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The Upper Jurassic refers to the latter part of the Jurassic period, which lasted from approximately 161.7 to 145 million years ago. This epoch is characterized by significant geological and biological developments, including the diversification of dinosaurs and the appearance of early birds and mammals. The Upper Jurassic is divided into three stages: Kimmeridgian, Tithonian, and parts of the earlier stages of the Jurassic. Fossils from this period provide valuable insights into the evolution of life on Earth during the late Mesozoic era.

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