Table 1.

Number of taxa with available discrete morphological data for mammalian orders at three taxonomic levels. The left vertical bar represents low coverage (<25%; dark grey (blue online)); the right vertical bar represents high coverage (>75%; light grey (orange online)). Negative net relatedness index (NRI) and nearest taxon index (NTI) values indicate phylogenetic overdispersion; positive values indicate phylogenetic clustering. Significant NRI or NTI values are in italics. *p < 0.05; **p < 0.01. (Online version in colour.)

order	taxonomic level	proportion of taxa	coverage	NRI	NTI
Mammalia (class)	family	129/148		−1.19	1.09
Mammalia (class)	genus	517/1186		−5.19	3.71**
Mammalia (class)	species	847/5017		−7.75	3.54**
Afrosoricida	family	2/2
Afrosoricida	genus	17/17
Afrosoricida	species	23/42		1.52	1.1
Carnivora	family	14/15		0.65	0.55
Carnivora	genus	52/125		4.27**	1.26
Carnivora	species	75/283		7.24**	0.8
Cetartiodactyla	family	21/21
Cetartiodactyla	genus	97/128		0.7	1.28
Cetartiodactyla	species	169/310		1.82*	−0.24
Chiroptera	family	15/18		−0.23	0.61
Chiroptera	genus	92/202		13.07**	0.99
Chiroptera	species	214/1053		9.21**	1.27
Cingulata	family	1/1
Cingulata	genus	8/9		1.48	−1.54
Cingulata	species	9/29		2.06*	0.2
Dasyuromorphia	family	2/2
Dasyuromorphia	genus	8/22		−0.78	−1.06
Dasyuromorphia	species	9/64		−0.86	−0.37
Dermoptera	family	1/1
Dermoptera	genus	1/2
Dermoptera	species	1/2
Didelphimorphia	family	1/1
Didelphimorphia	genus	16/16
Didelphimorphia	species	42/84		−1.61	0.12
Diprotodontia	family	11/11
Diprotodontia	genus	25/38		−1.15	−1.33
Diprotodontia	species	31/126		0.44	−1.79
Erinaceomorpha	family	1/1
Erinaceomorpha	genus	10/10
Erinaceomorpha	species	21/22		−1.04	−0.25
Hyracoidea	family	1/1
Hyracoidea	genus	1/3
Hyracoidea	species	1/4
Lagomorpha	family	2/2
Lagomorpha	genus	5/12		−0.95	−0.94
Lagomorpha	species	12/86		−0.62	−1.96
Macroscelidea	family	1/1
Macroscelidea	genus	4/4
Macroscelidea	species	12/15		−1.24	−1.2
Microbiotheria	family	1/1
Microbiotheria	genus	1/1
Microbiotheria	species	1/1
Monotremata	family	2/2
Monotremata	genus	2/3		−0.68	−0.69
Monotremata	species	2/4		−1.01	−1
Notoryctemorphia	family	1/1
Notoryctemorphia	genus	1/1
Notoryctemorphia	species	0/2
Paucituberculata	family	1/1
Paucituberculata	genus	3/3
Paucituberculata	species	5/5
Peramelemorphia	family	2/2
Peramelemorphia	genus	7/7
Peramelemorphia	species	16/18		−0.14	0.91
Perissodactyla	family	3/3
Perissodactyla	genus	6/6
Perissodactyla	species	10/16		−0.1	−2.77
Pholidota	family	1/1
Pholidota	genus	1/1
Pholidota	species	4/8		1.14	0.97
Pilosa	family	4/5		2.01	1.96
Pilosa	genus	4/5		−0.91	0.36
Pilosa	species	5/29		1.18	2.35**
Primates	family	15/15
Primates	genus	48/68		−0.37	−1.39
Primates	species	64/351		−0.66	−1.4
Proboscidea	family	1/1
Proboscidea	genus	2/2
Proboscidea	species	2/3		−0.67	−0.72
Rodentia	family	18/32		0.66	−0.95
Rodentia	genus	82/450		−1.81	1.7*
Rodentia	species	90/2094		2.66**	2.36**
Scandentia	family	2/2
Scandentia	genus	2/5		−0.77	−0.76
Scandentia	species	3/20		−2	−0.8
Sirenia	family	2/2
Sirenia	genus	2/2
Sirenia	species	4/4
Soricomorpha	family	3/4		−0.98	−0.97
Soricomorpha	genus	19/43		7.07**	2.64**
Soricomorpha	species	21/392		10.17**	3.36**
Tubulidentata	family	1/1
Tubulidentata	genus	1/1
Tubulidentata	species	1/1