Avisaurus darwini, Avisaurus sp., and Magnusavis ekalakaensis, all of which are represented by a tarsometatarsus. They are all shown to scale with one another.
The three fossil specimens (from left to right), Avisaurus darwini ... “Based on clues in their footbones, we think these birds would have been able to catch and carry prey, similar to what ...
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