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Birth of earth
About 4.4 billion years ago is when earth started to form. Earth was made of debris from a star that had blown up, -
Precambrian video
Fossils were formed , Fossilized remains of plants and animals buried when the sediments were formed. The final stages of Precambrian time were global ice age. This could have led to widespread extinctions, -
Very large carnivours began to develope. fifth Pliocene epoch wa the fifth epoch of the Cenozoic era.
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Cambrian article
Many of the marine shells started to develop.Along with that became the first vertebrates. ( back bone animals/fish) -
The most primitive vertebrates were fish. Clam like brachiopods and cephalopod mollusks became dominant invertebrates.
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Modern sea stars and corals became more common. Fossils of giant eurypterids have been discovered.
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Fossils of many bony fish were discovered. Land plants, such as giant horsetails, fernes and seed-bearing plants began to develop.
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The Carboniferous Period began 354 million years ago. At the end of the Carboniferous period is when animals started going extinct. Mostly the marine enviroment went extinct because of climate change .
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The climate was very warm. Also it was mostly forest and swamps. Many reptiles and amphibians took up a population.
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Continents had joined. Northwest of mountains was desert and dry.There was a mass extinction.
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Dinosaurs and reptiles lived in the triassic oceans. The first mammals were found on earth.
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http://science.nationalgeographic.com/science/prehistoric-world/jurassic/' >Jurassic article</a>
There were Herbivours. Two kinds of dinosaurs were saurischians and apatosaurs. There was flying reptiles too. -
There was a big mass extinction so no fossils were found or formed.
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It is the first epoch of the Paleogene period in the modern Cenozoic era. The paleocene happened right after the mass extiction.
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The oldest mammal fossil was found in this time. This epoch had the highest temperatures of the entire Cenozoic Era.
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Oligocene Epoch has lasted 11 million years. Animals such as horses, deer, camel, elephants, cats, and dogs started to become more popular.
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Mammals and birds developeds, whether as herbivores, large predatory ,mammals and birds, Sea creatures began to devlope.
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Global cooling and ice ages took place. Mammoths were found during the Pleistocene Epoch.
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Holocene article
Humans started arriving in this time. There was no more ice ages happening,
