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541 BCE
Cambrian
many marine invertebrates with external skeleton (arthropods) -
Period: 541 BCE to 252 BCE
Paleozoic era
The Paleozoic occurs after the disintegration of the supercontinent Pannotia and ends with the formation of the supercontinent Pangea. During most of the era the earth's surface is divided into a relatively small number of continents.This era is divided into six periods: Cambrian, Orodovician, Silurian, Debonian, Carboniferous and Permian In this era mainly lived trilobite, fern and lepidodendron, the first vertebrates, cartilaginous fish, amphibians and reptiles appear. -
Period: 541 BCE to 485 BCE
Cambrian Period
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485 BCE
Ordovician
Rodinia breaks up. -
Period: 485 BCE to 444 BCE
Ordovician Period
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444 BCE
SIlurian
First land plants -
Period: 444 BCE to 419 BCE
Silurian Period
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419 BCE
Devonian
First Amphibians and fish diversify -
Period: 419 BCE to 359 BCE
Devonian Period
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359 BCE
Carboniferous
First reptiles, Pangaea forms -
Period: 359 BCE to 299 BCE
Carboniferous Period
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299 BCE
Permian
reptiles diversify -
Period: 299 BCE to 252 BCE
Permian Period
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252 BCE
Triassic
First dinosaurs and first mammals -
Period: 252 BCE to 201 BCE
Triassic Period
-
Period: 251 BCE to 66 BCE
Mesozoic Era
The Mesozoic era is known as the age of the dinosaurs. During this era, Pangea was fragmented and the continents were moving towards their current position. The climate was quite warm and this helped the evolution and diversification of new species. This era is divided into three periods, Cretaceous, Jurassic and Triassic. -
201 BCE
Jurassic
Pangea begins to break up and is first birds are create -
Period: 201 BCE to 145 BCE
Jurassic Period
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145 BCE
Cretaceous
First plants with flowers and extinction of dinosaurs and ammonites -
Period: 145 BCE to 66 BCE
Cretaceous Period
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66 BCE
Tertiary
Development and diversification of mammals, first humans -
Period: 66 BCE to 2 BCE
Tertiary Period
-
Period: 66 BCE to 50
Cenozoic era
The Cenozoic era is known as the era of mammals, since these arose after the extinction of the dinosaurs. During this era, the continents were positioned as we know them today. The weather has been a long-term cooling period. In this era, species began to evolve into what they are today, including humans. This era is divided into two periods, Tertiary and Quatermary. -
2 BCE
Quaternary
Glaciation in the Northern Hemisphere -
Period: 2 BCE to 50
Quaternary Period