https://gcmdservices.gsfc.nasa.gov/kms/concept/19b97ca1-f6ae-4a27-be69-c67cd2bbd985
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definition | In the geologic timescale, the Kimmeridgian is an age or stage in the Late or Upper Jurassic epoch or series. It spans the time between 157.3 ± 1.0 Ma and 152.1 ± 0.9 Ma (million years ago). The Kimmeridgian follows the Oxfordian and precedes the Tithonian. | ||||||
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in scheme | chronounits original |