July 27, 2025

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Scientists try to solve mystery of mass dinosaur grave beneath lush Canadian forest

Scientists try to solve mystery of mass dinosaur grave beneath lush Canadian forest

Summary

A mass grave of thousands of Pachyrhinosaurus dinosaurs has been found in Pipestone Creek, Alberta, Canada, also known as the "River of Death." Scientists are studying the site to understand why so many dinosaurs died there at once, uncovering thousands of fossilized bones in the process.

Key Facts

  • The mass grave is located under a forested area in Alberta, Canada.
  • Thousands of fossils from a dinosaur called Pachyrhinosaurus have been found.
  • Pachyrhinosaurus were large plant-eating dinosaurs, related to the Triceratops, with bumps on their noses called bosses.
  • The site has an extremely dense concentration of bones, with up to 300 bones per square meter.
  • The excavation currently covers an area the size of a tennis court, but the fossil bed extends for a kilometer.
  • Researchers believe the dinosaurs died together during a migration.
  • The site could be one of the largest dinosaur bone beds in North America.
  • The warmer climate of the past might have supported rich vegetation for these herds.

Source Information