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 ?
By combining cooked roots and tubers as a staple with protein and fats from shellfish, fish, small and large fauna, these communities were able to optimally adapt to their environment, indicating great ecological intelligence as early as 120,000 years ago.
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.
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.ibtimes.com/climate-change-news-dead-sea-salt-shows-worst-drought-humans-have-ever-seen-2514047) severe drought in the Middle East.
Excavations in southern China's Fuyan Cave produced 47 human teeth dating to between 80,000 and 120,000 years ago, paleoanthropologists report October 14 in Nature.
However, a team of archaeologists excavating in India then claimed to have found evidence that modern humans were there before the eruption - possibly as early as 120,000 years ago, much earlier than Europe or the Near East were colonised.
The system responded 160,000 years ago and the new volcano began to form 120,000 years ago.
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 study analyzed DNA samples of 483 people belonging to 148 populations from around the world.
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.
They also looked at samples from an additional 23 polar bears, including one that lived 120,000 years ago, to get a sense of the polar bear's evolutionary history.
The researchers estimate that the lake vanished 120,000 years ago. A warmer climate at that time could have dried up the Dead Sea's water sources.