-488,300,000 | EVOLUTION Ordovician period and Early Ordovian epoch begin on Earth. First extinction event. |
-488,000,000 | EVOLUTION Fish develop jaws, gills and armor plating. |
-475,000,000 | EVOLUTION Plants move onto land. |
-471,800,000 | EVOLUTION Middle Ordovian epoch begins on Earth. |
-461,000,000 | EVOLUTION Late Ordovian epoch begins on Earth. |
-450,000,000 | EVOLUTION Arthropods move onto land. |
-443,700,000 | EVOLUTION Silurian period and Early Silurian or Llandovery epoch begin on Earth. |
-440,000,000 | EVOLUTION Ordovician-Silurian extinction event is complete. |
-428,200,000 | EVOLUTION Wenlock epoch begins on Earth. |
-423,000,000 | EVOLUTION Late Silurian or Ludlow epoch begins on Earth. |
-418,700,000 | EVOLUTION Pridoli epoch begins on Earth. |
-416,000,000 | EVOLUTION Devonian period and Early Devonian epoch begin on Earth. |
-400,000,000 | EVOLUTION The first insects and sharks evolve on Earth. |
-397,500,000 | EVOLUTION Middle Devonian epoch begins on Earth. |
-385,300,000 | EVOLUTION Late Devonian epoch begins on Earth. |
-375,000,000 | EVOLUTION Tiktaalik (lobe-finned) fish evolve on Earth. |
-370,000,000 | EVOLUTION Cladoselache, a high-speed shark, develops on Earth. |
-365,000,000 |
EVOLUTION Late Devonian extinction occurs on Earth.
-365,000,000
|
|
EVOLUTION New insect species evolve on Earth.
| -365,000,000
|
|
EVOLUTION Fish evolve into tetrapods on Earth.
| -360,000,000
|
|
EVOLUTION Plants develop seeds on Earth.
| -360,000,000
|
|
EVOLUTION The golden age of sharks begins on Earth.
| -360,000,000
|
|
EVOLUTION Creation of Wooleigh crater and Siljan Ring on Earth.
| |
-359,200,000 | EVOLUTION Carboniferous period and Early Mississippian epoch begin on Earth. |
-350,000,000 | EVOLUTION Karoo Ice Age begins on Earth. |
-345,300,000 | EVOLUTION Middle Mississippian epoch begins on Earth. |
-326,400,000 | EVOLUTION Late Mississippian epoch begins on Earth. |
-318,100,000 | EVOLUTION Early Pennsylvanian epoch begins on Earth. |
-311,700,000 | EVOLUTION Middle Pennsylvanian epoch begins on Earth. |
-306,500,000 | EVOLUTION Late Pennsylvanian epoch begins on Earth. |
-300,000,000 |
EVOLUTION Supercontinent Pangea forms on Earth.
-300,000,000
|
|
EVOLUTION Reptiles develop eggs, insects develop wings, forests cover the Earth.
| |
-299,000,000 | EVOLUTION Permian period and Cisuralian epoch begins on Earth. |
-286,000,000 | EVOLUTION The golden age of sharks ends on Earth. |
-280,000,000 | EVOLUTION Dragonflies develop 2-foot wing spans. Vertarates, reptiles eveolve on Earth. |
-270,600,000 | EVOLUTION Guadalupian epoch begins on Earth. |
-260,400,000 | EVOLUTION Lopingian epoch begins on Earth. |
-256,000,000 | EVOLUTION Mammel-like reptiles develop on Earth. |
-251,400,000 | EVOLUTION Mesozoic era, Triassic period and Early Triassic epoch begin on Earth. |
-250,000,000 |
EVOLUTION Karoo Ice Age ends on Earth.
-250,000,000
|
|
EVOLUTION Permian-Triassic extinction event wipes out 90% of all animals.
| |
-245,000,000 | EVOLUTION Middle Triassic epoch begins on Earth. |
-228,000,000 | EVOLUTION Late Triassic epoch begins on Earth. |
-220,000,000 | EVOLUTION Earth’s climate becomes very dry. Dinosaurs develop. |
-208,000,000 | EVOLUTION Second major spread of sharks. |
-200,000,000 | EVOLUTION Fifth mass extinction event occurs. |
-199,600,000 | EVOLUTION Jurassic period and Early Jurassic epoch begin on Earth. |
-180,000,000 | EVOLUTION Supercontinent Pangea begins to break up on Earth. |
-175,600,000 | EVOLUTION Middle Jurassic epoch begins on Earth. |
-164,000,000 | EVOLUTION Castorocauda lutrasimilis, a swimming mammal lives on Earth. |
-161,200,000 | EVOLUTION Late Jurassic epoch begins on Earth. |
-150,000,000 |
EVOLUTION Giant dinosaurs are common on Earth.
-150,000,000
|
|
EVOLUTION Birds evolve from theropod dinosaurs.
| |
-145,500,000 | EVOLUTION Cretaceous period and Early Cretaceous epoch begin on Earth. |
-135,000,000 | EVOLUTION New dinosaurs appear on Earth. |
-133,000,000 | EVOLUTION Jeholomis prima, a primitive bird lives on Earth. |
-130,000,000 | EVOLUTION Plants develop flowers, causing a major burst of evolution on Earth. |
-128,000,000 | EVOLUTION A small, feathered tyrannosaur lives on Earth. |
-125,000,000 | EVOLUTION Eomaia scansoria lives on Earth. |
-123,000,000 | EVOLUTION More dinosaurs develop feathers. |
-110,000,000 |
EVOLUTION 12 meter crocodile lives on Earth.
-110,000,000
|
|
EVOLUTION Carnivorous dinosaurs lives on Earth.
| |