
Because I know some people will be curious and want to research these skulls:
•(A) Pan troglodytes, chimpanzee, modern
•(B) Australopithecus africanus, 2.6 million years
•(C) Australopithecus africanus, 2.5 million years
•(D) Homo habilis, 1.9 million years
•(E) Homo habilis, 1.8 million years
•(F) Homo rudolfensis, 1.8 million years
•(G) Homo erectus, 1.75 million years
•(H) Homo ergaster (early H. erectus), 1.75 million years
•(I) Homo heidelbergensis, "Rhodesia man," 300,000 - 125,000 years
•(J) Homo sapiens neanderthalensis, 70,000 years
•(K) Homo sapiens neanderthalensis, La Chappelle-aux-Saints, 60,000 years
•(L) Homo sapiens neanderthalensis, Le Moustier, 45,000 years
•(M) Homo sapiens sapiens, Cro-Magnon I, 30,000 years
•(N) Homo sapiens sapiens, modern