New Step by Step Map For what is the fossil record

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Early radioisotopic age constraints about the Campanian formations in the WIB consisted of K–Ar analyses of biotite and feldspar from interbedded bentonites115,116, with assumed uncertainties within the purchase of ± 5%, and these analyses are not talked about further more right here. Biotite ages, especially, are thought of of questionable https://social40.com/story13325426/5-simple-statements-about-what-is-the-fossil-record-explained


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