Use the diagrams below and the information from above to answer
the following questions.
The fossil
at the left represents a trilobite, which lived about 500-600 million years
ago.
8. If the fossils in layers D and J are about 200 million years
old and those in layers F and L are between 500 and 600 million years old, about
how old must the fossils in layers E and K be?
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Slichter