What if the excavations of dinosaurs weren't of the said reptilian prehistoric creatures. If the carcases studied and thought by the biology experts were infact of wild boars of various sizes and shapes? And they were very quick, had a tail and laid even eggs? As there is no closest animal which could determine that dinosaurs were of such species. So if biologist had mistaken in drawing the caracas excavations species as dinosaurs infact were wild boars....?