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Geologic Principles. Fossils. Geologic Time. Precambrian And Paleozoic. Mesozoic And Cenozoic. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500. 500.

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  1. Geologic Principles Fossils Geologic Time Precambrian And Paleozoic Mesozoic And Cenozoic 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

  2. Name the principle which states that older rocks are below younger layers.

  3. Superposition

  4. Name the principle which states that an intrusion or fault is younger that the rock layers it cuts across.

  5. Cross-cutting Relationships

  6. Name the principle that states that the processes happening today are the same processes that happened in the past.

  7. Uniformitarianism

  8. Name the principle that states that fragments are older that the rock they are found in.

  9. Included Fragments (Inclusions)

  10. Name the principle that states that sedimentary rock layers are deposited horizontally.

  11. Original Horizontality

  12. Almost all fossils are discovered in what type of rock?

  13. Sedimentary

  14. What is amber?

  15. Hardened tree sap

  16. Which forms first – a cast or a mold?

  17. Cast

  18. A footprint or worm tube is classified as what type of fossil?

  19. Trace

  20. What are the two main characteristics needed for a fossil to be a good INDEX FOSSIL.

  21. lived over a relatively short time 2. is found over a wide geographic area

  22. Geologic Eras are may be broken into smaller units of time called _____.

  23. Periods

  24. Geologic Periods may be broken into smaller units of time called _____.

  25. Epochs

  26. Geologic Eons may be broken into smaller un its of time called _____.

  27. Eras

  28. Which was longer, the Paleozoic Era or Precambrian Time

  29. Precambrian

  30. List the Periods of the Mesozoic Era in order, starting with the oldest.

  31. Triassic, Jurassic, Cretaceous

  32. The division of geologic time that makes up 88% of Earth’s history is the _____.

  33. Precambrian

  34. During this time the supercontinent Pangaea formed.

  35. Paleozoic

  36. Coal deposits found in Pennsylvania, Ohio, and West Virginia represent fossilized remains of _____.

  37. swamps and forests from the Carboniferous period

  38. The mass extinction at the end of the Permian period led to what?

  39. Abundant new life forms in the Mesozoic

  40. The most common Precambrian fossils are _____.

  41. Stromatolites

  42. According to the impact hypothesis, dinosaurs became extinct when what happened?

  43. A giant meteorite crashed into the Earth.

  44. The Cenozoic Era is known as the Age of ______.

  45. Mammals

  46. The Pleistocene Epoch was characterized by what?

  47. The repeated advance and retreat of ice sheets.

  48. The Mesozoic Era is known as the Age of _____.

  49. reptiles

  50. Dinosaurs first appeared in which Period?

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