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Jacobs said he thinks of C. marri as the dinosaur equivalent of gazelles, because they were fast-moving and wary of attacks.

Convolosaurus marri is an early relative of hadrosaurs, the common duckbill dinosaurs that emerged about 20 million years later.

The dinosaurs, which Andrzejewski and her colleagues named Convolosaurus marri, make up the largest trove of dinosaur fossils ever discovered in Texas.