Newly discovered octopus ancestor had 10 arms

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Newly discovered octopus ancestor had 10 arms
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Paleontologists have discovered the fossilized remains of an unusual 10-armed, squidlike creature and named it in honor of U.S. President Joe Biden.

About 330 million years ago in what’s now Montana, a squidlike creature died in a tropical bay and its soft body was preserved in limestone. Now, paleontologists at the American Museum of Natural History and Yale University have studied the fossilized remains and named the unusual 10-armed creature in honor of U.S. President Joe Biden.

The creature was about 12 centimeters long and had a torpedo-shaped body, with a pair of fins at one end that likely helped stabilize it as it swam. It also had. Two of the arms seem to be longer than the rest, similar to the two long tentacles that accompany the eight arms of modern-day squid. vampire squids

The fossil dates to about 330 million years ago, which corroborates genetic studies indicating vampyropods diverged from their squid ancestors around that time. Although the creature appears to have had 10 robust and functional extremities, its modern-day descendants have done away with the extra pair: Vampire squids only have two vestigial filaments, and octopuses have lost the arm pair entirely..

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