Tuesday, September 18, 2012

Cenozoic Era

Beginning 70 million years ago, the Cenozoic is the last of five geological eras in the Earth geological history, extending up to the present time. Divided into two periods, Tertiary and Quaternary, the Cenozoic era is marked by the orogenic movement that formed today's highest mountain ranges, such as the Himalayas and the Andes mountain ranges, widespread of glacial ice, and the emergence of birds and mammals. Man appeared on Earth during the Quaternary period of the Cenozoic era.