Additional Supporting Information may be found in the online version of this article.

AJPA_22109_sm_SuppTab1.docx115KSupporting Information Table 1. Mean sex/species values of superior cortical thickness (SUP, in mm), inferior cortical thickness (INF, in mm) and body mass (BM, in kg), as well as SUP/INF ratios, allometric residuals of SUP vs. INF (RES) and allometric residuals of SUP vs. BM (RESBM), in extant primates and Hispanopithecus laietanus (in bold type). In the case of H. laietanus, both the estimated BM and its confidence intervals (see Moyá-Solá et al., 2009) have were employed to compute RESBM (confidence interval values reported within parentheses). Residuals were computed on the basis of non-hominoid regressions reported in Table S2. Locomotor subgroups employed in ANOVA comparisons (Table S3) are also reported.
AJPA_22109_sm_SuppTab2.docx97KSupporting Information Table 2. Allometric regression equations derived for intrinsic proportions and proportions relative to body mass of the femoral neck cortical thickness in extant primates. Regressions were derived using the least-square method (OLS), but reduced major axis (RMA) slopes also reported within parentheses.
AJPA_22109_sm_SuppTab3.docx78KSupporting Information Table 3. Descriptive statistics for the several metrics of proportions of femoral neck cortical thickness employed in this paper (see Table S1).
AJPA_22109_sm_SuppFig1.tif5147KSupporting Information Figure 1. Posterior view of the most proximal part of the right femur of H. laietanus showing the main axis of the femoral neck (A). This axis was calculated drawing a line between the most lateral border of the femoral head (1) and the femoral neck-greater trochanter junction (2). Then, a parallel line was drawn through the center of the femoral head (3), defining the main axis of the femoral neck. Afterwards, two orthogonal lines to this main axis were drawn in the base of the head and in the femoral neck-greater trochanter junction (1 and 2 in A), defining the femoral neck length. This length was divided into eight equal parts separated 0.6 mm one to the other (B). The middle slice was selected to take the measurements of the cortical thickness. This slice was situated in the 38% of the femoral length between the middle point of the head and the intersection of the femoral neck axis with the long axis of the shaft; our measurements are thus comparable with those employed by other authors (e.g., Rafferty, 1998; Demes et al., 2000). Art work by Marta Palmero..

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