Entradas

Mostrando entradas de julio, 2017

Olingocene Period Katherin Molina

Imagen
Third period of the Tertiary Age. It extended for 14 million years (38 - 24 million years). Its name means "small life" Beginning of the formation of the mountain range of the Alps and the Apennines.  Mammals dominated life on Earth. The camels are extinguished in America. Migrations of Oreodontes  in this period the freezing of the earth begins klsdji
Imagen
  The quaternary period began 2.6 million years ago and extends into the present. The quaternary is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy. This period is divided into two epochs: the  Pleistocene  (2.588 million years ago to 11.7 thousand years ago) and the  Holocene  (11.7 thousand years ago to today). The informal term "Late Quaternary" refers to the past 0.5–1.0 million years.  https://en.wikipedia.org/wiki/Quaternary THE PLEISTOCENE: Often colloquially referred to as the Ice Age, is the geological epoch which lasted frim about 2,588,000 to 11,700 years ago, spanning the world´s most recent period of repeated glaciations. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The Pleistocene  is divided into four stage ora ges, the Gelasian, Calambrian, Ionian and Tarantian. 
Imagen
CENOZOIC ERA    CENOZOIC ERA                                                     Is an Era of eon Phanerozoic PERIOD: Tertiary and Quaternary ________________________________________________________________________________                                                                     TERTIARY PERIOD TERTIARY - PALEOGENE:   Paleocene Epoch   (marcela),  Paleocene Epoch Paleocene Epoch ,  also spelled  Palaeocene Epoch , first major worldwide division of rocks and time of the  Paleogene Period , spanning the interval between 66 million and 56 million years ago.  The most complete picture of Paleocene terrestrial life and  environments  is afforded by the rock record of North America The Paleocene is subdivided into three ages and their corresponding rock stages: the  Danian ,  Selandian , and  Thanetian . The die-off of the   dinosaurs   in the prior   mass extinction   left unfilled ecological niches worldwide, and the name "Pal