The dinosaur, named Duonychus tsogtbaatari, measured about 10 feet (3 meters) long, weighed approximately 575 pounds (260 kg) and lived roughly 90 to 95 million years ago during the Cretaceous Peri…{ai:summary}<p>It seems there is no content provided for summarization. Please provide the text or article you would like summarized.</p>

Fossils of weird Mongolian dinosaur that wielded ‘big, sharp and nasty’ claws unearthed during construction project

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