Table 1.
Attributes of the taxonomic sample used in the current study.
Figure 1.
Volume of interest (VOI) selection method.
The articular surface of the humeral and femoral heads (shown in red) were extracted from a three-dimensional isosurface reconstruction. The volume of interest was scaled based on the size of a best-fit cube for the articular surface and was positioned in the center of the humeral or femoral head.
Table 2.
K-statistic calculated for select femoral head and humeral head trabecular bone measurements.
Figure 2.
Results of multivariate discriminant function analyses for the femoral head.
Symbols: red triangles, bipeds; blue squares, terrestrial quadrupeds; orange diamonds, arboreal quadrupeds; black and white squares, arboreal quadruped-climbers; cyan hexagons, quadrumanous climbers; brown triangles, brachiators; purple circles, terrestrial quadruped-climbers.
Table 3.
Stepwise discriminant function analysis for locomotor group using five femoral head trabecular bone variables.
Table 4.
Pooled within-group correlations (r) between functions and variables.
Table 5.
F-test results between groups (DF = 3, 106) for stepwise discriminant function analyses for locomotor group using five femoral head trabecular bone variables.
Figure 3.
Results of multivariate discriminant function analyses for the humeral head.
Symbols as in Figure 2.
Table 6.
Stepwise discriminant function analyses for locomotor group using seven humeral head trabecular bone variables.
Table 7.
Pooled within-group correlations (r) between functions and variables.
Table 8.
F-test results between groups (DF = 3, 106) for stepwise discriminant function analyses for locomotor group using five humeral head trabecular bone variables.
Figure 4.
Three-dimensional reconstructions of cubic trabecular bone specimens from the humerus (top) and femur (bottom) from individuals used in the current study.
Note variation in trabecular architecture between the femur and humerus, and among taxa.