Extended Data Table 3.

Macroscopic indicators of bone surface preservation

Bone readability is based on the proportion of original bone surface remaining and is based on Smith et al¹⁴ low includes 0% and <50%; high includes >50% and 100%; bone weathering is based on Behrensmeyer⁷¹; low weathering includes Stages 0 and 1, while medium weathering includes Stages 2 and 3; Bone abrasion is based on the proportion of the bone surface covered by the phenomenon and is based on Smith et al.¹⁴ low includes 0% and <50%; high includes >50% and 100%.