-
paleozoic periods old life
The first multicellular atoms flourished on the earth -
cambrian 570m years ago
early marine life -
Period: to
paleiozoic
-
ordovician
there was more marine life -
Silurian 435m years ago
earlyiest plants and animals -
Devonian 395m years ago
earlyiest amphibians -
carboifourous
earliest reptiles and scale trees and seed ferns -
permian
extinction of types of marine animals -
trassic 225m
early dinos abumdant cycadsads and conifers -
Period: to
mesozoic
-
jurassic 195m yrs
early birds and mammals -
cretaceous
early flowering plants -
Period: to
cenozoic
-
tertiary
early palceental mammals -
quartnary
large carnivours
