| Mississippian foraminifers from the Onimaru Formation in the
Hikoroichi area, South Kitakami Belt, Northeast Japan |
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| 关键词:Mississippian foraminifers Northeast Japan Onimaru Formation South Kitakami Belt Visean |
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| Mississippian foraminifers from the Onimaru Formation in theHikoroichi area, South Kitakami Belt, Northeast Japan |
| Abundant foraminifers were found from the Mississippian Onimaru Formation distributed in the Hikoroichi area of the central part of the South Kitakami Belt, Northeast Japan. They include Brunsia pulchra, Archaediscus sp., Paraarchaediscus? sp., Neoarchaediscus? sp., Palaeotextularia spp., Climacammina, spp., Tetrataxis spp., Haplophragmella sp., Lituotubella? sp., Forschiella sp., Cribrospira sp., Bradyina spp., Janischewskina sp., Endothyra spp., Planoendothyra aljutovica., Endothyranopsis compressa, E. crassa, Omphalotis samarica, Eo-staffella spp., Mediocris breviscula, and several others. The Onimaru foraminiferal fauna is similar to those re-ported from MFZ (Mamet Foraminiferal Zone) 15-16. This supports a late Visean (V3b-V3c) age of the formation, which has been proposed previously by rugose corals. |
| Katsumi UENO,Tomohide MIYAZAKI.2009.Mississippian foraminifers from the Onimaru Formation in theHikoroichi area, South Kitakami Belt, Northeast Japan[J].Acta Geoscientica Sinica,30(S1):82-86. |
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