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Quaternary Geochronology was created in 2006.
The Quaternary Period was in the Phanerozoic Eon.
quaternary
The second epoch of the Quaternary Period is called the Holocene epoch. It began around 11,700 years ago and continues to the present day.
The Quaternary Period began around 2.6 million years ago and continues to the present day. It is characterized by major climate fluctuations and the emergence of Homo sapiens.