What is Pleistocene?

What Does Pleistocene Mean

The geology is the science devoted to the study of the history of the planet Earth , focusing on the origins, evolution and characteristics of the materials that form. To facilitate his analysis, he resorts to a temporal frame of reference through various divisions and subdivisions of time.

On the geological time scale , we find periods , which are subdivided into epochs . The epochs, in turn, are subdivided into ages .
Pleistocene is called the first epoch of the Quaternary period , which is part of the Cenozoic era . The Pleistocene began two million years ago and lasted until about 10,000 years ago.

Pleistocene you should know that it is a neologism that was shaped using two Greek terms. On the one hand, "pleistos", which can be translated as "the most", and "kainos", which is synonymous with "new" and "recent".
It can be said that, between the periods of the Cenozoic era , is the Quaternary . This period has several eras: one of them, the first to be more precise, is the Pleistocene . At the end of the Pleistocene , the Holocene began , in force until today.
Tarantian , Ionian , Calabrian and Gelasian are the four ages that make up the Pleistocene . It should be noted that the last terrestrial glaciations took place at this time .
The Gelanian is the period that began 2.588 million years ago and ended 1806 million years ago. After him came the Calabrian (1806 - 781 million years), then the Ionian (781 - 126 million years) and, finally, the Tarantian, which is the predecessor of the Holocene epoch.
At times of the Pleistocene , therefore, large ice sheets covered a large portion of the territory of our planet . It was in this geological epoch that mammals established their predominance, with species such as the mammoth , the glyptodon and the smilodon .
It is important to mention that in the late Pleistocene Homo sapiens appeared on the African continent. Those early humans were hunter-gatherers and used stone and bone tools and utensils. The hunt progressed over the years, as the brain of Homo sapiens enlarged .
Other data of interest about the Pleistocene are the following:

-Among the birds that existed at that time, some stand out such as the athene cretensis, the fulica montanei, the pelagornis or the teratornis.

-It is also known as the Ice Age. That name came to him because at that time it is estimated that around 30% of our planet was covered by ice.

-During this period there was a cooling of the Earth that brought with it that different animal species were strongly altered and even disappeared.

-It is interesting to know that the so-called land bridges arose, which appeared under the sea. Among the most significant we can highlight the Bering land bridge.

-At this time it is established that the continents already occupied the place they have today.

-The experts in the Pleistocene point out that at this time there was a shortage of rain and that there was hardly any evaporation of seas and lakes.

Go up