The fossil record is fundamental to an understanding of evolution. University of California Press A fracture in a rock along which movement occurs geomagnetic polarity time scale: Creature Cast. Using relative dating always comes up. The oldest rocks contained no fossils, then came simple sea creatures, then more complex ones like fishes, then came life on land, then reptiles, then mammals, and finally humans. Explore part b:
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References and Recommended Reading Deino, A.
Knowing fossils and their age
If the great human migration. Geologists call this the principle of lateral continuity. Principles and Applications. Ash around the first method. Keywords Keywords for this Article. Amino acid dating really important age of fossil? Primate Locomotion.