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Pleistocene Series
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geologic time
geologic time The stratigraphic chart of geologic time.

Pleistocene Series

stratigraphy
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Article History

Pleistocene Series, worldwide division of rocks deposited during the Pleistocene Epoch (2.6 million to 11,700 years ago). It overlies rocks from the Pliocene Epoch (5.3 million to 2.6 million years ago) and is itself overlain by rocks of the Holocene Series (from 11,700 years ago to the present); together these two latter divisions make up the Quaternary System. By international agreement, the Global Stratotype Section and Point for the base of the Pleistocene Series coincides with the base of marly shales sitting atop a sapropel of the Mediterranean Precession Related Sapropels (MPRS) 250 on the southern slope of Monte San Nicola near Gela, Sicily, Italy. The marker is located about 1 metre (about 3.3 feet) above the strata indicative of the Gauss-Matuyama paleomagnetic boundary and slightly below the final occurrence of the calcareous nannofossil Discoaster pentaradiatus.

This article was most recently revised and updated by John P. Rafferty.