Often the biggest dinosaurs are known from tracks, like Breviparopus, which could have been upto 50m. long. Or the 15m. Iguanodon. Which are the very biggest dinosaur , based on tracks, of each group? Greg Paul says there are an upto 20 ton. ornithopod, based on tracks. Can anyone give me a list of the biggest dinosaurs, in ichnogenera? -DinosØMP