Via MSNBC:
These storms could also help explain why fossils are so abundant in the badlands of western Canada overall, "and why they are often found preserved so exquisitely," Eberth said.
Coastal floodplains such as those seen in modern Bangladesh can cover vast areas, with flooding killing hundreds of thousands of livestock, not to mention the human tragedies that occur.
"Because of their size and the scale of the flooding, dinosaurs could not escape the coastal floodwaters and would have been killed in large numbers," Eberth explained