From Longman Dictionary of Contemporary EnglishPleistocenePleis‧to‧cene /ˈplaɪstəsiːn/ adjective HEbelonging to the period in the Earth’s history that started about two million years ago and ended about 10,000 years ago, when much of the Earth was covered with ice
Examples from the Corpus
Pleistocene• Given current attention spans, it may as well have come out during the Pleistocene.• The deep-sea core oxygen isotope record is a framework for a relative chronology for the Pleistocene.• Herb Caen created this species by linguistic splicing sometime in the Pleistocene Age.• Here you see a Pleistocene vision, life as it must have looked before humans stepped upright on to the savannah.Origin Pleistocene (1800-1900) Greek pleistos “most” + kainos “recent” 