Ancient ostrich eggshells from Ysterfontein 1 (IMAGE)

Proceedings of the National Academy of Sciences

Ancient ostrich eggshells from Ysterfontein 1

Caption

Ancient ostrich eggshells from Ysterfontein 1, a Middle Stone Age midden in South�Africa. Shown are selected eggshells from the top layer of the midden dated by Uranium- Thorium (U-Th, or 230 Th/U) geochronology, with their outer surfaces facing up. Scale bar is 1 cm.�

Credit

Elizabeth M. Niespolo

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