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Bizarre Limbs Helped Ancient Reptile Dig


Claire.

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Huge Claw, Bizarre Limbs Helped Ancient Reptile Dig

About 200 million years ago, a reptile resembling a chameleon wielded a digit on each of its front legs with a massive claw, and used that claw as a digging tool in a manner similar to that of modern anteaters.

However, the oversize claws weren't even the weirdest part of this animal's forelimbs, according to a new study describing fossils of the unusual appendages. The front limbs of most tetrapods — four-limbed animals with backbones — share certain similarities in bone arrangement and shape. But this unusual reptile's forelimb structure diverged dramatically, suggesting that early tetrapod limbs may have been more diverse than previously suspected.

Read more: Live Science

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