The Wall Between the USA & Morocco

If Donald Trump had been President of the United States in the Paleozoic era then he might have built a wall between the USA & Morocco.

The super-continent of Pangea existed during the late Paleozoic and early Mesozoic eras, before it began to break apart about 175 million years ago. Of course there weren't any country borders on Pangea. By some estimates, however, the land mass that is now North America was attached to North West Africa. Therefore what is now the United States would perhaps have shared a border with what is now Morocco.

Pangaea Politica by Massimo Pietrobon is a rather fanciful map which overlays modern country borders on a map of Pangea. The map is at best a guesstimate of where modern day counties might have been on Pangea. There are some obvious errors, for example the map includes the country of Iceland, a volcanic island which didn't exist when Pangea was around. However it is still quite good fun to imagine which modern countries might share borders today if Pangea had never broken apart.