-
Period: 541 BCE to 552 BCE
PALEOZOIC ERA
-
Period: 541 BCE to 485 BCE
Cambrian
-
500 BCE
The arthropods
Marine invertebrates with external skeletons -
Period: 485 BCE to 444 BCE
Ordovician
-
460 BCE
Marine algae
And fishes without jaws -
Period: 444 BCE to 419 BCE
Silurian
-
430 BCE
First land plants
-
Period: 419 BCE to 359 BCE
Devonian
-
385 BCE
First amphibians
Fish diversity -
Period: 359 BCE to 299 BCE
Carboniferous
-
320 BCE
First reptiles
And forest of gigants ferns -
Period: 299 BCE to 252 BCE
Permian
-
270 BCE
Reptile diversity
-
Period: 252 BCE to 66 BCE
MESOZOIC ERA
-
Period: 252 BCE to 201 BCE
Triassic
-
225 BCE
First dinosaurs
And first mammals -
Period: 201 BCE to 145 BCE
Jurassic
-
170 BCE
First birds
First flying and aquatic reptiles, gymosperm plants dominate the earth's surface -
Period: 145 BCE to 66 BCE
Cretaceous
-
100 BCE
Extinction of dinosaurs and ammonites
and the first plants with flowers -
Period: 66 BCE to 50
CENOZOIC ERA
-
Period: 66 BCE to 2 BCE
Tertiary
-
35 BCE
Development and diversification of mammals
And glaciation in the nothern hemisphere -
Period: 2 BCE to 10
Quaternary