Dinosaurs and sedimentary environments in the Japanese Cretaceous: a contribution to dinosaur facies in Asia based on molluscan palaeontology and stratigraphy
Dinosaurs and sedimentary environments in the Japanese Cretaceous: a contribution to dinosaur facies in Asia based on molluscan palaeontology and stratigraphy
复制标题
日本白垩纪的恐龙和沉积环境：基于软体动物古生物学和地层学对亚洲恐龙相的贡献
DOI：
10.1006/cres.1994.1005
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发表时间：
1994
影响因子：
2.1
通讯作者：
I. Obata
中科院分区：
文献类型：
--
作者：
M. Matsukawa;I. Obata
摘要日本白垩纪地层中的恐龙化石分布在不同的沉积环境中。本文介绍了日本和库页岛白垩纪恐龙化石的14个地层单位中的16个层位，并给出了基于分带指数的海相阶段命名法。日本和亚洲大陆之间的恐龙亲缘关系和恐龙动物群的相似性是可以识别的。这表明，大部分日本岛屿在白垩纪是亚洲大陆东缘的一部分。根据动物群、植物群和沉积学分析的沉积物代表了从内陆到海岸的一切。在日本的外带中经常识别出异地产状，而在内带中则识别出原地产状。一些来自日本的恐龙被认为改变了它们对亚洲大陆的栖息地偏好。
Abstract Dinosaur remains from Cretaceous strata in Japan are found in different sedimentary environments. Sixteen horizons in 14 stratigraphic units that yield dinosaurs from the Cretaceous in Japan and Sakhalin are presented with marine stage nomenclature based on zonal indices. Dinosaur affinities and similarities in the dinosaur faunas between Japan and the Asian continent are recognizable. This suggests that most of the Japanese islands were part of the eastern margin of the Asiatic continent during the Cretaceous. Habitats analysed on the basis of fauna, flora and sedimentology represent everything from inland to sea-shore. Allochthonous occurrences are often recognized in the outer zone of Japan, while autochthonous ones occur in the inner zone. Some dinosaurs from Japan are considered to have changed their habitat preferences from those on the Asian continent.