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The atlas · Geological time · Dating

Outline · being written

Dating rock by its fossils

How fossils that lived briefly but widely let geologists match the age of rocks across the world.

The working diagram Two cliffs far apart, matched layer by layer by the fossils in them.
Page type
A lesson, led by a working diagram
Collection
Geological time, dating
Status
Planned and outlined. Every fact in it will be checked against a named source and listed on Sources before it goes up.

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