If it's true that the temporal existence of man on Earth will only be a total of 7,000 years (Doctrine and Covenants 77:7), then Adam, "the primal parent of our race" (Source), could not have been created more than 7,000 years ago.  However, how does that make sense when we have discovered human fossil remains as old as 300,000 years? (Source) In other words, how do these 300,000 year old human fossil remains fit on the timeline with Adam being the father of the human race when it is though