Ordovician Period (feb 6, 488000000 BC – feb 6, 416634490 BC)
Description:
The area North of the tropics was mostly entire ocean, and most of the world's land was collected into the Southern supercontinent GondWana.Added to timeline:
Date:
feb 6, 488000000 BC
feb 6, 416634490 BC
~ 5883516 years