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- HANDLE
- 10191/17676
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- NDL BIB ID
- 3242912
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed