https://gcmdservices.gsfc.nasa.gov/kms/concept/f431ccfe-5f30-4faa-84d0-4621fb602f10
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definition | The Coniacian is an age or stage in the geologic timescale. It is a subdivision of the Late Cretaceous epoch or Upper Cretaceous series and spans the time between 89.8 ± 1 Ma and 86.3 ± 0.7 Ma (million years ago). The Coniacian is preceded by the Turonian and followed by the Santonian. | ||||||
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in scheme | chronounits original |