Agenian
The Agenian age is a period of geologic time (23.8—20 Ma) within the Miocene used more specifically with European Land Mammal Ages. It follows the Orleanian age and overlaps the Aquitanian and Burdigalian ages.
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Wikipedia
The Agenian age is a period of geologic time (23.8—20 Ma) within the Miocene used more specifically with European Land Mammal Ages. It follows the Orleanian age and overlaps the Aquitanian and Burdigalian ages.