Exercise 4.2: Interpreting Fossils

Watch this video to learn about different methods paleontologists use for dating fossils.

1. What is stratigraphy?

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2. Using your knowledge of plate tectonics and mountain building, what do you think the main problem is with dating fossils using stratigraphy?

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3. What is “radio carbon” or “radio isotope” dating? What two elements are discussed in the video?

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4. What is an “index fossil”? How are they useful to paleontologists?

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