Dinosaur Fossils

[saturneptune]

The authors provided another reason why this soft tissue is from a more ancient source than modern fungus. They found that the ratio of radioactive carbon (C-14) to non-radioactive carbon (C-12) was less than five percent of that found in living organisms. Upon death, organisms begin steadily losing C-14 from their tissues as it radioactively decays into nitrogen. Its complete decay would require only thousands of years, assuming a constant decay rate in an undisturbed system.

The researchers found plenty of C-14 in their mosasaur—enough to calculate "an age of 24,600 BP [years before present]." ... But no amount of any of these could persist after 70 million years. http://www.icr.org/article/6084/


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Neither too small or large, but precisely wrong.