3.13.2011

"Lucy and friends"

Lucy, or Australopithecus afarensis, has more definition on the ridges of phalanges than humans; sort of an intermediate between chimps and humans.
This shows that ridges are present in an intermediate form on Lucy. Compare this to...

Chimps, who have present ridge definition on their phalanges.

This shows the hand of a human, Lucy, and a Chimp in comparison (Human on top)

This is the pelvis of Lucy. There is obvious wrapping of the illia, which would have allowed to get abductors to the side of the body.

In afarensis, there is sexual dimorphism. This picture shows sexual dimorphism in the femoral head.

Human pelvis and Lucy's pelvis side-to-side show that the two are about the same size (width-wise).

Here, the sciotic notch of Ardi (bottom) and Lucy (top) are about the same.

Cranium of Lucy

Note the ascending ramus on Lucy.

Lucy's dental archade is a modified-V shape.

Picture of a chimp. Note the projecting canine. Also, note the diastema and the honing facet on LP3.

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