Table 4.

Articular facet area and combined articular facet residual values for individual species, derived from the scaling models of facet areas relative to body mass described in Table 2

Facet	H. moloch	S. syndactylus	P. pygmaeus	G. gorilla	P. troglodytes	H. sapiens
Trochlea	0.0897	−0.133	−0.0541	−0.1277	0.0164	0.2086
Head	0.0897	−0.0878	−0.2756	−0.0574	0.1359	0.1952
Sustentaculum	0.1298	−0.0961	−0.3354	0.0278	0.1112	0.1628
Calcaneal	0.0568	−0.0513	−0.2674	−0.1063	0.1008	0.2674
Head articular unit	0.1026	−0.0780	−0.3592	−0.0630	0.1505	0.2471
Trochlea articular unit	0.0891	−0.1171	−0.1620	−0.0869	0.0891	0.1803
Subtalar joint functional unit	0.0857	−0.0711	−0.2945	−0.0526	0.1044	0.2281