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Cambrien 570-500mya (Palozoic 570-225mya)
Was the period that multi-celluar life forms florised on earth The life lived in the huge ocean on earth that came to be through many years in the precambrien. Trilobites are the dominate species or organisms. Also things such as sea urchins, starfish and sea cucumbers exsited. -
Ordovician 500-435m (Paleozoic 570-225mya)
A rich varity of sea life and seaplants started to appear in the oceans. The continents were one big continent. -
Silulrian 445-395mya (Palozoic 570-225mya)
There was jawed and bony fish. Life also began to appear on land in the form of small, moss-like, plants which grew beside lakes, streams, and coastlines, and also in the form of small terrestrial arthropods. -
Devonian 395-345mya (Palozoic 570-225mya)
Armored fish(Ansestor of sharks) go extinct but a abundance of several species of fish earliest amphibians and ammonites. -
Carboniferous 395-345m (Palozozic 570-225mya)
ALso called the the Mississppian and Pennsylvanian period. This period had a abundant amount of sharks and coal has started to form the same with swamps. The earliest reptiles, scale trees and seed ferns have come to land -
Permian 280-225m (Palozoic 570-225mya)
The extinction of many types of marine animals including trilobites. Pangea became established. -
Triassic 225-195m (Mesozoic)
Earliest dinosaurs and abundant cycads and conifer plants. The land was hot like a swamp. The organisms were kinda like mammals and reptiles at the same time. -
Jurassic 195-136m (Mesozoic)
Earliest birds and mamals are abundant. Dinosaurs have evolved and there is abundant amount of ammonites. The world is still like a swamp. -
Cretacous 136-65m (Cenozoic)
Earliest flowering plants, climax of dinosaurs before metor strike which is their extinction. Great decline of brachiopods and abundance of bony fish. -
Teritary 65-1.8m (Cenozoic)
The mammals have evolved to become huge and can run. such as the mega slouth or megaladon. Modern mamals evolved from these mega animals. -
Quaternary 1.8-present m (cenozoic)
Large Carnovoirs, Neanderthals, Humans, and Masteodons have or are still existin in this time period. We today are in this time period.
