Life timeline ... Axis scale: millions of years. ... Main articles: History of geology
and History of ...
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 ...
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
Printable Geologic Time Scale - Geologcial Time Line from Geology.com. ...
Geologists have divided Earth's history into a series of time intervals. These time
Geologic time chart of major biological and geological eras, with the pivotal
events, eons, eras, periods and ... The first geologic time scale was proposed in
1913 by the British geologist Arthur Holmes (1890 - 1965). .... Geography/History
The vast expanse of geological time has been separated into eras, periods, and
epochs. ... of fossils found, taken as indicators of a time period in Earth's history.
With this understanding geologists are able to determine the ages of rock ... An
era of geologic time from the beginning of the Tertiary period to the present.
... J.W., Bowring, S.A., and Babcock, L.E., compilers, 2012, Geologic Time Scale v
. .... The numbered epochs and ages of the Cambrian are provisional.
Note that the compilers are still accepting comments on the overall content of
time scale. Offer your comments or join in the discussion on GSA's Facebook
Biological and Geologic Timeline of the Earth. ... Eocene Epoch - An epoch from
54.8 to 33.9 million years ago with four Ages: Ypresian, Lutetian, Bartonian, and ...