Discovery of mid-Cretaceous ammonoids from the Aridagawa area, Wakayama, southwest Japan
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概要
- 論文の詳細を見る
Mid-Cretaceous ammonoid assemblages are newly identified from four localities in the Aridagawa area, Wakayama, southwest Japan. They consist of Middle to Upper Albian ammonoids such as Desmoceras (Pseudouhligella) dawsoni shikokuense, Puzosia subcorbarica, Mojsisoviczia sp., Oxytropidoceras sp., Mortoniceras sp., etc., and Mantelliceras japonicum, which indicates the Lower Cenomanian stage. The Albian ammonoids were found for the first time from the Chichibu Belt of Kii Peninsula. The discovery of these ammonoids indicates a considerably wide distribution of the mid-Cretaceous deposits in the Aridagawa area, and the necessity of a large revision of the previous stratigraphic division of the Cretaceous strata in the area. The mid-Cretaceous deposits in the Aridagawa area and their abundant molluscan fossils are important for reconstruction of the mid-Cretaceous paleoenvironment and tectonics in the eastern margin of Asia.
- 日本古生物学会の論文
- 2008-04-30
著者
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MISAKI AKIHIRO
Kitakyushu Museum of Natural History & Human History
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Misaki Akihiro
Kitakyushu Museum Of Natural History & Human History
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Maeda Haruyoshi
Department Of Earth And Planetary Sciences Graduate School Of Science Kyoto University
関連論文
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- Significance of autochthonous fossil barnacles from the Miocene Natori Group at the Moniwa-Goishi area, northeast Japan
- Taphonomy of large Canadoceras (ammonoid) shells in the Upper Cretaceous Series in South Sakhalin, Russia
- Taxonomic evaluation of various morphological characters in the Late Cretaceous desmoceratine polyphyletic genus "Damesites" from the Yezo Group in Hokkaido and Sakhalin
- Stratigraphy and fossil bivalve assemblages of the mid-Cretaceous Goshoura Group, southwest Japan
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- Estimation of allometric shell growth by fragmentary specimens of Baculites tanakae Matsumoto and Obata (a Late Cretaceous heteromorph ammonoid)
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