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Mystery Event Decimated 90 Per Cent of Shark Diversity 19 Million Years Ago, New Study Finds – Gadgets 360
An ocean evet some 19 million years ago nearly wiped out the entire shark population, a new study has found. What remains today is just a sliver of the diversity…
A new study has found that a single mysterious event about 19 million years ago wiped nearly the entire population of sharks. Scientists behind the new research say that studying the shark teeth buried in deep-sea sediment, revealed that the current diversity among sharks is only a tiny remnant of a much larger variety that existed back then. They say this unidentified major ocean extinction caused the reduction in the shark diversity by over 70 percent and nearly a complete loss in total abundance….
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