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Cambrian
The first time multicellular life forms appear and flourished on earth. -
Ordovician
the earliest fish and the invertebrates dominanted the era. -
Silurian
It was the eharliest terrestrial plants and animals in this era. -
Devonian
Devonian was the era of the aromed fish that later will go extinct. -
Carboniferous
Carboniferous period was when the sharks and amphibians would be on earth. also large swamps and coal forming forests would rule. the earliest reptiles would apear in this period. -
Permian
In this period most of the marine animals would be estincted including the trilobites. -
Triassic
the earliest dinosaurs would be on earth at this time, later in time they would rule the earth. -
Jurassic
in this period the earliest birds and mammals would be on earth. -
Cretaceous
In this period, the climax of the dinosaurs and then their ectinction ouccer at the end od the era. -
Tertiary
the earliest placental mammals, modern mammals, and the large running mammals -
quaternary
large cornivores would now live in this period, animals like neanderthals, humans, and mastodons.