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Ancient Fossil Reclassified, Shifting Octopus Timeline by Millions

4/8/2026

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Summary

Story summary

Pohlsepia, a fossil specimen previously regarded as the oldest octopus, is reclassified as a nautilus.
The finding, published in Proceedings of the Royal Society B, dates Pohlsepia to 310 million years ago and notes a radula with at least 11 teeth per row.
Paleontologist Thomas Clements says the reclassification could shift the octopus timeline, making them younger.
The study notes potential for future technology to clarify the fossil's identity.

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Story summary

Pohlsepia, a fossil specimen previously regarded as the oldest octopus, is reclassified as a nautilus.
The finding, published in Proceedings of the Royal Society B, dates Pohlsepia to 310 million years ago and notes a radula with at least 11 teeth per row.
Paleontologist Thomas Clements says the reclassification could shift the octopus timeline, making them younger.
The study notes potential for future technology to clarify the fossil's identity.