For 25 years, a hand-sized sea creature embedded in Illinois rock held the title of the world's oldest octopus. Now, thanks ...

More than two decades after scientists identified a fossil as the world’s oldest octopus — officials now say it wasn’t one at ...

"It's a huge gap. And so that big gap got researchers sort of questioning, ‘Is this thing actually an octopus?'" ...

For nearly 25 years, a hand-sized fossil pulled from the rocks of Illinois held a remarkable title: the oldest known octopus ...

Korn, CC0, via Wikimedia Commons For years, a 300-million-year-old fossil in Chicago was celebrated as the world’s oldest octopus. Now, after a fresh round of high-resolution scans, that celebrity ...

LONDON (AP) — A 300-million-year-old tentacled sea creature has lost its crown as the world’s oldest octopus, after scientists found evidence that it’s not an octopus at all.

Pohlsepia mazonensis, a visually underwhelming fossil from Illinois, fundamentally broke our understanding of cephalopod evolution. Described in 2000 and hailed as the oldest known octopus in the ...

A team cracked the case by examining the fossil using a synchrotron, which produces beams of light by accelerating electrons ...

Missouri is home to thousands of caves, but this one in the Ozarks stands out among the rest. It dates back to the Ice Age ...

LONDON (AP) — A 300-million-year-old tentacled sea creature has lost its crown as the world’s oldest octopus, after scientists found evidence that it’s not an octopus at all. Newly published research ...