The discovery could yield vital clues on the evolution of the human body.
Paleontologists discovered the fossil during a 2008 expedition at the GoGo Formation, originally a large reef in the Kimberley region of Western Australia.
Study co-author professor Per Ahlberg of Sweden's Uppsala University stressed that finding soft tissues preserved in three dimensions in Gogo fishes was truly "exceptional." "We are also very fortunate in that modern scanning techniques allow us to study these fragile soft tissues without destroying them. A couple of decades ago, the project would have been impossible," he said.makes the Gogo arthrodires the most fully understood of all jawed stem vertebrates and explains the evolutionary transition to living jawed vertebrates, which includes mammals and humans.
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