Paleontologists have discovered a massive amount of dinosaur footprints in Alaska's Denali National Park, according to Live Science.
The dinosaur tracks are 70 million years old, and could be that of a herd of duck-billed dinosaurs that once lived in the forests of Alaska.
"We had mom, dad, big brother, big sister and little babies all running around together," said paleontologist Anthony Fiorillo, the curator of earth sciences at the Perot Museum of Nature and Science, according to Live Science. As I like to tell the park, Denali was a family destination for millions of years, and now we've got the fossil evidence for it."
The discovery supports a previous claim that dinosaurs once lived in and flourished at polar latitudes during the late Cretaceous period.
The team discovered fossilized traces of worms, clams, bugs, and birds along with the dino prints.
Fiorillo said that they found the tracks with preserved skin and "nail" impressions of the hadrosaurs near the park's northeast corner, according to Live Science.
"This is definitely one of the great track sites of the world. We were so happy to find it," said Fiorillo.
Other prints discovered at the park were of therizinosaurs, ceratopsians, and pterosaurs.
Over 80 percent of the footprint tracks were of adults, where as 13 percent were of baby dinosaurs, according to Live Science.
The hadrosaur tracks also suggested that the baby and young adult group of duck-billed dinosaurs lived their whole lives in the Arctic during the late Cretaceous period."If you take a great big herd of plains eaters, they have to move at some level, otherwise they strip out all the vegetation," Fiorillo said. "But there's a growing data set that suggests they didn't do the thousands and thousands of miles of migration that was originally considered."
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