A famous 300-million-year-old fossil previously believed to be the world’s oldest octopus actually may be a different animal entirely, new scans have revealed.
The Pohlsepia mazonensis fossil was found in Illinois in the US in 2000, and first identified as an octopus 25 years ago. It has since been widely lauded as the oldest of its kind ever found - even featuring in the Guinness Book of Records.