14.1 The record of life. CHAPTER 14 HISTORY OF THE EARTH. 14.1 The Record of Life… VOCABULARY. Isotope = atoms of the same element that have different numbers of neutrons. Fossil = evidence of an organism that lived long ago. Plate tectonics = the theory that explains how the continents move.
Examples of fossil evidence:
For accurate, consistent values –
End of the Paleozoic Era:
Jurassic Period – middle of the Mesozoic Era
Theory of Continental Drift