PaleoDB taxon number: 68412
Full reference: D. J. Chure. 1994. Koparion douglassi, a new dinosaur from the Morrison Formation (Upper Jurassic) of Dinosaur National Monument; the oldest troodontid (Theropoda: Maniraptora). Brigham Young University Geology Studies 40:11-15
Sister taxa: none
Type specimen: DINO 3353, a tooth. Its type locality is Rainbow Park (DNM 94), which is in a Kimmeridgian/Tithonian wet floodplain horizon in the Morrison Formation of Utah.
Ecology: ground dwelling carnivore-omnivore