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It was the birth of the earth. The big bang happend about 13.5 billion years ago.
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There was a big planet that was formed after the big bang. It was the planet earth.
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The fossils are rare in this time. The continental shields appeard. There were underwater fossils. There were alot of sedimantary rocks in this period. http://www.universetoday.com/42884/precambrian-period/
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The Ordovician peroid was named after the celtic tribe Ordovices. It is the second of the six periods of paleozoic. Fish appeard and they were the worlds first vegatarian.
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The shelled marine invertebrates apear. It is the first geological era of the Palazoic era. There was a cambrian explosion in this period.
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The silurian period is extended to end of the ordovician period.There 60% of the marine species wiped out this era. There creepy crawlers in the that began to appear.
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the denovian period experinsed the adaptive radaition. It was named after Devon a place in soutwestern England. The denovian period was named the age of fish
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The mississipian period was amphaibians flourish.Forest and swamps coverd must land. The mississippian period was a period of marine ingression.
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There were gaint cockroaches nd big dragonflies. There were lots of swamps. It began 320 million years ago and it ended 286 million years ago.
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Pandea comes together in this period. There is a mass extixtion in this period. The permian lasted about 299 to 251 years ago. The were gymnosperms that appeard in this period.
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Dinosaurs first appeard in this period. Mamales also appeard in this period. It was at the time the continents were together witch was called pangea.
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There were dinosaurs in this period. There were flying reptiles. There were many different creatures but mostly dinosaurs. There were great plant eating animales. http://www.universetoday.com/77199/jurassic-period/
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There wer dinosaurs and mamales in this period. The mass extiction mark the end of the masozoic era. It noted that it was the last portion of the age of dinosaurs.
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This was the age of mamales began. The first primates appeard in this period. It is marked as the beginning of the cenozoic era.
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There were many different animals in this period. There were flying anamls, horses, and bats. It was the second to five epoches in the tertiary.
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There were alot of new animales in the period. There were horses deer and camels. Primates began to dominate in the oligocene period.
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There wolves and racoons that appeard in this era. It was in era with lots animales and other creatures.
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There were large carnivores that appeardin this period. Pilocene period was named by Sir Charles Lyell. http://www.britannica.com/EBchecked/topic/464853/Pliocene-Epoch
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There were wolly,mammoths,rhinos, and humans that appeard. There global cooling and ice ages that took place in this period.
