Are thou dost saying that the African minfig was an ancestor of the yellow while the good peach minifigs are the most developed?
While I would love not to post in your thread james+burgandy, I feel it my duty to correct you on this topic.
The minifigures evolution began in 1974 with the invention of the basic minifig torso. The torso did not have movable arms or legs and instead was very basic in nature.
These minfigs, while popular, where highly outclassed by the development of the modern minifigure in 1977.
In 2003, the Basketball theme brought forward the black and old-peach minifigs. These also were soon superseded by the peach minifigs of 2005. Harry Potter and Star Wars were the first themes to be brought to this glorious new level of realism, though town has slowly begun to transition.
Please keep the evolution of the minifig historically accurate...or else!