Javisst. Yxan, en ceremoniell begravningsyxa, är daterad till ca 2500 f.Kr.paulderfinne skrev:
Tja, då gissar jag diamant. Kanske fanns det nån sorts rådiamant där som användes
Din fråga.
http://www.sciencenews.org/articles/20050219/fob3.asp
Javisst. Yxan, en ceremoniell begravningsyxa, är daterad till ca 2500 f.Kr.paulderfinne skrev:
Tja, då gissar jag diamant. Kanske fanns det nån sorts rådiamant där som användes
Samma hemsida betraktar Lagar Velho som en möjlig assimilationsform:What may be the latest surviving Neanderthals currently known comes from the Zafarraya Cave, near Andalucia, Spain. The upper levels of this site have been thorium/uranium and C14 to approximately 27 kyr, and the sequence may extend as late as 25 kyr. Material from the site include a nearly complete mandible, a mandible that has been burnt, a partial Os coxa, a femur, and an upper incisor. The femur shows affinities with both Neanderthals (thick cortical bone, circular midshaft cross-section), but also shows affinities to later Europeans (development of a pilaster, thin femoral neck dimensions, shaft expanded anteriorly-posteriorly). The complete mandible more closely links this material to Neanderthals, with features such as:
* Small teeth with a very robust mandibular corpus.
* A vertical symphysis with a mental trigone.
* A slight mental eminence.
* A mental foramen positioned under the P4.
* A gap between the front of the ascending ramus and the back of the third molar.
* Moderately large anterior teeth.
paulderfinnes fråga.Currently, the pendulum has swung to general support for the Out of Africa II model of people like C.B. Stringer, especially in the public. However, current research is cutting both ways, with sites such as Vindija and Lagar Velho seemingly giving support to Neanderthal assimilation models. Also, there is much research into the genetics of Neanderthals versus modern humans, most of which point to a 700 kyr separation of the two species. However, these genetic studies are seriously flawed, and newer studies that are theoretically sound need to be conducted before the results are taken as true.