用戶:Ericchiueric/沙盒

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於 2022年8月21日 (日) 21:05 由 imported>Ericchiueric 所做的修訂

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Example Timeline

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Nemakit-Daldynian

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Base of the Cambrian

Middle Cambrian

Cambrian explosion

An approximate time-scale of events
at the base of the Cambrian Period.
Axis scale is in millions of years ago.

取自 "https://www.unitedbook.org/index.php?title=用戶:Ericchiueric/沙盒&oldid=9708"