Table 3.
Summary statistics of raw facet curvature data for extant specimens, measured as radius length (mm); higher values indicate lower curvatures
| Homo sapiens | Pan troglodytes | Gorilla gorilla | Pongo pygmaeus | Hylobates moloch | Symphalangus syndactylus | |
|---|---|---|---|---|---|---|
| Trochlea | ||||||
| Mean | 18.48 | 17.00 | 20.21 | 13.17 | 6.72 | 7.95 |
| Standard deviation | 2.49 | 1.52 | 2.94 | 2.72 | 0.50 | 0.83 |
| Maximum | 24.39 | 21.27 | 25.99 | 18.41 | 7.19 | 9.12 |
| Minimum | 13.88 | 13.88 | 15.33 | 9.79 | 5.53 | 6.87 |
| Head | ||||||
| Mean | 15.62 | 11.96 | 15.82 | 9.89 | 4.90 | 5.45 |
| Standard deviation | 2.41 | 1.19 | 2.30 | 1.06 | 0.49 | 0.39 |
| Maximum | 21.68 | 15.00 | 22.63 | 11.39 | 5.64 | 6.241 |
| Minimum | 11.05 | 8.86 | 12.10 | 8.37 | 3.96 | 4.94 |
| Sustentaculum | ||||||
| Mean | 22.20 | 14.42 | 18.46 | 11.27 | 6.52 | 6.45 |
| Standard deviation | 5.17 | 2.12 | 3.57 | 4.52 | 0.81 | 1.13 |
| Maximum | 36.36 | 21.70 | 29.51 | 18.75 | 8.51 | 8.66 |
| Minimum | 14.93 | 10.00 | 14.20 | 4.98 | 5.83 | 4.79 |
| Calcaneal | ||||||
| Mean | 17.42 | 14.06 | 18.63 | 14.59 | 5.74 | 7.78 |
| Standard deviation | 2.38 | 1.91 | 3.45 | 2.84 | 0.70 | 1.28 |
| Maximum | 24.89 | 21.00 | 26.63 | 18.59 | 7.04 | 9.80 |
| Minimum | 13.49 | 10.18 | 13.02 | 10.92 | 4.70 | 6.20 |