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The presence of stromatolites indicates that shallow seas covered much of Earth during intervals in this period.
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Nearly half of the valuable mineral deposits in the world occur in the rocks this period.
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There is vert little plant life during this period.
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Trilobites appear.
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Colonies of tiny invertebrates call graptolites flourished and vertebrates appear. Fish did not have jaws or teeth and their bodies were covered in bony plates.
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Eurypterids (sea scorpions), sea stars and coral becomes more common.
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Vascular plants and animals, such as scorpions begin to evolve on land.
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Age of fishes, fish that can breath out of water and spend time on land form.
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huge plants begin to develop, early amphibians form.
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Ichthyosaurs are living in the ocean, new invertebrates call ammonite develop.
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Swamps and forests cover the land
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Shelled brachiopods appear.
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Coal deposits form
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Giant cockroaches appear.
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Early reptiles resembling large lizards appear.
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Appalachian Mountains are created because of the collision of tectonic plates.
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Environmental change causes mass extinction of sea invertebrates (trilobites and eurypterids) as the seas retreat.
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Flying reptiles called pterosaurs are in the air now.
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Welcome to the world of the Dinosaur! Enter the squirrel sized dinosaur and the first forest dwelling mammals appear.
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Whoa those dinos are getting big and dominate the land - Lizard- hipped and bird-hipped appear - carnivores and herbivores have arrived.
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First flowering plants appear - angiosperm.
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Impact hypothesis - dinosaur mass extinction.
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First primates appear.
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Small rodents evolve.
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Flying squirrels, whales, and bats appear.
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First modern horses appear.
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World wide temperatures drop about 4 degrees celsius (39.2 degrees fahrenheit)
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Himalayas develop due to uplifting caused by the Indian subcontinent and Eurasian continents colliding.
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Many early mammal become extinct clams and snails flourish.
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Antarctic icecaps begin to form.
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Mediterranean Sea dries up and refils several times due to tectonic forcesa dn dropping sea levels.
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Various species migrated between continents across land bridges.
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Species that did not evolve to survive extreme cold moved to warmer climate areas or become extinct (dire wolf and giant ground sloth)
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Homosapien (modern humans) appeared and are hunters.
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Modern human developed agriculture and used tools made of iron and bronze.
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The last glacial period ended and sea levels rose, Great lakes formed.
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There is an argument as to when this epoch began, some scientists think it began with the industrial age in the early 1800s other think it began with the atomic age in the 1950s.
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Some scientist believe that human kind has caused mass extinctions of plant and animal species, polluted the oceans and altered the atmosphere.
