174,000 km 2 ) in Wallacea, per biogeographically distinct ceinture of oceanic islands situated between continental Oriente and Australia (Fig. 1). The earliest archaeological evidence is from Talepu, a Middle Pleistocene site in the south of the island (1). The Talepu findings comprise mediante situ stone artifacts associated with fossils of extinct terrestrial megafauna (1). Dated esatto
194 esatto 118 thousand years (ka), these artifacts may reflect initial colonization by an as-yet unidentified archaic hominin (1). It is not yet indivisible when anatomically modern humans (AMH) first colonized Sulawesi. AMH appear to have been established mediante mainland Southeast Oriente (Sunda) by 73 puro 63 ka (2). They were also possibly durante Pleistocene Australia–New Guinea (Sahul) by 69 puro 59 ka (3). There is some controversy, however, over the validity of the latter age estimates (4), which are based on recent excavations at Madjedbebe rock shelter durante northern Australia (3). Con some models of early human settlement per Sahul, the large Sulawesi landmass would have been the first “stop” on a series of ocean crossings through northern Wallacea to the western tip of New Guinea (5). If the oldest published dates for Madjedbebe (3) are admissible, then Homo sapiens may have reached Sulawesi up puro 69 sicuro 59 ka.
450-km 2 lowland “tower” karst region per the island’s southwestern peninsula (Fig. 1). Some 300 caves and shelters with parietal imagery have now been identified per this settore. Two cave art sites are also known from the Bone karsts
35 km to the east (Fig. 1). At least two chronologically distinct styles of rock art are evident on the basis of scientific dating and studies of superimposition. These comprise (i) an initial style phase of well-established Pleistocene antiquity (6, 7) and (ii) a later phase that postdates the arrival of Austronesian-speaking farmers and the onset of the “Neolithic” farming transition around 4 ka (9). Where giammai sequence of superimposition is evident, the former is distinguishable from the latter sopra terms of subject matter, technique, and preservation (6, 10).
Materials and methods
24 onesto 16 ka (18). Evidence for rock art production of per broadly similar antiquity is found per karst areas con the adjacent island of Borneo: At Lubang Jeriji Saleh, a high-level limestone cave sopra Kalimantan, U-series dating indicates verso minimum age of 40 ka for verso figurative painting of verso Bornean banteng (Bos javanicus lowi) (19).
U-series isotope dating at Leang Tedongnge
12 mm 2 ) overlaid the red pigment associated with one of the rear feet of pig 1 on the main rock art panel (Fig. 5, Verso to C). This speleothem was too small in size onesto remove with a rotary tool. Hence, we used a small chisel puro prise it from the cave wall surface. The recovered sample (LTed3) comprises multiple layers of dense and nonporous calcite. The portion of speleothem we removed from the cave wall extends from its outer surface through the pigment layer and into the underlying rock face (Fig. 5, D and E). After we had removed it from the cave wall, we noted that the portion of the underlying paint layer previously covered by the coralloid speleothem had come away with the latter-that is, the rock art pigment was affixed onesto the punto of the sampled speleothem. In the laboratory, we micro-excavated LTed3 sopra arbitrary “spits” that extended over the entire surface of the speleothem. This produced per series of four aliquots measuring less than 1 mm con thickness (Fig. 5, F onesto G). We observed the red pigment layer corresponding onesto the artwork across the entire length of the sample. The pigment layer was recensioni guardian soulmates also clearly visible con the rear portion of the sample that was partially covered by translucent calcite from the cave wall (Fig. 5E). Mediante total, we obtained three U-series age determinations for the LTed3 speleothem (Table 1). The resultant dates yielded indistinguishable ages within uncertainties (Table 1). This suggests closed-system conditions for uranium and thorium (Materials and Methods). The results of U-series dating indicate verso minimum age of 45.5 ka for the large figurative image of verso suid at Leang Tedongnge (Fig. 3 and Materials and Methods).