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- The Kitadani Formation (Japanese: 北谷層 Kitadani-sō) is a unit of Lower Cretaceous sedimentary rock which crops out near the city of Katsuyama in the Fukui Prefecture of Japan, and it is the primary source of Cretaceous-aged non-marine vertebrate fossils in Japan. Dinosaur remains are among the fossils that have been recovered from the formation, but it also preserves a diverse assemblage of plants, invertebrates, and other vertebrates. Most, if not all, of the fossil specimens collected from the Kitadani Formation are reposited at the Fukui Prefectural Dinosaur Museum. The Kitadani Formation is a unit within the Tetori Group, a major sequence of Lower Cretaceous rocks which is distributed across the Fukui, Ishikawa, and Gifu prefectures of western-central Honshu, Japan. The Tetori Group exhibits marked lateral variation, and the Kitadani Formation is only present in the Fukui Prefecture. The Kitadani Formation comprises interbedded tuffs, sandstones, and shales and reaches a maximum thickness of approximately one hundred meters (~328 feet). It conformably overlies the Akaiwa Formation and is unconformably overlain by the . The Kitadani Formation is significant because it is the major source of dinosaur fossils in Japan and because of Japan's unique position along the northeastern margin of Eurasia during the Early Cretaceous. (en)
- La formation de Kitadani est une formation géologique détritique datant du Crétacé inférieur qui affleure dans la préfecture de Fukui au centre ouest de l'île de Honshū au Japon. Cette formation est la principale source de fossiles de vertébrés terrestres du Crétacé du Japon. (fr)
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| rdfs:comment
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- La formation de Kitadani est une formation géologique détritique datant du Crétacé inférieur qui affleure dans la préfecture de Fukui au centre ouest de l'île de Honshū au Japon. Cette formation est la principale source de fossiles de vertébrés terrestres du Crétacé du Japon. (fr)
- The Kitadani Formation (Japanese: 北谷層 Kitadani-sō) is a unit of Lower Cretaceous sedimentary rock which crops out near the city of Katsuyama in the Fukui Prefecture of Japan, and it is the primary source of Cretaceous-aged non-marine vertebrate fossils in Japan. Dinosaur remains are among the fossils that have been recovered from the formation, but it also preserves a diverse assemblage of plants, invertebrates, and other vertebrates. Most, if not all, of the fossil specimens collected from the Kitadani Formation are reposited at the Fukui Prefectural Dinosaur Museum. (en)
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