Kyle Bostick

Well the age the paper gives (early campanian) would be somewhere 80 to 75 MYA. That automatically rules out hypsylophodonts such as Tenontosaurus and hadrosauroids such as Eolambia. Based on the age, which is the same of the Kaparowits and Waheap Formations, which are in southern utah, I am tempted to say Gryposaurus monumentis or the species parasaurolophus found in grand staircase. Since tracks like these would be almost impossible to atrribute to a skeleton, and since they may already have an ichnogenus, I think that those are the most likley options. Again, I am an amateur collector of mainly vertebrate fossils, not a paleontologist, so take what I say with a grain of salt.