Full reference: J. H. Ostrom. 1961. A new species of hadrosaurian dinosaur from the Cretaceous of New Mexico. Journal of Paleontology 35(3):575-577
Type specimen: FMNH P27393, a partial skeleton (nearly complete skeleton and fragmentary skull). Its type locality is Coal Creek (FMNH), which is in a Campanian terrestrial horizon in the Fruitland Formation of New Mexico.
Ecology: ground dwelling herbivore
Average measurements (in mm): femur length 1105.0, fibula length 890.0, humerus length 565.0, radius length 585.0, ulna length 665.0
Estimated body mass: 2.57 tons based on femur length