Extended Data Fig. 1: Field photographs showing U–Pb-dated flowstone from the indicated sites, all of which record some variation of an alternating stack of flowstones and fossil-bearing sediments.
From: U–Pb-dated flowstones restrict South African early hominin record to dry climate phases
a, The basal flowstone from Cooper’s Cave. b, c, Flowstones at Haasgat are preserved in the now-deroofed section of the deposits (b) and inside the cave (c). d, The flowstone capping the MB1 Lower Bank at Swartkrans. e, f, Flowstone from Bolt’s Farm Pit 7 at the base (e) and top (f) of the sequence. g, Flowstone capping Member 4 at Sterkfontein. h, Flowstone underlying fossil bearing sediments at Malapa. i, Flowstone sandwiched between fossil-bearing sediments at Drimolen. j, Massive flowstone at the base of Member 4 at Sterkfontein is exposed in a borehole. k, Flowstone underlying fossil-bearing sediments at Hoogland.
