RT Journal Article
T1 High-resolution U-series dates from the Sima de los Huesoshominids yields 600þN-66 kyrs: implications for theevolution of the early Neanderthal lineage
A1 Bischoff, James L.
A1 Williams, Ross W.
A1 Rosenbauer, Robert J.
A1 Aramburu Artano, Arantza
A1 Arsuaga, Juan Luis
A1 García García, Nuria
A1 Cuenca Bescós, Gloria
AB The Sima de los Huesos site of the Atapuerca complex near Burgos, Spain contains the skeletal remains of at least 28 individuals in a mudbrecciaunderlying an accumulation of the Middle Pleistocene cave bear (Ursus deningeri). We report here on new high-precision dates on therecently discovered speleothem SRA-3 overlaying human bones within the Sima de los Huesos. Earlier analyses of this speleothem by TIMS(thermal-ionization mass-spectrometry) showed the lower part to be indistinguishable from internal isotopic equilibrium at the precision of theTIMS instrumentation used, yielding minimum age of 350 kyr (kyr¼ 103 yr before present). Reanalysis of six samples of SRA-3 by inductivelycoupledplasma-multicollector mass-spectrometry (ICP-MS) produced high-precision analytical results allowing calculation of finite dates. Thenew dates cluster around 600 kyr. A conservative conclusion takes the lower error limit ages as the minimum age of the speleothem, or 530 kyr.This places the SH hominids at the very beginnings of the Neandertal evolutionary lineage.
PB Elsevier Ltd.
SN 0305-4403
YR 2007
FD 2007
LK https://hdl.handle.net/20.500.14352/51294
UL https://hdl.handle.net/20.500.14352/51294
LA eng
DS Docta Complutense
RD 28 abr 2024