Fig 1.
Location of the Pleistocene sites of Ambrona and Torralba in the polje of Conquezuela, in the south of the Soria province.
Fig 2.
Lithostratigraphic sequence of the Ambrona site, defined by the S&PG team (after Pérez-González et al., 2005).
Fig 3.
Overall view of the Ambrona site faunal remains.
(A) Map of the published and unpublished faunal remains after the maps obtained from the HERC were georeferenced and vectorized; (B) Areas excavated by H&F (blue) and S&PG (red). Location of the sections used to make the stratigraphic correlation.
Fig 4.
Spatial distribution of the stratigraphic units and correlation between sections.
(A) Map showing the limits and extension of the various stratigraphic units at Ambrona (AS3 to AS6); (B) Proposed correlation among the sections made by the H&F team and those made by the S&PG team. (*) AS6 was removed by power shovel and the 1980s fieldwork. The S&PG team did not find this unit in its own fieldwork, so it is not shown in the sections.
Table 1.
Correlation between the units defined by the H&F and S&PG teams.
Fig 5.
Map of the distribution of materials and their classification according to the k-means method.
Fig 6.
Density maps of the faunal and lithic remains, obtained with Kernel and Jenks algorithm.
The lines mark off the extension of the stratigraphic units (for more information about the limits of the units, see Fig 4). The largest accumulation of lithic items is located in the “belt” containing the AS4 unit.
Fig 7.
Circular histograms produced using the D, MBR and PMA methods and showing the distribution of the various accumulations of bones (only items with elongation index > 1.6 and size > 2 cm).
Table 2.
Dispersion parameters and statistical test of the items found at Ambrona.
Fig 8.
Variation of p-values according to the elongation index (a) and length (b) of the faunal remains. The solid line delimitates the Alpha concentration, the broken line indicates the CNAmb concentration.
Fig 9.
The map shows the layout of the concentrations of faunal and lithic remains which have a higher confidence value referred to their spatial location.
Fig 10.
Density and map of faunal remains distribution.
Circular histograms of the main concentrations show the trend of the assemblages according to their location.