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Cambrian 570m-500m
Earlist record of marine life. The Trilobites are dominant. -
Period: to
Paleozoic
Earliest time period. -
Ordovician 500m-435m
Echinoderms a.k.a the starfish, sand dollar, sea urchin and sea cucumbers thrived. Invertabres are dominant and the mullusks become plentiful. The earlist fish are jawless and later become jawed and amored fish. -
Silurian 435m-395m
The period of the earlist terrestrial plants and animals. Tikaaliik Euryplorids devolped. -
Devonian 395-345m
The armored fish go extinct but several species of fish begin to thrive. The earlist amphibians and ammonites begin. -
Carboniferous 345-280m
Many sharks and amphibians come to being. There are large swamps,coal forming forests, scale trees and seed ferns. The earlist reptiles come into life. -
Permain 280-225m
The extinction of many types of marine animals including the trillubites. -
Period: to
Mesozoic
Middle time period -
Triassic 225m-195m
Earlist Dinosuars arrive onto earth and there are an abundance of Cycads. -
Jurassic 195m-135m
The earliest bunch of birds and mammals while the dinosaurs and ammonites begin to thrive. -
Cretaceous 136m-65m
The start of flowering plants. The thriving time of the dinosaurs led by their mass extinction along with the great decline of brachiopods. Bony fish was at an abundance though. -
Period: to
Cenozoic
Present/new life -
Tertiary 65-1.8m
Earlist mammals lived such as modern mammals and large running mammals. -
Quaternary 1.8m-present
There are large carnivores and neaderthols and humans are coming into the world.
