Correlation and relative dating through the use of index fossils is limited because
A)index fossils are extremely rare.
B)many sedimentary layers do not contain index fossils at all.
C)index fossils appeared for too short a time in the geologic record to be very helpful.
D)index fossils are rarely found in other than sedimentary rocks.

Question

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The Answer of Correlation and relative dating through the use of index fossils is limited because
A)index fossils are extremely rare.
B)many sedimentary layers do not contain index fossils at all.
C)index fossils appeared for too short a time in the geologic record to be very helpful.
D)index fossils are rarely found in other than sedimentary rocks.

Correlation and Relative Dating Through the Use of Index Fossils