Table 3.

Divergence times from extrapolation and phylogeny

Group	n*	% identical	D†	TimeX,‡ My	TimeP,§ Mya
Echinoderm–chordate	2	69	52	590	—
Deuterostome–protostome	24	64	75	850	730
Schizocoelome–pseudocoelome	15	61	92	1045	815
Fungi–animal	57	54	112	1272	1130
Plant–animal	37	55	107	1215	1200
Protist–plant–animal–fungi	22	51	136	1545	1540
Archaebacteria–eukaryotes¶	8	42	212	2409	—
			(199)	(2261)	—
Eubacteria–eukaryotes‖	17	42	193	2188	—
			(183)	(2080)	—
Archaebacteria–eubacteria**	25	33	333	3784	—
			(275)	(3125)	—

^*Number of intergroup comparisons. 

^†See text for method of calculating distances (D). Values in parentheses are from medians. 

^‡TimeX = extrapolation in millions of years. Values in parentheses are from medians. 

^§TimeP from phylogenetic analysis with plant–animal = 1200 Mya. 

^¶Data from group A, Table 1, only. 

^‖Data from group B, Table 1, only. 

^**From groups A and B, Table 1.