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*A large scale global warming trend.
* Trilobites fossil discovered
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*Proliferation of life in marine ecosystems
*Sea levels were very high
*The weather was warm -
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*The Earth entered a long phase of warm greenhouse
* Glaciers melting cause sea levels to rise
*The appearance of the first terrestrial organisms : plants
*An extinction of small marine species -
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*A large number of new species was appeared
*Those that already existed were evolved to more advanced ones
*The first species of land animals emerged
*Many species became extinct -
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*Formation of new mountains and ranges
*The decrease in sea level due to coal
*Appearance of first reptiles
*Formation of the pangea -
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*There was a shrinkage of the swamps
*Insects evolved to their modern appearance
*Mass extinction of rugose corals, trilobites, plants…
*Reptiles diversity and are abundant -
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*The formation of deserts and evaporites
*Dinosaurs and mammals appeared
*The climate was generally hot and dry.
*20% of marine animals disappeared
*The rupture of Pangea and the opening of the Sea of Tethys. -
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*Giant dinosaurs and marine reptiles dominate
*Flying reptiles, birds and modern type insects appear
*The predominant forests were coniferous -
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*The first flowering plants appeared
*The fracture of the Supercontinent of Pangea began.
*Extinction of dinosaurs and ammonites
*Primitive mammals and birds increase -
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*A major climate transition occurred
*The emergence of grass species
*Of the dinosaurs, only the birds remained.
*Among the new species appeared the large flightless birds -
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*Rise of human civilization
*Glaciers formed (the glaciation)
*An increase in biodiversity
*Development of mammals