How paleontologists are using fossilized shark teeth to date the past
Sharks have ruled the Earth’s oceans for 400 million years and recent research on fossilized shark teeth has led to the ...
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Fossil shark teeth are abundant and can date the past in a unique way
Sharks ruled the earth's oceans for 400 million years ... The Neogene, from 2.6 to 23.5 million years ago, was a time of immense change in biodiversity because of changing climates.