JaLCDOI 10.18926/ESR/52165
タイトル(別表記) On Periploma mitsuganoense Araki (Bivalvia: Mollusca) from the Miocene Bihoku Group in Niimi City, Okayama Prefecture, southwest Japan ―with special reference to it’s paleogeographic significance―
フルテキストURL esr_020_1_007_011.pdf
著者 田口 栄次| 岸本 眞五| 鈴木 茂之|
抄録 In this paper, we deal with re-description of Periploma mitsuganoense Araki and it’s morphological variation and significance of the molluscan fauna of it from the Miocene Bihoku Group in Niimi City, Okayama Prefecture, Southwest Japan. Moreover, the paleogeographic significance of this species is analyzed. The obtained results are summarized as follows: 1. The morphological variation of Periploma mitsuganoense Araki has a wide range on the basis of the analysis of the morphological outline. 2. The occurrence of P. mitsuganoense Araki from the Pectinid fauna is the first record in the West Setouchi Geological Province. 3. It is presumable that P. mitsuganoense Araki is an endemic species in the First Setouchi Geological Province from a view point of it’s spatial distribution.
キーワード Periploma mitsuganoense Araki Mollusca Miocene Bihoku Group morphological variation paleogeographic significance
出版物タイトル Okayama University Earth Science Report
発行日 2013-12-27
20巻
1号
開始ページ 7
終了ページ 11
ISSN 1340-7414
言語 Japanese
著作権者 © 2013 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
論文のバージョン publisher
NAID 120005394593