The bones from the chart go back as far as 4 (atomic) million years.
Let's for a moment say that you are right, and all bones are somehow variations upon the very Homo sapiens that god first created from dirt/a rib + magic.
Shouldn't we find human bones predating those we have found now? If the entire world is about 6000 years old, shouldn't we be finding human bones from all ages? Shouldn't dinosaur flood-victims be buried next to the 'wicked' humans that were destroyed by god?
Thus far ALL human bones seem to fit right into the theory that we had mammalian ancestors.
Perhaps you could back up this claim with some Homo sapiens bones that were dated as being 65+ (atomic) years old?