Is it true that older skulls have more sloping facial profiles, as shown by the face angle?

These are the list of skulls, so is the hypothesis: older skulls have more sloping facial profiles, as shown by the face angle, true?





Pan troglodytes (chimp)


Australopithecus afarensis


Australopithecus africanus


Australopithecus bosei


Homo habilis


Homo erectus


Homo heidelbergensis


Homo sapiens neanderthalensis


Homo floresiensis


Homo sapiens (modern human)








please find any websites to prove this. this means a lot to meIs it true that older skulls have more sloping facial profiles, as shown by the face angle?
dunno look in the mirrorIs it true that older skulls have more sloping facial profiles, as shown by the face angle?
this might help