| Oxfordian (Jurassic) mayaitid (ammonite) dispersal in the Tibetan Himalaya as the first signal of the establishment of the Indo-Austral subrealm |
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| 作者姓名： | YIN Jiarun |
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| 作者单位： | China University of Geosciences, Beijing 100083, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Grant No. 40072001) and the National Geographic Society of USA (Grant No. 5865-97) |
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| 摘 要： | New fossil collections in the Lanongla area, Tibetan Himalaya enables the establishment of the Upper Jurassic ammonoid succession. Middle Oxfordian ammonite-fauna is characterized by endemic epimayaitids with a marine deepening event, suggesting a high stand of sea level in the Tibetan Himalaya. Distribution of mayaitids around the Eastern Gondwana can be regarded as the first signal of the Indo-Austral Subrealm that was progressively established during the Late Jurassic and Early Cretaceous times.
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| 关 键 词： | Jurassic Oxfordian ammonites Tibetan Himalaya Indo-Austral Subrealm |
Oxfordian (Jurassic) mayaitid (ammonite) dispersal in the Tibetan Himalaya as the first signal of the establishment of the Indo-Austral subrealm |
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| YIN Jiarun.Oxfordian (Jurassic) mayaitid (ammonite) dispersal in the Tibetan Himalaya as the first signal of the establishment of the Indo-Austral subrealm[J].Progress in Natural Science,2003,13(4):282-287. |
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| Authors: | YIN Jiarun |
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| Institution: | China University of Geosciences, Beijing 100083, China |
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| Abstract: | New fossil collections in the Lanongla area, Tibetan Himalaya enables the establishment of the Upper Jurassic ammonoid succession. Middle Oxfordian ammonite-fauna is characterized by endemic epimayaitids with a marine deepening event, suggesting a high stand of sea level in the Tibetan Himalaya. Distribution of mayaitids around the Eastern Gondwana can be regarded as the first signal of the Indo-Austral Subrealm that was progressively established during the Late Jurassic and Early Cretaceous times. |
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| Keywords: | Jurassic Oxfordian ammonites Tibetan Himalaya Indo-Austral Subrealm |
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