Geologic Time Scale Comic Flow

Geologic Time Scale Comic Flow

Storyboard Text

  • THE HISTORY OF EARTH
  • The earth is estimated to be at least 4.5 billion years old. It would take a long time to divide Earth's history into days, months, or years...there had to be a better way! Do you know that scientists invented a system for categorizing and explaining Earth's history? And it's known as GEOLOGICAL TIME. A chronological dating system that connects geological strata to time and is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred throughout Earth's history.Are you interested in learning about the Earth's history? Come with me on a time travel adventure!
  • PRECAMBRIAN ERA (4.6 BILLION-570 MILLION YEARS AGO)
  • PRECAMBRIAN ERA
  • The Precambrian is the earliest of the geologic ages, which are marked by different layers of sedimentary rock. Laid down over millions of years, these rock layers contain a permanent record of the Earth's past, including the fossilized remains of plants and animals buried when the sediments were formed
  • PRECAMBRIAN ERA
  • In the last few decades, however, geologists have found that there are some hard-to-discern fossils in some Precambrian rocks, so this period is now also known as the Cryptozoic or "obscure life" Eon (from the words "crypt" = "hidden," and "zoon" = "life").
  • The Precambrian Era. The name means: "before the Cambrian period." This old, but still common term was originally used to refer to the whole period of earth's history before the formation of the oldest rocks with recognizable fossils in them.
  • PALEOZOIC ERA ( 541-252 MILLION YEARS AGO)
  • PALEOZOIC ERA
  • Paleozoic Era started 542 million years ago with the emergence of complex life forms and ended 251 million years ago with the largest mass extinction the world has ever experienced.
  • It is the oldest and longest era of the Phanerozoic Eon. The era is usually broken down even further to six main periods:
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