An investigation into differential use of ocher in burials at Khok Phanom Di, Thailand

Ocher has been observed as a feature of burial traditions around the world, throughout history and prehistory. In Southeast Asia ocher first appears in Hoabinhian burials; however, it is used discriminately, varying within and between sites. Understanding the selection process for individuals with pigmented burials has been difficult due to their limited number. The site of Khok Phanom Di, Thailand, dating from similar to 4000 to 3500 BP, reflects the variation of pigment use seen in earlier sites, with 82% of burials found to have ocher. The cemetery's uninterrupted use for similar to 500 years, the high number and standard of preservation of human remains, and nearly four decades of bioarcheological research have facilitated a detailed study of the use of pigment in relation to bioarcheological factors. This work examines the relationship between the presence or absence of ocher within a burial and chronology, age, sex, mobility, funerary behavior, and spatial organization to understand whether there was a relationship between selective use of ocher and these attributes. The results found a relationship between ocher use and burial chronology, grave type, grave goods, and age. Multivariate analysis demonstrates that age interacts with the other predictors of ocher. Burials without ocher are almost exclusively those of perinates, these were commonly small, shallow "scoop" burials without grave goods. The presence of ocher in similar to 38% of perinate burials illustrates the complexity of selective pigment use and demonstrates the need for further research.