Lower Triassic bivalve fossils from the Song Da and An Chau Basins, North Vietnam

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概要

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• In North Vietnam, the Hua Tat, Pa Khom and Lang Son Formations yield abundant Lower Triassic bivalves. The occurrence of Eumorphotis sp. cf. E. multiformis, represents the first fossil reported from the Hua Tat Formation, while Claraia aurita, C. concentrica, and C. intermedia multistriata are found in the upper Lang Son Formation. The Pa Khom Formation contains C. intermedia multistriata, Claraia sp., and Lopha sp. The occurrence of C. intermedia multistriata indicates that the Pa Khom Formation and the upper Lang Son Formation are Olenekian in age. These Claraia spp. are found in wavedominated nearshore deposits characterized by hummocky cross stratification and wave-ripple laminations, although Claraia in other areas is generally found in deep-sea mudstone.

• 日本古生物学会の論文
• 2007-06-30

著者

• Huyen Dang

  Department Of Paleontology And Stratigraphy Research Institute Of Geology And Mineral Resources Mini

• KOMATSU TOSHIFUMI

  Faculty of Science, Kumamoto University

• Komatsu Toshifumi

  Faculty Of Science Kumamoto University

• Huyen Dang

  Res. Inst. Geology And Mineral Resources Ministry Of Ind. Hanoi Vnm

関連論文

• Lower Triassic bivalve fossils from the Song Da and An Chau Basins, North Vietnam
• Discovery of the Middle Triassic ammonoid Balatonites in the Quy Lang Formation, Thanh Hoa Province, Central Vietnam
• A new Lower Devonian leperditicopid arthropod : Sinoleperditia huyeni sp. nov. from northern Vietnam
• Crittendenia (Bivalvia) from the Lower Triassic (Olenekian) Bac Thuy Formation, An Chau Basin, Northern Vietnam

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