[DOC] [TLE] About the geologic time scale [PAR] For the next major contribution to the geologic time scale we turn to William Smith
, ... to smallest, this hierarchy includes eons, eras, periods, epochs, and ages. ... 
each era being recognized by its domination by a particular group of animals. [DOC] [TLE] Geologic time scale - Wikipedia [PAR] The geological time scale (GTS) is a system of chronological dating that relates 
geological ... It has evolved to describe an "epoch" starting some time in the past 
and on the whole .... for geologic periods with some even suggesting a virtually 
infinite age for Earth. ...... A Geologic Time scale 2004  Why, How and Where 
Next! [DOC] [TLE] Geologic Time Scale: Major Eons, Eras, Periods and Epochs - Video ... [PAR] The geologic time scale is an essential tool for understanding the history of Earth 
and the evolution of life. ... The Cenozoic Era: Definition, Time Period & Facts. [DOC] [TLE] The Geologic Time Scale - ScienceViews.com [PAR] With this understanding geologists are able to determine the ages of rock relative 
to ... down into sections which are called geological eras, periods, and epochs. ... 
An era of geologic time from the beginning of the Tertiary period to the present. [DOC] [TLE] The Earth's Geologic Time Scale Eons Eras Periods Epoch Life [PAR] Earth Earth's Geologic Geological Time Scale Line Eon Era Period Epoch ... 
Eons are divided into eras, which are in turn divided into periods, epochs and 
ages. [DOC] [TLE] The Geologic Time Scale [PAR] determine the absolute age of the divisions in the geologic time scale. ... geologic 
time ends and the next begins. ... Eras are subdivided into units of geologic time 
called periods. Geologic periods range in length from tens of millions of years to 
less ... Geologists further subdivide the periods of the Cenozoic Era into epochs. [DOC] [TLE] Geological time scale - HyperPhysics [PAR] The vast expanse of geological time has been separated into eras, periods, and 
epochs. ... In the most recent era, the Cenozoic, there is a further subdivision of 
time into epochs. ... It is sometimes referred to as the "age of mammals". ... But 
next to that sea vast continental sediments were deposited on the Colorado 
plateau. [DOC] [TLE] High School Earth Science/Geologic Time Scale - Wikibooks, open ... [PAR] These exceptional lengths of time seem unbelievable, but they are exactly ... 
Scientists have put together the geologic time scale to describe the order ... How 
do you determine the relative and absolute ages of rock layers? ... Eons may be 
further divided into smaller chunks called eras, and each era is divided into 
periods. [DOC] [TLE] Geologic Time Scale - Geological Time Line - Geology.com [PAR] Printable Geologic Time Scale - Geologcial Time Line from Geology.com. ... 
These time intervals are not equal in length like the hours in a day. ... Subdivision 
of periods into epochs can be done only for the most recent portion of the 
geologic... [DOC] [TLE] Geologic time scale - New World Encyclopedia [PAR] Apr 21, 2015 ... The geologic time scale is used by geologists and other scientists to ... is further 
divided successively into eras, periods, epochs, and stages. ... system of faunal 
stages of varying lengths, based on changes in the ... For over one hundred 
years, the age of the Earth and of the rock ... Eon, Era, Period1, Series/ [DOC] [TLE] GEOLOGIC EONS, ERAS and PERIODS - Paleontology and ... [PAR] Two or more periods comprise a geological Era. Two or more Eras form an Eon, 
the largest division of geologic time. Some periods are divided into epochs. [DOC] [TLE] Geologic Time - Tulane University [PAR] Oct 8, 2015 ... How the Geologic Column was developed so that relative age could ..... The 
result is the geologic column (on next page), which breaks relative geologic time 
... how much time a geologic Eon, Era, Period, or Epoch represents is a .... The 
Magnetic time scale, based on reversals of the Earth's magnetic field. [DOC] [TLE] Age of Earth: Creating a Time Line Scaled to the ...

Question: Next in length on the scale of geological time: age, epoch, period, era...
Answer: eon