New Fossils of Tiktaalik roseae Amaze Scientists

January 14, 2014 4:13 PM

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Paleontologists led by Prof Neil Shubin from the University of Chicago have discovered unique fossils of Tiktaalik roseae – the most compelling example yet of a creature that was at the cusp of the fish-tetrapod transition.

The fossilized pelves and a pelvic fin of Tiktaalik roseae reveal that the evolution of hind legs actually began as enhanced hind fins, according to the scientists. This challenges existing theory that large, mobile hind appendages were developed only after vertebrates transitioned to land.

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