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Fossil shark teeth are abundant and can date the past in a unique way

  • Written by Stephanie Killingsworth, Ph.D. Student in Geological Sciences, University of Florida
Fossil shark teeth are abundant and can date the past in a unique wayA paleontologist holds a megalodon fossil tooth. Kristen Grace/FLMNH, CC BY-SA

The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ancient times, according to our newly published work.

As paleontologists with the Florida Museum of Natural History, we’re interested in...

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