Difference between revisions of "Template: Cambrian graphical timeline" - New World Encyclopedia
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Latest revision as of 20:39, 1 April 2013
Key events in the Cambrian period
-545 —
–
-540 —
–
-535 —
–
-530 —
–
-525 —
–
-520 —
–
-515 —
–
-510 —
–
-505 —
–
-500 —
–
-495 —
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-490 —
–
←
Orsten Fauna
←
Burgess Shale
←
Sirius Passet Fauna
←
Chengjiang Fauna
←
First Trilobites
←
First Arthropod trace fossils
←
and Echinoderms
Neoproterozoic era
- (last era of the Precambrian super-eon)
Paleozoic era - (first era of the Phanerozoic eon)
An approximate timescale of key Cambrian events.
The Cambrian explosion took place during the lower Cambrian, but its duration is poorly defined.
Axis scale: millions of years ago.
The Cambrian explosion took place during the lower Cambrian, but its duration is poorly defined.
Axis scale: millions of years ago.
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