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3 Cards in this Set
- Front
- Back
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What is a index fossil? |
An index fossil is a fossil species that are used to distinguish one layer from another and occur for a limit period of time.they have to be common,easily identified and found across a large area. |
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Why are primate fossils not got index fossils? |
Primate fossils are rare so are not good index fossils |
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Give an example of an index fossils and explain why is an index fossil? |
An example of an index fossil is pigs or rodents which is typically used cos they are common,widely distributed and evolve relatively rapidly. |
