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1.There is very little plant life during this period 11.Nearly half of the valuable mineral deposits in the world occur in the rocks pf this period.
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Geological Timescale
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10.The presence of stromatloites indicate that shallow seas covered much of Earth during intervals in this period. 22.Trilobites appear
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23.Shelled brachiopods appear. 30.Colonies of the tiny invertebrates call grapholites flourished and vertibrates appear, Fish did not have jaws or teeth and their bodies were covered with bony plates.
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24.Eurypterids (sea scorpions), sea stars and carol become more common. 33.Vascular land plants and animals, such as scorpions begin to evolve on land.
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31.Huge plants begin to develop, early amphibians. 37.Age of the fishes, fish that can breath out of water and spend time o land form.
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2.Swamps and forests cover the land. 34.Ichthyosaurs are living in the ocean, new invertebrates call ammonite develop.
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4.Giant cockroaches appear. 15.Coal deposits form.
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21.Early reptiles resembling large lizards appear. 38.Enivromental change cause mass extinction of sea invertebrates as the seas retreat.
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16.Welcome to the world of the Dinosaur! Enter the squirrel sized dinosaur & the first forest dwelling mammals appear. 29.Small rodents appear.
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3.Flying reptiles called pterosaurs are in the air now.13.Whoa those dinos are getting big & dominate the land- Lizard hipped and bird-hipped appear- carnivores and herbivores have arrived.
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5.First Flowering plants appear- angiosperm. 35. Impact hypothesis- dinosaur mass extinction.
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6.Himalayas develop due to uplifting caused by the Indian subcontinent and Eurasian continent colliding.12.First primates evolve.
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17.Flying squirrels, whales and bats appear. 26.First modern horses appear.
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18.Various species migrated between continents across land bridges. 27.Many early mammal become extinct, clams and snails flourish.
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8.Appalachian mountains are created because of the collision of tectonic & savanna. 25.World wide temperatures drop 4 degrees celsius.
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20.Species that did not evolve to survive extreme cold moved to warmer climate areas or became extinct. 36.Mediterran sea dries up and refills several times due to tectonic forces dropping sea levels.
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9.Homosapians appeared & are humans. 32.Antarctic icecaps begin to form.
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19.The last glacial period has ended and sea levels rose, Great Lakes formed.
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7.Some scientists believe that human kind has caused mass extinctions of plant and animal species, polluted the ocean and altered the atmosphere.14.There is an argument as to when his epoch began, some scientists think it began with the industrial age in the early 1800's other think it began with the atomic age in the 1950's.
