Fossils discovered in southern Utah are from a new species of birdlike
dinosaur that resembled a 7-foot-tall brightly colored turkey and could run up
to 25 mph, scientists said Tuesday.
Fossils of the meat-eater's hand-like claw and foot were found in the Grand
Staircase-Escalante National Monument near the Arizona border, giving
paleontologists reason to believe some dinosaurs known as raptors roamed from
Canada to northern New Mexico about 75 million years ago.
Much smaller variations of the dinosaur had been found previously in Montana,
South Dakota and the Canadian province of Alberta.
"This is the southernmost occurrence of this group, and it's about two times
the size of the ones up north," said Lindsay Zanno, a doctoral student at the
University of Utah who named the dinosaur Hagryphus giganteus, or giant
four-footed, birdlike god of the Western desert.
The dinosaur had a strong toothless beak, powerful arms and formidable claws
that made it capable of eating animals and plants. Large feathers grew on its
hind end, giving it a resemblance to a turkey, Zanno said.
Scientists are not sure what purpose the feathers served, but it was not for
flying. "It's quite different from modern birds," she said.
Mike Getty, collections manager at the university's Museum of Natural
History, found the fossils in 2001. Scientists needed several years to excavate
the fossils and publish their findings, he said.
The dinosaur was named in a paper published in December by the Journal of
Vertebrate Paleontology. It was the first new dinosaur from the national
monument to receive a name.
"This is the last great, unexplored dinosaur bone yard in the lower 48
states," said Scott Sampson, the museum's chief curator who wrote the journal
article with Zanno.
Three other dinosaurs discovered at the monument are expected to be named
soon, Sampson said, including a meat-eating tyrannosaur, a horned dinosaur and a
duckbilled dinosaur with a 7-foot-long head.