Reviewing Types of Fossils Draw a line from each image to the description that it matches. • These tracks were made by a dinosaur walking in mud. They have been preserved for millions of years. This is a trace fossil.
• This cast fossil formed when an imprint of a shell formed a mold and filled with rock.
• These ancient insects where trapped in tree sap and fossilized. This amber is an example of a whole body fossil.
Lesson 5 How Do People Learn About Extinct Organisms?
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