A multi-institution study of the use-wear evidence on grinding tools excavated in the Nefud Desert of northern Saudi Arabia suggests a variety of practical uses from processing plants for baking bread and crushing bone to access marrow, offering fresh insights into a little understood chapter of the human story between 8,000 to 6,000 years ago. The PLOS ONE research, which was co-led by Griffith University's Professor Michael Petraglia , was based on use-wear analysis on five grinding tools that he and the team excavated at Jebel Oraf, at the UNESCO site of the Jubbah Oasis, in the Nefud Desert of northern Saudi Arabia.

https://www.miragenews.com/green-arabia-grinding-tools-crucial-in-food-1097469/

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