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An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

The Jiufotang Formation is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms. (see Jehol Biota). It is a member of the Jehol group. The exact age of the Jiufotang has been debated for years, with estimates ranging from the Late Jurassic to the Early Cretaceous. He et al. (2004) used argon - isotope radiometry to confirm biostratigraphic age estimates. They confirmed an Early Cretaceous, Aptian age for the Jiufotang Formation, 120.3 +/-0.7 million years ago. Fossils of Microraptor and Jeholornis are from the Jiufotang.

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  • Jiufotang Formation
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  • The Jiufotang Formation is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms. (see Jehol Biota). It is a member of the Jehol group. The exact age of the Jiufotang has been debated for years, with estimates ranging from the Late Jurassic to the Early Cretaceous. He et al. (2004) used argon - isotope radiometry to confirm biostratigraphic age estimates. They confirmed an Early Cretaceous, Aptian age for the Jiufotang Formation, 120.3 +/-0.7 million years ago. Fossils of Microraptor and Jeholornis are from the Jiufotang.
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abstract
  • The Jiufotang Formation is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms. (see Jehol Biota). It is a member of the Jehol group. The exact age of the Jiufotang has been debated for years, with estimates ranging from the Late Jurassic to the Early Cretaceous. He et al. (2004) used argon - isotope radiometry to confirm biostratigraphic age estimates. They confirmed an Early Cretaceous, Aptian age for the Jiufotang Formation, 120.3 +/-0.7 million years ago. Fossils of Microraptor and Jeholornis are from the Jiufotang.
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