Decorated ostrich eggshells from MSA South Africa

Mundo Neandertal mentions today this paper by P.J. Texier et al., where it's revealed that people some 60,000 years ago at Howiensoon's Poort, South Africa, used decorated ostrich eggshells (possibly as containers, I guess). The decorations are often repeated in what seems to be a cultural expression.

This adds to other evidence of "advanced" culture in South African MSA, like the use of bow and arrow in the same site and that of Nassarius shell decorations at nearby Blombos.