Fossil History - 2.5 Billion Years

  by Rodney
194 pts
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14. Early Proterozoic 2.5 billion years to 600 mya - Oxygen build-up on Earth. First multi-cellular life.
2.bp.blogspot.com
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13. Vendian 600 to 540 mya - Sponges, multi-celled animals appear. Supercontinent Rodinia.
www.geology.wisc.edu
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12. Cambrian 540 to 500 mya - Explosion of life forms. First shellfish, primitive fish, trilobites, corals, mollusks.
www-tc.pbs.org
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11. Ordovician 505 to 438 mya - First land plants, corals, Nautiloids. Ends in mass extinction.
www.ucmp.berkeley.edu
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10. Silurian 438 to 408 mya - First insects, vascular plants on land.
clccharter.org
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9. Devonian 408 to 360 mya - First amphibians, sharks, bony fish, ammonoids, and spiders. Many fish.
25.media.tumblr.com
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8. Carboniferous 360 to 280 mya - Widespread coal swamps. First reptiles, winged insects.
ecache.ilbe.com
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7. Permian 280 to 245 mya - Sail-back reptiles. Amphibians abundant. Pangaea forms. Ends with mass extinction.
museumvictoria.com.au
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6. Triassic 245 to 208 mya - First mammals, dinosaurs, frogs, turtles, crocodyloformes.
images.nationalgeographic.com
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5. Jurassic 208 to 146 mya - Abundant dinosaurs, first birds.
images.nationalgeographic.com
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4. Cretaceous 146 to 65 mya - First flowering plants, snakes, crocodilians. K-T mass extinction at end kills dinosaurs
cache.desktopnexus.com
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3. Paleogene 65-24 mya - First deer, cats, pigs, tapirs, and rhinos, elephants, horses, owls, shrews, hedgehogs...
eweb.furman.edu
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2.Neogene 24-1.8 mya - Australopithecus appears. First sheep, cattle, modern whales, bears, mice, rats, apes, monkeys ..
www.humboldt.edu
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1. Quarternary 1.8 mya-today - First humans, mammoths, mastodons, saber-toothed cats.
heartcurrents.com
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My Source - Enchanted Learning - Geologic Eons, Eras, and Periods
www.enchantedlearning.com
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paddlegalactus Everything just looks so tasty!
1 pts 3 years ago
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