Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

intaglio

(8,170 posts)
Sat Jul 26, 2014, 02:14 PM Jul 2014

What would be scarier than being hunted by a tyranosaurus

Being hunted by a pack of tyranosaurus

Tyrannosaur 'gangs' terrorized ancient landscape (?)
/snip
The team eventually discovered a patch 197 feet (60 meters) long by 13 feet (4 m) wide filled with footprints from multiple dinosaurs, including tyrannosaurs, other small theropods, and duck-billed dinosaurs called hadrosaurs. These dinosaurs were apparently walking in the silty sediments from an overflowing river and formed the track marks about 70 million years ago. A thick layer of volcanic ash then preserved the marks, McCrea said.

In total, the team found seven tracks that were made by three tyrannosaurs. Though the researchers couldn't identify the specific species, it's likely given the period and location where they were found that Albertosaurus, Gorgosaurus or Daspletosaurus left the tracks, McCrea said.

Though the other dinosaur tracks there are all pointing in random directions, the tyrannosaur footprints are parallel with each other. The tyrannosaurs also left prints of about the same depth in the wet sediments, suggesting they crossed through the area at the same time. (As the mud dries, the depth of footprints becomes shallower.)

query added to title by myself in the name of accuracy
Latest Discussions»The DU Lounge»What would be scarier tha...