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Ordovician Period
The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
there was plate tectonic movement
The Ordovician period came first. It started 485.4 million years ago and finished 443.8 million years ago. Then came the Silurian and Devonian periods, followed at 358.9 million years ago by the Carboniferous.
in the Jurassic period the atmosphere was about 14.7. in the Jurassic period the atmosphere was about 14.7.
The Ordovician Period
The Silurian period.
Ordovician .
Ordovician Period
copper
Cambrain
Ordovician period
Ordovician Period
Ordovician Period
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The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
Algae was the dominant plant of the Ordovician. There were little to no other plants (other then algae) during the Ordovician. In the Ordovician, the common types of algae were Stromatolites (Blue green algae), and Tetradium (Red algae).