Teeth are the part of the body that gets preserved most frequently. All things being equal, you’re more likely to find teeth than anything else.

I’m going back to look for the rest.

So little of the anatomy is preserved that these fossils do not teach us much new about chimpanzee anatomical evolution. There is no logical necessity why chimps had to remain in the forest.

I must say that chimp fossils were about the last thing I would have expected to find there.