Homo Sapiens Idaltu are a subspecies of Sapiens. Khoisans are Homo Sapiens Sapiens.
But then, from the graph:
https://en.wikipedia.org/wiki/Human_evolution#/media/File:Homo_sapiens_lineage.svg
It seems as if Khoisan, and even Central African Foragers, diverged from the rest of Homo Sapiens Sapiens before the existence of Idaltu. Idaltu (at least, from what I can infer from the graph) evolved into the rest of the Homo Sapiens Sapiens.
How can that be?
But then, from the graph:
https://en.wikipedia.org/wiki/Human_evolution#/media/File:Homo_sapiens_lineage.svg
It seems as if Khoisan, and even Central African Foragers, diverged from the rest of Homo Sapiens Sapiens before the existence of Idaltu. Idaltu (at least, from what I can infer from the graph) evolved into the rest of the Homo Sapiens Sapiens.
How can that be?