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•The Earth was formed
•Contains the oldest dated rocks on earth
•Fossil Evidence of algae, stromatolited, bacteria, and the first eukaryotes
•The oldest marine animals such as jellyfish and worms -
The first signs of life which started 3,900 million years ago. These were very simple and far from any common plant or animal life today
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Rock-like structure formed in shallow water by the buildup of sedimentary grains by biofilms of microorganisms,
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•The first Vascular Plant life appears
•Oldest Lung Fish fossils are discovered -
The first cells with nuclei appear, and are called Eukaryotes
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•Macroscopic plant life appeared
•sudden appearance of invertebrates
•first vertebrates (primitive fish)
•Oxygen levels increased while the level of carbon dioxide dropped.
•Water levels were nearly 200m larger than today. -
•The apearence of Burgess Shale Animals (Animals [usually fish] with a notochord).
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•The appearence of the first known fish
•Fossil evidence of the first plants on land -
•First fossil evidence of mosses.
•Earliest Insects
•Oldest Lobe-Finned fish and sharks
•First land animals
•Earliest seed plants -
•First reptiles appeared
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•The Permian system starts
•Dimetrodon (Snail-backed reptiles) Appear
•End of Paleozoic
•96% of all life on Earth is killed by the largest mass extinction ever -
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•Oldest crocidiles appear
•First dinosaurs roam the earth
•Earliest mammels -
•Dilophosaurus: An early dinosaur appears
•First bird: Archeopteryx
•Apatosaurus Brachiosaurus, and Stegosaurus appear -
•First flowering plants appear
•Duck-billed dinosaurs
•Protocerstops, Tricerotops, Tyrannosaurus Rex, and Velociraptors appear
•Dinosaurs becom extinct -
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•Early forms of dogs and cats
•Grasses become widespread- 60 MYA.
•Early ancestors of pigs, deer, and horses
•First ancestors of rabbits
•First monkeys
•Earliest human ancestors (hominids) -
•First of 4 ice ages
•Oldest human-ancestor fossil: Homo Habilis
•First modern man: Homosapiens
