Pleistocene

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Pleistocene

of, denoting, or formed in the first epoch of the Quaternary period, which lasted for about 1 600 000 years. It was characterized by extensive glaciations of the N hemisphere and the evolutionary development of humans

Pleistocene

 

the first division, corresponding to the longest epoch, of the Anthropogenic (Quaternary) period. The Pleistocene is characterized by a general cooling of the earth’s climate and periodic occurrence of extensive continental glaciation in the middle latitudes. Some researchers, including the Soviet geologist V. I. Gromov, classify the beginning of the Pleistocene as a separate epoch preceding the Pleistocene proper. This separate epoch, called the Eopleistocene, includes the Upper (Late) Pliocene, which is classified by most researchers in the Neogene.

The term “Pleistocene” was proposed in 1832 by the British geologist C. Lyell for the marine deposits immediately preceding deposits of the modern period because of the predominance of presently existing forms of fauna in these deposits.

Pleistocene

[′plī·stə‚sēn]
(geology)
The older of the two epochs of the Quaternary Period, spanning about 1.8 million to 10,000 years ago. It represents the interval of geological time (and rocks accumulated during that time) extending from the end of the Pliocene Epoch (and the end of Tertiary Period) to the start of the Holocene Epoch. It is commonly characterized as an epoch when the earth entered its most recent phase of widespread glaciation. Also known as Ice Age; Oiluvium.
References in periodicals archive ?
Wilson of the College of Wooster, he reported that sea levels were considerably less stable than earlier thought: They oscillated up and down by 13 to 20 feet over a few thousand years about 120,000 years ago during the Last Interglacial, a warm period when the climate resembled today's.
If sea levels only 120,000 years ago were about the same as they are now, then the global ratio of ice-to-water was probably similar to what it is today.
In the past year, Homo sapiens remains have been found at multiple sites in southern and central China, going back to between 70,000 and 120,000 years ago.
sapiens left the continent as early as 120,000 years ago, dispersing east and south, from the Arabian Peninsula or the eastern Mediterranean, archaeologist Robin Dennell of the University of Exeter in England writes in Nature.
Their findings will indicate whether the ice sheet melted at the warmest point between the two most recent global ice ages, around 120,000 years ago, when sea levels rose by up to six metres.
Researchers who recently drilled out some samples found that during two warmer periods - one of them about 120,000 years ago and another about 10,000 years ago, both following ice ages - there would have been (http://www.
The system responded 160,000 years ago and the new volcano began to form 120,000 years ago.
Washington, April 11 ( ANI ): During the last interglacial period, approximately 120,000 years ago, Dead Sea came close to drying up entirely, researchers under a drilling project have found.
Ancient people left Africa as early as 120,000 years ago, so the Chinese fossils might be those of early migrants who evolved in relative isolation for tens of thousands of years without contributing genetically to people today, Curnoe suggests.
It is known that some 120,000 years ago - a mere tremor in the eyelid of time - the mean temperature of the world was five degrees warmer than it is now.
One of the studies found that the ancestry of the natives of Papua New Guinea, north of Australia, could be traced back to an earlier migration that occurred 120,000 years ago.
The researchers estimate that the lake vanished 120,000 years ago.