https://gcmd.earthdata.nasa.gov/kms/concept/47a5e636-ac8a-4c32-a356-d8c6a7172a8f
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change note |
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definition | The Upper Jurassic is the last geological epoch in the Jurassic that began 163.5 million years ago (mya), and ended at 145 mya. It was followed by the Lower Cretaceous. | ||||||||||||||||
narrower |
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type |
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in scheme | chronounits original |