Scientists in Wyoming are digging up the skeletal remains of three so-called "triceratops" believed to be about 67-million years old.
A rancher led the experts to the spot about 200 miles from Cheyenne.
Scientists said there are three skeletons there, one probably a child and one who likely met a gruesome death from a terrifying predator.
They said the trio could be male and female and their young;
The Triceratops was a three-horned, plant-eating dinosaur considered one of the last of the giant reptiles.
The excavation began in May and is expected to take about a month.