Table 2.

Results of the three convergence index tests as proposed by Stayton 2015¹⁰⁶ with: RelatOlfaSA = relative olfactory surface area, RelatRespiSA = relative respiratory surface area, OlfaCHAR = olfactory 3D complexity of the convex hull area ratio, and SNW = snout width.

Variables	C1	p-value	C2	p-value	C3	p-value
RelatOlfaSA + RelatRespiSA + OlfaCHAR + SNW	0.233	0.123	0.11	0.002	0.122	0.113
RelatOlfaSA + RelatRespiSA + OlfaCHAR	0.394	0.003	0.163	<1.000e-04	0.207	0.005
RelatOlfaSA + OlfaCHAR	0.408	0.009	0.165	<1.000e-04	0.217	0.003