New Astronomical Results Refine The Geological Time Scale Date: November 3, 2004 Source: Journal Astronomy & Astrophysics Summary: A team led by Jacques Laskar from the Institut de Mécanique ...

Geological Time Scale. 1. Cenozoic Era. Human develop in this period. This period is called 'Age of mammals'. Dinosaurs and many other species were extinct in this period.

A Brief History of Life. By Lexi Krock; Posted 02.01.02; NOVA; It's hard to wrap your mind around the concept of 4.5 billion years. For many of us, the Pyramids–built 4,500 years ago, a ...

The Geologic Time Scale 2012, or GTS2012, is the latest understanding of Earth's history, and the means by which geoscientists around the world investigate the rock record.