The ratios of strontium isotopes in fossil shark teeth can be used to better understand ... including major sea-level fluctuations and the Great American Biotic Interchange – the migration ...

Our study was one of the first to date Florida coastal deposits using fossil shark teeth and a technique that ... including major sea-level fluctuations and the Great American Biotic Interchange ...

The ratios of strontium isotopes in fossil shark teeth can be used to better understand ... including major sea-level fluctuations and the Great American Biotic Interchange—the migration of ...

Researchers Astounded to Find a 9-Million-Year-Old Fish Fossil in Exceptional Condition; Is Ancestor to Great White Shark ...

The fossilized remains belong to Cosmopolitodus ... of up to 7 meters (23 feet), comparable to the modern great white shark. The teeth reached a length of 8.9 centimeters (3.5 inches) and were ...

(MENAFN- The Conversation) The ratios of strontium isotopes in fossil shark teeth can be used to better ... Our work provides a more precise date. During the Great American Biotic Interchange ...

A paleontologist holds a megalodon fossil tooth. Credit: Kristen Grace/FLMNH, CC BY-SA. The ratios of strontium isotopes in fossil shark teeth can ... and the Great American Biotic Interchange ...

Paleontologists in Peru on Monday unveiled the 9-million-year-old fossil of a relative of the great white shark that once ...

The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved ... Our revised age calibrations coincide with global events, including major ...