John Taylor teaches that "Father Adam" had a resurrected body in the Garden and was a Savior in a previous world.
John Taylor, "The Resurrection," Deseret Weekly, 38, no. 1 (December 29, 1888): 21
I think these two quotations from such reliable authority fully solve the question as to the relationship existing between Father Adam and the Savior of the world, and prove beyond question the power that Adam possessed in regard to taking his body again after laying it down—which power he never could have attained unless he had received first a resurrection from the grave to a condition of immortality. We further say that this power was not forfeited when as a celestial being he voluntarily partook of the forbidden fruit, and thereby rendered his body mortal in order that he might become the father of mortal tabernacles, as he was already the father of immortal spirits—this giving opportunity to the offspring of his own begetting to pass through the ordeals necessary to prepare them for a resurrection from the dead, a celestial glory.
All that Father Adam did upon this earth, from the time that he took up his abode in the Garden of Eden, was done for his posterity's sake and the success of his former mission as the savior of a world, and afterwards, or now, as the father of a world, only added to the glory which he already possessed. If, as the savior of a world, he had the power to lay down his life and take it up again, therefore, as the father of a world which is altogether an advanced condition, we successfully conclude that the grave was powerless to hold him after that mission was completed. all those who have now for the first time taken upon themselves mortality, must wait for their resurrection through Him who along possesses the power to bring it to pass. It is these, and these only, whose resurrection we here wish to consider. But we will not resume the consideration of the question, viz., the times when the resurrection did and will take place.