So I originally listed this dinosaur as 'Drinker' but this, along with dinosaurs like Othnielia (all from the Late Jurassic), have since turned out to be the same kind of dinosaur; back in the 1800s, Edward Drinker Cope and Othniel Charles Marsh engaged each other in the 'Bone Wars', in which they set out to beat each other at how many dinosaur fossils they could dig up and name, but they did it with little to no scientific discipline. Thus, a lot of small herbivorous dinosaurs turned out to be one species rather than several.