Table 1.

Summary table of U-Th disequilibrium ages obtained for samples from the Dinaledi Chamber by James Cook University (JCU - ¹) and the University of Melbourne (UoM - ²). The detailed analytical results are shown in Tables 2 and 3. Sample locations are shown in Figure 1b. The data are ranked by increasing age of the oldest flowstone horizon within the sample, based on the JCU ages. The grey shading highlights the different age groupings observed within the flowstones: 24–32 ka, ~50 ka, 88–105 ka, ~242 ka, ~290 ka and >440 ka. Ages are reported relative to 1950.

DOI: http://dx.doi.org/10.7554/eLife.24231.006

Sample ID	Flowstone group	Underlying unit	Age1 (ka)	2σ1 (ka)	Age2 (ka)	2σ2 (ka)
RS19	FS2	sub-unit 3b	24.7	0.2	24.53	0.43
RS11	FS3 (top to RS21)	FS2	9.05	0.06	9.946	0.063
RS21	FS2 (base to RS11)	sub-unit 3b	28.4	0.4	28.62	0.29
RS10	FS2	sub-unit 3b (and bone)	30.1	0.3	–	–
RS20	FS2	sub-unit 1a (Facies 1a; OSL5)	30.4	0.2	32.12	0.38
RS6	FS2	sub-unit 1a, sub-unit 3b	49.8	0.3	50.82	0.43
RS15	FS2 (blind duplicate of RS1)	sub-unit 3b	92.6	1.0	91.40	0.65
RS1	FS2 (blind duplicate of RS15)	sub-unit 3b	–	–	91.04	0.72
RS8	FS2 (below FS1a-e)	sub-unit 3b	95.0	1.0	96.29	0.69
RS14	FS2	in drain, along dolostone wall	100.1	1.2	96.20	0.36
RS17	FS2 (top to RS16)	in drain, along dolostone wall	102.6	0.8	98.6	1.4
RS16	FS2 (base to RS17)	in drain, along dolostone wall	104.0	1.9	99.1	1.4
RS13	FS2 (rim to RS18)	sub-unit 3b	–	–	88.46	0.67
RS18	FS1c (core to RS13)	sub-unit 3b	242	5	242.9	6.6
RS5	FS1	sub-unit 1b (Facies 1b; OSL4)	290	6	–	–
RS22	FS1a (top to RS23)	Unit 2	equilibrium	–	478	+107/−41
RS23	FS1a (base to RS22)	Unit 2	equilibrium	–	502	+181/−53
RS9	n/a (surface outcrop)	n/a	equilibrium	–	equilibrium	–

 ¹James Cook University (JCU), Advanced Analytical Centre.

 ²University of Melbourne (UoM), paleochronology laboratory.