Want this question answered?
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.
It is believed that the oldest mountain range is the Appalachians. They formed during the Ordovician Period which occurred about 480 million years ago. The Appalachians run for 1,500 miles and the highest peak is 6.684 feet.
Gondwana, which was made up of five of today's continents
qwety
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).
Mosses (Bryophyta).
The Silurian period.
Ordovician .
The period during which life began to move on land was the Ordovician Period. It was during this time that evidence of plant spores from living fossils were found on land.
Fish first appeared in the Ordovician Period.
You might see volcanic action.
Ordovician Period
copper
I have no idea what the oxygen levels were during the tertiary period!