3 ms·North and South American dinosaurs were very different.by marcosdumay 17d agoNorth and South American dinosaurs were very different.imp0cat 17d agoYes, and the difference being that they did not build a huge wall between them.saghm 17d agoMild correction, but unless you're talking about something in Columbia or maybe Panama, I think what you're referring to is between North American countries.