edit]. Main articles: History of geology and History of paleontology. Graphical
The Geologic Time Scale in Historical Perspective. What is the origin of the
geologic time scale? The first people who needed to understand the geological ...
Online exhibits. Geologic time scale. Take a journey back through the history of
the Earth — jump to a specific time period using the time scale below and ...
THE STORY OF A. GEOLOGIC TIME. CHANGING EARTH. Presented by the
Department of Paleobiology. Eon. Era. Period. Epoch. 460. 920. 1380. 4600.
The Mesozoic Era is the next era on the Geologic Time Scale
. This made life have to adapt rather rapidly and increased the rate of evolution.
The Cenozoic Era has not ended and most likely will not end until another mass extinction period. More »
Printable Geologic Time Scale - Geologcial Time Line from Geology.com. ...
Geologists have divided Earth's history into a series of time intervals. These time
Oct 3, 2014 ... They had no way of knowing the ages of individual rock layers in years ... Piece
by piece, geologists constructed a geologic time scale, using ...
The Modern Geologic Time Scale, as shown above, documents intervals of
geologic ... In addition to the relative dating of periods in Earth's history for which
Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-
billion-year history. A lot has happened in that time. Earth formed and oxygen
With this understanding geologists are able to determine the ages of rock relative
to one another. By assembling all these layers together, scientists have worked ...