Fossils are skeletal remains of deceased animals or plant, which has mineralized in permanent fixtures. The latter may take the form of impressions on durable surfaces, such as rocks. Paleontology is the study of fossils and other ancient tracks of life that existed on the earth during past geologic ages. Many fossils are found by chance, although experience gives a better idea of the probability of finding better find. For example, the tropical ocean proves to hold more invertebrate fossils; like barnacles, mollusks, Nautilus - specious.
Moreover, the shape and location of continents and oceans have been changer during intervening periods, as a result of plate tectonics. Thus, what existed and was mineralized in rock millions of years has shifted elsewhere; to other parts of the continent, where the fossils can now be found.
In sum, modern technology takes the guess work out of fossil location; in contrast to, probability of area remains.
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