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 ?
NHMUK 36851, cranium and horn-cores; from the Pleistocene of the Narbada valley, India, described and figured by Rutimeyer (1878, p.
In his publications, Alvarado pointed out that the cichlid fossils from Turrucares are of Pleistocene age and not Miocene as was originally indicated by Gomez.
Bovidae et Giraffidae (Artiodactyla, Mammalia) du Pleistocene de Ternifine (Algerie).
Rancho La Brea stable isotope biogeochemistry and its implications for the paleoecology of Late Pleistocene coastal Southeast California.
Where the gypsum bed is absent beyond the pinchouts, the aeolianite rests directly upon the Pleistocene marine limestone which is capped by a possible hardground or a fossil beach rock with ripples.
We will investigate if population dynamics in Iberia can be explained in terms of European human mobility in the context of global Late Pleistocene climate change.
Caption: A pupa of a modern female leafcutter Megachile bee (left) has the same basic look as a Megachile male (right, CT scan) that dates to the Pleistocene, having been preserved in the La Brea Tar Pits.
This review is intended to provide the adequate faunal and paleocological framework necessary for understanding the factors that limited or conditioned human dispersal events into the Iberian Peninsula during the Pleistocene.
A late Pleistocene vegetation record is presented, using multi-proxy analysis from three palaeochannels in the northern (Bario) and southern (Pa'Dalih) Kelabit Highlands of Sarawak, Malaysian Borneo.
of Minnesota) begins with the need for an evolutionary study of culture history in the Pleistocene, presenting the paleoanthropological, behavioral, and methodological issues.
The quantitative global analysis of climate change in relationship to megafaunal extinction beginning approximately 100,000 years ago further contextualizes this period in human history; moreover, it calls into question the theory of Pleistocene overkill that has been widely accepted since it was first advanced by Paul S.
The presence of the Xujiayao and other Pleistocene human abnormalities therefore suggests unusual population dynamics, most likely from high levels of inbreeding and local population instability," he added.