���Swirls of Sediment��� from ���Fast Flowing Water��� Buried Hundreds of Dinosaurs

Alberta, Canada, is famous for dinosaur fossils, including a densely packed ���mass grave��� of pachyrhinosaurs (members of the ceratopsian kind). This grave site is jam-packed with fossils���over 8,000 have already been uncovered, and they estimate there could still be 300 fossil bones for every 10.76 square feet in an area the size of a football field. What ���massive event��� could���ve buried all these dinosaurs?

Well, the article claims the site shows signs of ������swirls of sediment��� fr...