Can you name the stages of human evolution in this circle of skulls?

Science tells us that humans evolved from more ape-like primates, but it's not every day that so much evidence winds up in one place. The skull replicas on this table belong to a whole slew of distant human cousins and ancestors. Taken together, the contents of this table represent 4.5 million years of human evolution. Can you name all of the species?

Can you name the stages of human evolution in this circle of skulls?

Yeah, I can't do it either. Here's a cheat sheet (click to expand).

The skulls are drawn from the collection of the Faculty of Archaeology at the University of Leiden in the Netherlands, and assembled and labeled by archaeology student Roosje de Vries.

Images by Roosje de Vries via Reddit.