-
Period: 543 BCE to 490 BCE
Cambrian
-
541 BCE
Cambrian
In the Cambrian period, marine invertebrates with external skeleton (Arthpods) appear. -
Period: 541 BCE to 252 BCE
PALAEOZOIC ERA
-
Period: 490 BCE to 443 BCE
Ordovician
-
485 BCE
Ordovician
Widespread marine algae, and fish without jaws -
444 BCE
Silurian
First great extinction, first land plants -
Period: 443 BCE to 417 BCE
Silurian
-
419 BCE
Devonian
At this stage there was a diversity of marine life, and the first amphibians appeared. -
Period: 417 BCE to 359 BCE
Devonian
-
359 BCE
Carboniferous
The first reptiles and forests of giants ferns appeared. -
Period: 359 BCE to 299 BCE
Carboniferous
-
299 BCE
Permian
Reptile diversity -
Period: 299 BCE to 252 BCE
Permian
-
Period: 252 BCE to 66 BCE
MESOZOIC ERA
-
250 BCE
Triassic
Appears the first dinosaurs and mammals -
Period: 250 BCE to 206 BCE
Triassic
The Triassic is an event that lasts approximately 50 years.
In this period the first dinosaurs and mammals appear. -
206 BCE
Jurassic
-Appears first flying and aquatic reptiles.
-Appears the first birds.
-Gimnosperme plants dominate the earth's surface -
Period: 206 BCE to 144 BCE
Jurrasic
-
145 BCE
Cretaceous
-First plants with flowers.
-Extinction of dinosaurs and ammonites. -
Period: 144 BCE to 65 BCE
Cretaceous
-
66 BCE
Tertiary
-Alpine orogey begins
-masive extinction from a meteorite impact -
Period: 66 BCE to 2
Tertiary
-
Period: 66 BCE to 50
CENOZOIC ERA
-
2 BCE
Quaternary
-Development and diversification of animals
-Glaciation in the northern hemisphere -
Period: 2 to 50
Quaternary