Revoking the Title: The Oldest Octopus Fossil Isn’t an Octopus After All
Published on: April 9, 2026, 3:42 p.m. | Source: Devdiscourse
New research has reclassified the world's oldest octopus fossil, Pohlsepia mazonensis, as a type of nautilus. Initially identified as an octopus, findings using a synchrotron revealed too many teeth for it to be an octopus. As a result, Guinness World Records will no longer recognize it as the oldest octopus.
