Table 1

Time estimates for selected nodes in the tree of eubacteria (A-K) and archaebacteria (L-P). Letters refer to Fig. 3.

Time (Ma)^a

CI^b

Node A

102

57–176

Node B

2508

2154–2928

Node C

2800

2452–3223

Node D

1039

702–1408

Node E

2558

2310–2969

Node F

2784

2490–3203

Node G

2923

2587–3352

Node H

3054

2697–3490

Node I

3186

2801–3634

Node J

3644

3172–4130

Node K

3977

3434–4464

Node L

233

118–386

Node M

3085

2469–3514

Node N

3566

2876–3948

Node O

3781

3047–4163

Node P

4112

3314–4486

^a Averages of the divergence times estimated using the 2.3 Ga minimum constraint and the five ingroup root constraints (nodes A-K) and using the 1.198 ± 0.022 Ga constraint and the five ingroup root constraints (nodes L-P).

^b Credibility interval (minimum and maximum averages of the analyses under the five ingroup root constraints)

Battistuzzi et al. BMC Evolutionary Biology 2004 4:44   doi:10.1186/1471-2148-4-44