Of or of the geologic time, stone series, or sedimentary build up of previous of two epochs of this Quaternary Period, characterized by the alternate appearance and recession of north glaciation, the appearance and globally scatter of hominids, therefore the extinction of several land mammals, for instance the mammoths, mastodons, and saber-toothed tigers. See dining table at geologic time.
Of a geologic epoch in the Neogene duration from about 1.7 million to 11,000 years back; marked by the advancement of guy, as well as the extinction for the large mammals.
Of or with respect to the epoch, or perhaps the build up, after the Tertiary, and immediately preceding guy.
The Pleistocene Epoch or its system of build up.
title written by geologists, with more or less vagueness, into the reduced division for the Quaternary or Post-tertiary deposits, or even to that unit which cannot precisely be included beneath the designation recent. See Post-tertiary, Tertiary, and Quaternary.
from two million to 11 thousand years ago; extensive glaciation for the northern hemisphere; the full time of real human development