-
1 BCE
Ice Age ended; current ecosystems developed and stabilized
Ice Age ended; current ecosystems developed and stabilized -
1 CE
Modern humans appear (Dec 31)
Modern humans appear -
4
First hominids (Dec 31)
(ancestors of modern humans) -
66
K-T mass extinction (Dec 26)
K-T mass extinction, 75% species died off including dinosaurs, beginning of the Cenozoic Era -
130
First flowering plants appear (Dec 21)
First flowering plants appear -
150
First birds evolve from dinosaurs (Dec 19)
First birds evolve from dinosaurs -
175
Pangea breaks up (Dec 17)
Pangea breaks up -
200
Small mammals evolve (Dec 15)
Small mammals evolve -
230
Dinosaurs appear (Dec 13)
Dinosaurs appear -
251
The Great Dying (Dec 11)
“The Great Dying” largest mass extinction in Earth’s history, 96% of species lost -
360
Carboniferous period (Dec 2)
Carboniferous period. Land plants dominated by fern-like gymnosperms, insects abundant and large -
430
Plants and animals colonize the land (Nov 27)
Plants and animals colonize the land -
485
First fish evolve (Nov 23)
First fish evolve -
540
Cambrian Explosion (Nov 18)
the enormous expansion in life diversity in oceans -
Nov 13, 600
Ozone layer forms
Ozone layer forms protecting land animals from UV radiation -
Oct 29, 800
First multicellular life arises
First multicellular life arises -
Eukaryotic cells appear
Eukaryotic cells appear. Probably develop when Prokaryotic cells engulf another and form a symbiosis which eventually becomes organelles -
Great Oxygenation Event
Great Oxygenation Event, mass extinction of anaerobic bacteria, beginning of Proterozoic Epoch -
oxygenation of atmosphere
Photosynthesizing cyanobacteria evolve beginning oxygenation of the atmosphere -
Earliest Fossils
Bacteria split from Archaea, the first organisms that produce ATP, earliest fossils -
First life
First life appears on Earth -
Oldest preserved rocks
The oldest preserved rocks are found during this time period -
Beginning of Archaean Epoch
Earth is constantly bombarded by meteorites, beginning of Archaean Epoch -
Oceans Form
The first oceans form -
Moon Forms
The moon is formed when a small planet-sized body collides with the Earth -
Earth Forms
Earth forms from an accretion of stellar nebula disk, beginning of the Hadean Epoch.