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Have we lost an Archaeopteryx but gained a new species of therapod dinosaur?

Worldwide, there are currently just 12 known Archaeopteryx fossils – but researchers believe one might in fact be a new species: Ostromia crassipes A paper published earlier this week in BMC Evolutionary biology suggests that one of only 12 known Archaeopteryx fossil skeletons is not in fact an Archaeopteryx at all but a new species of theropod dinosaur, Ostromia crassipes.
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