Environment
This is the oldest fossil of a plesiosaur from the dinosaur era
A nearly complete skeleton of an early long-necked plesiosaur has been found in a clay pit in Germany, and reveals they survived a mass extinction
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A nearly complete skeleton of an early long-necked plesiosaur has been found in a clay pit in Germany, and reveals they survived a mass extinction
High levels of oceanic oxygen could聽have allowed advanced, animal-like life to develop for the first time 鈥� only to be wiped out again as oxygen vanished