Evidence indicates tyrannosaurs may not have been a solitary species after all New scientific paper published after seven years of research and excavation in Grand Staircase-Escalante National Monument KANAB, Utah — The Bureau of Land Management (BLM) Utah today announced publication of peer-reviewed research based on a fossil site inside Grand Staircase-Escalante National Monument. The paper provides new evidence that fearsome tyrannosaur dinosaurs may not have been solitary predators as popularly envisioned, but social carnivores, similar to wolves. The findings about Grand Staircase-Escalante National Monument’s very own “dinocidal” tyrannosaur (Teratophoneus-pronounced Ter-at-oe-foh-nee-us) were released through publication in the open-access scientific journal PeerJ on April 19.