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Title Transcription
シコク カブ ハクアケイ カラ Trigonioides カセキ ヒ カイセイ 2マイガイ ノ サンシュツ ト ソノ イギ
Title Alternative (English)
Occurrence of Trigonioides from the Lower Cretaceous of Shikoku, and its significance
File
language
jpn
Author
Tashiro, Masayuki
Okuhira, Kousuke
Description
Several specimens referable to the species of Trigonioides(Wakinoa) tetoriensis Maeda were collected from the Tatsukawa Formation,basal formation,of the Monobegawa Group belonging to the Outer Zone of the Southwest Japan,at Tatsukawa,Katsuura area of Tokushima Prefecture,Shikoku.This species is one of the well known fresh-water conditional bivalves which had been described from the basal part of the ltoshiro Subgroup,considered to the Jurassic or Cretaceous deposits of the Tetori Group,belonging to the lnner Zone of the Southwest Japan in Hokuriku district of Japan.This is also known from the non-marine Mesozoic deposits of the Keishou Group,of Southern Korea.Since the occurrence of this species,probably restricted narrow age in the range,is determined to the Latest Hauterivian or Early Barremian judging from that of the upper part of Tatsukawa Formation,the occurrence of this species is not only valuable to the correlation of the non-marine deposits between the Outer and lnner Zones of the Southwest Japan but also the correlations of those among Japan,Korea and the East Asian continent.
Journal Title
島根大学地球資源環境学研究報告
Volume
12
Start Page
1
End Page
9
ISSN
13439774
Published Date
1993-08-30
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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