Early Tithonian (Late Jurassic) ammonite Parapallasiceras newly discovered from the Itoshiro Subgroup (Tetori Group) in the Hida Belt, northern Central Japan
利用統計を見る
Proceedings of the Japan Academy Series B: Physical and Biological Sciences
巻
81
号
7
ページ
267 - 272
発行年
2005-09-01
ISSN
0386-2208
NCID
AA00785485
DOI
10.2183/pjab.81.267
出版者
日本学士院 = Japan Academy
抄録
Early Tithonian (Late Jurassic) ammonite Parapallasiceras cf. pseudocontiguum (Donze and Enay) was discovered in situ from the Kamihambara Formation of the Itoshiro Subgroup (Tetori Group) distributed in the Hida Belt, in Fukui Prefecture, northern Central Japan. It is a Perisphinctid characterized by polygyrate ribbing and can be compared to the said species originally described in Southeast France. The species occurs in the Lower Tithonian of the Submediterranean region. Therefore at least a part of the Itoshiro Subgroup can be dated Early Tithonian, judged by this ammonite.
権利
Copyright (c) 2005 The Japan Academy
日本学士院の許諾を得て登録。Proceedings of the Japan Academy Series B: Physical and Biological Sciences 81(7) に初出。
Early Tithonian (Late Jurassic) ammonite Parapallasiceras newly discovered from the Itoshiro Subgroup (Tetori Group) in the Hida Belt, northern Central Japan
SC-PR-YAMADA-T-267.pdf
(881.9KB)
