Hi Pixie and thank you for your reply.

Indeed, I should give more thought to plate tectonics. Being able to puzzle the landmasses into one huge supercontinent doesn't mean that it all fits like it should. I really should delve a bit deeper into the subject. Thanks for reminding me.

Oh, I started reading your post about ocean currents and climate. Fascinating stuff! I'll definitely need it when I get to that point.

Cheers, Akubra