PALEOZOIC ERA (1 gen 542000000 anni a. C. – 30 dic 251000000 anni a. C.)
Descrizione:
GEOLOGICAL:-Start of Andean-Saharan ice age.
- Atmospheric oxygen levels reach over 30%
BIOLOGICAL:
-Animals with shells appear
-Ferns and seed-bearing plants appear
GEORGIA:
-the sea flooded over the eastern edge of North America, a thick sequence of shallow marine sediments was deposited
Aggiunto al nastro di tempo:
Data:
1 gen 542000000 anni a. C.
30 dic 251000000 anni a. C.
~ 5883516 years