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Tooth of a horned dinosaur from Mississippi. | George Phillips, MDWFP Museum of Natural Science
Animals

Fossil Find Suggests Dinosaurs Crossed North America Before Extinction

A single dinosaur tooth is helping paleontologists better understand what North America looked like right before non-avian dinosaurs went extinct.

Published On 05/23/2017
10:02 AM EDT
Tooth of a ceratopsid, or horned dinosaur, from Mississippi, held next to a complete lower jaw of Triceratops from Montana. | Jeremy Copley, MDWFP Museum of Natural Science
The discovery site of the tooth from a ceratopsid horned dinosaur in Mississippi. | Andrew Smith, courtesy of George Phillips, MDWFP Museum of Natural Science