Table 3.

The relationship between body size and forelimb length

	Main phylogeny			Godefroit et al. (2013) phylogeny
(a)	Coef. (±SE)	t	P	Coef. (±SE)	t	P
Int. Aves	0.396 (0.158)	2.50	<0.05	1.136 (0.257)	4.42	<0.001
Int. Paraves	0.627 (0.212)	2.95	<0.01	-0.426 (0.280)	−1.52	0.13
Int. Other	−0.411 (0.211)	−1.94	0.056	−1.227 (0.307)	−3.99	<0.001
Femur: Aves	1.108 (0.095)	11.66	<0.001	0.646 (0.150)	4.30	<0.001
Femur: Paraves	−0.443 (0.123)	−3.59	<0.001	0.170 (0.162)	1.05	0.299
Femur: other	−0.011 (0.113)	−0.098	0.921	0.484 (0.167)	2.89	<0.01
(b)
Int. Aves	0.423 (0.209)	2.01	0.047	1.230 (0.304)	4.03	<0.001
Int. Other	0.251 (0.232)	1.08	0.283	0.566 (0.171)	3.30	<0.01
Femur: Aves	1.061 (0.120)	8.84	<0.001	−0.587 (0.319)	−1.83	0.073
Femur: other	−0.247 (0.132)	−1.87	0.064	0.259 (0.179)	1.44	0.155

PGLS ANOVA models for the relationship between femur and forelimb length including an interaction term with three levels designating major taxa—Aves, Paraves, and remaining taxa (other, a)—and an interaction term with two levels—Aves and remaining taxa (other, b). P-values show whether parameters differ from 0 (for Aves), or from Aves (Paraves and other). Also see Figure2.

PGLS, phylogenetic generalized least squares.