Dave;

I'm holding i my hand a 4" globe of the earth in late Permian times.

It shows all ocean on the other side.

You see, continents don't subduct. Ocean floors subduct.

Take a look at this site:

http://www.scotese.com/

It gives a lot of information on the earth thruout its' past. That's where I got the globe.

And learn a little more about geology. Then you won't be making such errors.

Roger