Table 2. Data used in the taxonomic distinctness regression analyses.

		Order	# of species	Δ+	log(# of sp)
Diplopoda-Penicillata		Polyxenida	108	82.81	2.03
Diplopoda-Pentazonia		Glomeridesmida	32	41.54	1.51
		Glomerida	283	71.76	2.45
		Sphaerotheriida	332	79.21	2.52
Diplopoda-Helminthomorpha	Colobognatha	Platydesmida	68	76.76	1.83
		Polyzoniida	130	62.9	2.11
		Siphonophorida	121	45.72	2.08
		Siphonocryptida	3	31.25	0.48
		Siphoniulida	2	25	0.3
	Juliformia	Julida	1342	88.1	3.13
		Spirobolida	1247	89	3.1
		Spirostreptida	1906	88.42	3.28
	Nematophora	Chordeumatida	1138	96.7	3.06
		Callipodida	125	85.07	2.1
		Stemmiulida	144	56	2.16
	Merocheta	Polydesmida	5070	96.26	3.71
Chilopoda	Notostigmomorpha	Scutigeromorpha	206	71.61	2.31
	Pleurostigmomorpha	Lithobiomorpha	1861	60.89	3.27
		Craterostigmomorpha	1	0	0
		Scolopendromorpha	1328	78.3	3.12
		Geophilomorpha	1665	90.53	3.22
Arachnida		Pseudoscorpiones	3432	95.62	3.54

The diplopod orders Siphonocryptida and Siphoniulida and the chilopod order Craterostigmomorpha were excluded from the plots and regressions. Δ+ = taxonomic distinctness as defined by Clarke and Warwick [2].