In a Sequence of Rock Layers We Find Trilobite Fossils

question 125

Multiple Choice

In a sequence of rock layers we find trilobite fossils at the bottom of rock layer 1 and dinosaur fossils directly above the fossil trilobites in layer 2.There are inclusions of trilobites in layer 2.We conclude that

• A)dinosaurs were extinct long before trilobites came into existence.
• B)dinosaurs are from the Cambrian Period.
• C)by inclusion and faunal succession,layer 1 is older than layer 2.
• D)there is no time gap between the rocks.

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