man kann auch menschliche DNA aus dem sediment filtern ohne knochenfunde. also gewissermaßen spurenelemente der menschen, die dort anwesend waren.
zudem wusste man schon vor etlichen jahrzehnten, dass manche indianer (historische schädel) eine gewisse neandertal-ähnlichkeit besaßen, aber man hatte keine erklärung dafür.
hier das abstract zu der sediment geschichte aus science
Abstract
Although a rich record of Pleistocene human-associated archaeological assemblages exists, the scarcity of hominin fossils often impedes the understanding of which hominins occupied a site. Using targeted enrichment of mitochondrial DNA we show that cave sediments represent a rich source of ancient mammalian DNA that often includes traces of hominin DNA, even at sites and in layers where no hominin remains have been discovered. By automation-assisted screening of numerous sediment samples we detect Neandertal DNA in eight archaeological layers from four caves in Eurasia. In Denisova Cave we retrieved Denisovan DNA in a Middle Pleistocene layer near the bottom of the stratigraphy. Our work opens the possibility to detect the presence of hominin groups at sites and in areas where no skeletal remains are found.
Das Posting wurde vom Benutzer editiert (28.04.2017 05:41).