Direct dating fossils
The possibility that dinosaur eggs might survive extreme climatic conditions is also a possible avenue to be explored.
If the new U-Pb dating technique is borne out by more fossil samples, then the KT extinction paradigm and the end of the dinosaurs will have to be revised, Heaman and his colleagues believe.
The present work joins other recent studies centering on the lower levels."Gran Dolina thus becomes one of the best-dated archaeological sites in the world, adding this new direct dating of a human fossil," says Bermúdez de Castro. The first direct ESR analysis of a hominin tooth from Atapuerca Gran Dolina TD-6 (Spain) supports the antiquity of Homo antecessor, Quaternary Geochronology (2018).DOI: 10.1016/j.quageo.20 This document is subject to copyright.Additionally, the commonly used technique of radiocarbon dating reaches back only to about 50 to 60 ka and, as a consequence, many important questions in our understanding of human evolution cannot be addressed.Recent advances in dating methods by Joannes-Boyau and Grun (2010; 2011) and Joannes-Boyau et al., (2009; 2010a,b and 2011) now allow for a more accurate non-destructive direct dating of human fossil remains, and have shown that most previous Electron Spin Resonance (ESR) age were underestimated by as much as 30% (Joannes-Boyau and Grun, 2011).