Gondwana was the first and last supercontinent .

 Few questions to plate tectonics on the idea of multiple supercontinents prior to Gondvana

There are few questions to plate tectonics

1) where are these earlier plate boundaries,prior to Gondavana super continent ,?

2) Are they merged ?

3) What forces broke and moved these plates?

Are those heat currents?

If heat currents were present at that place , it would not allow plates to solidify there,in first place

What I believe is...

There was only ,first and last super continent ie Gondvana.

 It broke in to pieces due to violent quakes and volcanic eruptions.

 After breaking up the broken part moved apart as per coriolis theory

 The plates above equator moved north, north east and to the south of equator moved south ,south west

 All plates will ultimately moving to poles,north or soth

Therefore there is more land mass at poles and less land mass at equator 

 Once the plate crossed the equator it will never come back to equator 

There was no previous supercontinent and there will not be any henceforth 

All land mass will move to poles

The closer to equator the plate move faster

At poles it becomes standstill.

 what we call collision of two plates is infact ,one plate (nearer to pole) move slowly and the plate (nearer to equator) move faster .The collision is infact due to differece in speed.

  The smaller and nearer to equator plates will move faster. 

  The plate whose 50%+ land mass is above Equator will move towards North,North East and the plate whose 50%+ land mass is below Equator will move southwards 

  The Gondwana didn't move when it was one supercontinent because the land mass of it was equally distributed above and below Equator 

  The moment it broke due to violent quakes and eruptions,the broken pieces started moving northward and U.S. Geological Survey (USGS)