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sep 15, 13 - The Dinosaurs Appeared on Earth

Description:

Dinosaurs first appeared approximately 230 million years ago. The first dinosaurs lived in the Triassic period and they evolved from reptiles.

Added to timeline:

Astronomy Project Sam Olivia Mikayla

ByOlivia Tebbetts

7 Oct 2022

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Date:

sep 15, 13

Now

~ 2013 years ago

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