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Age of Fishes

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Age of Fishes [′āj əv ′fish·əz]
(geology)
An informal designation of the Silurian and Devonian periods of geologic time.
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When done correctly, using otoliths (ear bones that are produced in layers over time, like the rings in a tree's trunk) to determine the age of fishes is believed to be a generally reliable method, although age determinations based on otoliths do not always agree with aging studies based on other methods, such as counts of scale annuli.
Several scientists say Atlantic red snapper closure 'unwarranted' by Waldner Raymond E.; Chesnes, Thomas C. / Florida Sportsman
 
 
 
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