[dmill1220]

Hi Dragon!
Read your link completely that you gave me,it says
sedna and the others do not orbit in the same plane as ours.
But its exactly what I was Proposing since the orbital periods and inclination are not within the Sun's Acretion disk.
ITs a very interesting possibility a Chaotic scenario where not only our own several worlds were colliding and sending some into the Sun or out of the Solar Sytem but also gravitational tugs from Galactic Oscillations by Passing stars or a Unseen Nemesis Star in our Orbit around our Galaxy.

there could have been many more planets before gravity and collisions wreaked havoc on all the newly formed Planets or Smaller objects.