Discovery Called Key Evidence Of Vertebrates’ Ocean Origins

Researchers found several fossils between four and nine feet long. The creature was a fish — with scales, fins and gills — but it moved its head independently of its body, could drag itself along on land as today’s seals do, and may have walked, although the research team did not find fossil hindquarters to test that hypothesis.

The discovery provides the best evidence yet that fish emerged from the oceans and rivers of the early Earth between 380 million and 360 million years ago and evolved into terrestrial vertebrates beginning with amphibians and reptiles, and ending up with mammals and, ultimately, humans.

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