鳥取層群からのOperculinaの産出とその生層序学的・古生物地理学的意義

島根大学地球資源環境学研究報告 Volume 13 Page 47-56 published_at 1994-11-30
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Title
鳥取層群からのOperculinaの産出とその生層序学的・古生物地理学的意義
Title
New occurrence of Operculina from the Tottori Group, and its biostratigraphical and paleozoogeographical significance
Title Transcription
トットリ ソウグン カラ ノ Operculina ノ サンシュツ ト ソノ セイソウ ジョガクテキ コセイブツ チリガクテキ イギ
Creator
Matsumoto Toshio
Source Title
島根大学地球資源環境学研究報告
Volume 13
Start Page 47
End Page 56
Journal Identifire
ISSN 13439774
Descriptions
The larger foraminifera,Operculina,has recently been discovered in the Miocene Tottori Group.The biostratigraphical and paleozoogeographical significance of this occurrence are as follows;
(1)The features of the specimen are identical with those of Operculanate japonica. The horizon of Operculina complanata japonica corresponds commonly to the N.8 and rarely to the base of the N.9.The occurrence of Operculina has brought an addition of fossils indicating geologic age in the Tottori Group.
(2) The Tottori area has been assigned to in the Operculina-Miogypsina zoogeographic province on the Japan Sea coast side in the late Early Miocene to early Middle Miocene.This assumption is consistent with the new occurrence of Operculina.
Language
jpn
Resource Type departmental bulletin paper
Publisher
島根大学総合理工学部地球資源環境学教室
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
Date of Issued 1994-11-30
Publish Type Version of Record
Access Rights open access
Relation
[NCID] AA11455176
Remark 12-14,16+ / 1993+