Related articles:
Deep time
Timeline of evolution
Paleontology
Stratigraphy
Geochronology
Chronology
James Hutton
History of the Earth
Fossil
Holocene
Earth
Key terms:
time
geologic
periods
earth
time scale
geologists
strata
rocks
age
fossils
named
timeline
geologic time scale
defined
units
table
age of the earth
jurassic
tertiary
proposed
dating
geology
deposition
international commission on stratigraphy
upper
global
layers
estimated
laid down
cambrian
geologic periods
principles
deep time
geological time scale
divided
hutton
same time
geologic timescale
boundary
galactic year
early jurassic
marine
ago
subdivision
william smith
millions of years
recognized
chalk
quaternary
jean
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