The bones still form into animals that once existed (unless they were planted by God or something...), and the animals have been given names (as Dinosaurs). I don't really think there's much room to dispute the existance of dinosaurs as never having happened, is there? I won't force you to believe that they existed 65,000,000 years ago, but you ought to admit they existed in some form.
And, if they existed in some form, which one do you think is the best?