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A trilobite fossils has been used to tell us how life on earth has changed. Trilobite fossils are examples of?
A:mold and cast fossil
B:index fossil
C:trace fossil
D:petrified fossils

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quasarJose

Answer:

B:index fossil

Explanation:

The trilobite fossils are examples of index fossils.

Index fossils are most desirable for stratigraphic construction and to predict ancient life forms on earth.

  • Index fossils are fossils with the following characteristics;
  1. They have short stratigraphic span
  2. They have a wide geographic distribution
  3. Shows rapid evolutionary trends or changes.

Trilobite is one of such fossils that have the above listed properties.

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