Nick Patterson &all; Genetic evidence for complex speciation of humans and chimpanzees Nature 441, 1103-1108 (29 June 2006) | doi:10.1038/nature04789; Received 5 November 2005; Accepted 7 April 2006; Published online 17 May 2006[1] quote: "chromosome X shows an extremely young genetic divergence time, close to the genome minimum along nearly its entire length. These unexpected features would be explained if the human and chimpanzee lineages initially diverged, then later exchanged genes before separating permanently."
The early Upper Paleolithic human skeleton from the Abrigo do Lagar Velho (Portugal) and modern human emergence in Iberia – Cidália Duarte, João Maurício, Paul B. Pettitt, Pedro Souto, Erik Trinkaus, Hans van der Plicht, and João Zilhão, PNAS Vol. 96, Issue 13, 7604-7609, June 22, 1999 [2]
An early modern human from the Petera cu Oase, Romania – Erik Trinkaus et al, PNAS | September 30, 2003 | vol. 100 | no. 20 | 11231-11236
[3]; quote: "It therefore presents a mosaic of archaic, early modern human and possibly Neandertal morphological features, emphasizing both the complex population dynamics of modern human dispersal into Europe and the subsequent morphological evolution of European early modern humans"
Early modern humans from the Petera Muierii, Baia de Fier, Romania – Andrei Soficaru*, Adrian Dobo, and Erik Trinkaus, PNAS | November 14, 2006 | vol. 103 | no. 46 | 17196-17201 [4]