-
Period: 541 BCE to 252 BCE
PALEOZOIC ERA
Great development and reproduction of species with shell or exoskeleton -
Period: 541 BCE to 485 BCE
CAMBRIAN
-
510 BCE
CAMBRIAN EXPLOSION
Diversification of organisms -
Period: 485 BCE to 444 BCE
ORDOVICIAN
-
460 BCE
CONTINENTS WERE MADE
Most of the world’s land masses came together to create the Gondwana supercontinent. Gondwana moved south throughout the period, and finally settled in the South Pole. -
Period: 444 BCE to 419 BCE
SILURIAN
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430 BCE
EXTINCTION OF ORDOVICIAN-SILURIAN
Extinction was global during this period, eliminating between 49% and 60% of marine genera and almost 85% of marine species. -
Period: 419 BCE to 359 BCE
DEVONIAN
-
390 BCE
MASS EXTINTION OF THE DEVONIAN
Extinction events: Kellwasser event and Hangenberg event. -
Period: 359 BCE to 299 BCE
CARBONIFEROUS
-
330 BCE
COLLAPSE OF THE CARBONIFEROUS RAINFOREST
Altered the vast coal forests that covered the equatorial region of Euramerica Collapse of the carboniferous rainforest. -
Period: 299 BCE to 252 BCE
PERMIAN
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252 BCE
MASS EXTINCTION OF THE PERMIAN-TRIASSIC
95% of all life on Earth disappeared. -
Period: 252 BCE to 66 BCE
MESOZOIC ERA
Is reconoized as the age of dinosaurs because they appeared in this time -
Period: 252 BCE to 201 BCE
TRIASSIC
-
225 BCE
ANIMAL EVOLUTION IN TRIASIC PERIOD
Dinosaurs and mammals evolved, the first observation of mammals occurred in the late Triassic period. -
Period: 201 BCE to 145 BCE
JURASSIC
-
170 BCE
FRACTURE OF THE SUPERCONTINENT PANGEA
A slow but steady rifting process occurred. -
Period: 145 BCE to 66 BCE
CRETACEOUS
-
100 BCE
MASS EXTINCTION OF ANIMAL AND PLANT SPECIES
All dinosaurs became extinct, most of the smaller terrestrial reptiles survived. Possible causes: weather events, meteorite impact or extraterrestrial causes. -
Period: 66 BCE to 2 BCE
CENOZOIC ERA
Dinosaurs disappeared and continents separades -
Period: 66 BCE to 2 BCE
TERTIARY
-
30 BCE
FIRST APES OR PRIMATE-LIKE SPECIES
Several families appeared in Europe and North Africa, in North America and Europe and North America, Europe, Egypt and Asia. -
15 BCE
EVOLUTION OF HOMINIDS
They evolved and expanded in Africa. Fossils have been discovered in Eastern and Southern Africa. -
Period: 2 BCE to 20
QUATERRNARY