Fig 3. The Grotta del Cavallo stratigraphy according to Palma di Cesnola.

The upper part of the Cavallo deposit as understood in the field seasons (1963–64) during which the human teeth were discovered. The different stratigraphic units recognized were designated by the excavator as follows: layer A, Neolithic; layer B, Romanellian (= Late Epigravettian); layer C, volcanic ash lens; layers D–E, Uluzzian; layers F–I, Mousterian. Reproduced from Fig 2 of ref. [19] and Figs 1–2 of ref. [20].