The Geologic Time Scale
Published on Nov 18, 2015
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PRESENTATION OUTLINE
THE GEOLOGIC TIME SCALE
BY ELIZABETH SPAIN
PRECAMBRIAN ERA
4,600 MYA TO 544 MYA
DURING THE PRECAMBRIAN ERA
THE EARTH WAS MOSTLY WATER WITH SOME SMALL VOLCANIC ISLANDS
BACTERIA WERE SOME OF THE VERY FIRST LIVING THINGS ON EARTH
DUE TO EARTH BEING MOST WATER AND HAVING A HARSH CLIMATE
ANABAENA WERE SOME OF THE FIRST PLANT LIFE ON EARTH
ANABAENAS LIVED IN SHALLOW WATER OR DAMP GROUMD AND ARE STILL AROUND PRESENT DAY
DURING THE PRECAMBRIAN ERA METEOROID SHOWERS WERE COMMON
AS A RESULT NOT MY ANIMALS AND PLANTS WERE LIVING DURING THIS ERA
PALEOZOIC ERA
540 MYA TO 248 MYA
DURING THE PALEOZOIC ERA THERE WERE MORE PLANT
LIFE TO HELP INCREASE THE OXYGEN LEVELS
THE PALEOZOIC ERA WAS
THE AGE OF MARINE LIFE
MOST OF THE SEA PLANTS DURING THE PALEOZOIC ERA WERE
CORAL OR SEA WEED
DURING THE PALEOZOIC ERA
ALL THE CONTINENTS FORMED A SUPER CONTINENT CALLED PANGEA
MESOZOIC ERA
248 MYA TO 66 MYA
DURING THE MESOZOIC ERA
PANGEA STARTED TO BREAK UP
THE FIRST FLOWERING PLANTS APPEARED
TO SUPPORT THE NEW HERBIVORES
THE MARINE LIFE STARTED TO EVOLVE INTO
LAND ANIMALS KNOWN AS DINOSAURS
DURING THE MESIZOIC ERA
THE FIRST BIRDS STARTED SHOWING UP
CENOZOIC ERA
66 MYA TO PRESENT DAY
MASS EXTINCTION
WHIPPED OUT ALL ANIMALS FORM THE MESOZOIC ERA
DURING THE CENOZOIC ERA
THE FIRST HUMANS APPEARED
THE CENOZOIC ERA
WAS KNOWN AS THE AGE OF ANIMALS
DURING THE CENOZOIC ERA
MOST OF PLANTS LOOKED SIMILAR TO TODAYS PLANTS
