Einiosaurus

Banding, Trample
Low-diversity and single-species bonebeds are thought to represent herds that may have died in catastrophic events, such as during a or flood. This is evidence that Einiosaurus, as well as other centrosaurine ceratopsians such as Pachyrhinosaurus and Centrosaurus, were herding animals similar in behavior to modern-day bison or wildebeest.