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4800 BCE
1st life forms 4:10 h
Prokaryotic and unicellular organism -
Period: 4600 BCE to 541 BCE
Precambrian
Guide fossil: Stromatolites Geological event: There was a big meteoric bombardement. The earth,the moon and the lithosphere was formed. Climate event: The salt level of the seas increased.First Ice Age. Oxygen was lacking. -
2100 BCE
1st most complex life forms 9:07 h
Eukaryotic and pluricellular organism -
542 BCE
Great explosion of life 21:10 h
The first explosion of life occurs where new species of living beings appear -
Period: 541 BCE to 252 BCE
Paleozoic
Guide fossil: Trilobites Geological event: Pangea formation.Intense volcanism and orogenies Climate event: Glaciations and global warming -
485 BCE
First terrestrial plants (gymnosperms) 21:48 h
The first plants appear without terrestrial flowers (ferns) -
480 BCE
Age of the fish 21:37 h
Appear those many species of fishes with jaw or jawless -
365 BCE
Amphibian age 22:13 h
They evolve amphibians from freshwater fish to "fish" with fleshy, lobed fins similar to legs -
270 BCE
Age of the reptiles 22:43 h
The first reptile was the Hylonomus, reptiles emerged from amphibians such as the batrazium -
Period: 252 BCE to 66 BCE
Mesozoic
Guide fossil: Ammonites,Belemnites and Quercus Geological event: At the beginning of the Triassic, Pangaea begins to separate and the continents were formed Climate event: Extreme aridity especially in the interior of Pangaea although over the course of the era it evolves into a humid tropical climate. -
130 BCE
1st angiosperms 23:22 h
The first flowering plants appear and the first record of the flowering plant is Montsechia vidallii -
66 BCE
Age of the birds 23:39 h
Birds appear from the evolution of a dinosaur exactly from the Deinonychus. -
Period: 66 BCE to
Cenozoic
Guide fossil: Nummulites Geological event: Continental drift ends (the formation of the continents) Climate event: Ice age -
200
1st Homo sapiens 23:59 h
oldest fossil of homo sapiens dates back 200,000 years,also this species belongs to the family of hominids -
250
1st hominids 23:53 h
the first hominids spread across Africa, Europe and Asia.