Giant claw unearthed in Mongolia belongs to a new species of two-fingered dinosaur
An international team of paleontologists and Earth scientists has identified fossilized remains as a two-clawed therizinosaur ...
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This bizarre new dinosaur has something in common with modern sloths
The Duonychus tsogtbaatari fossils preserve the keratin sheath that covered its bony claw. Photograph by Kobayashi, et, al Dinosaur claws were made of bone covered in keratin sheaths, the same ...