Herbivores who foraged on all fours and ran on hind legs, there are two main families of the duck-billed dinosaurs known as hadrosaurids: hadrosaurines and lambeosaurines. In game terms there is no difference. Some could be interpreted as Semi-amphibious swamp or wetland dwellers, in which case they should have a swimming move, but many, perhaps all, are fully terrestrial. Trachodon and Anatosaurs are now-superseded names for kinds of hadrosaurid.