Scientists uncover the truth behind a well-known fossil, Pohlsepia mazonensis, showing the "world's oldest octopus" was not an octopus. For over two decades, an octopus fossil known as Pohlsepia mazonensis held a strange kind of fame. It was dubbed in textbooks and the Guinness Book of Records as the world’s “oldest known octopus.” At around 300 million years old, it seemed to rewrit... [5124 chars]
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