A massive, remarkably complete skull from China discovered last year may reveal the long-sought face of a Denisovan. ScienceMagArchives
Paleoanthropologist Marta Mirazón Lahr of the University of Cambridge, who was not involved in the work, says she's"skeptical of the statements about humans' long-lost sister lineage." But she and others are thrilled with the find."It's a wonderful skull; I think it's the best skull of a Denisovan that we'll ever have," says paleoanthropologist Jean-Jacques Hublin of the Max Planck Institute for Evolutionary Anthropology.
With no geological context, Ji enlisted several researchers to help date the skull. Griffith University, Nathan, geochronologist Rainer Grün and colleagues linked strontium isotopes in sediment encrusted in its nasal cavities to a specific layer of sediments around the bridge, which they dated to. Uranium series dating on the bone also gives it a minimum age of 146,000 years.
Ni, who is also a paleontologist who studies fossil dinosaurs and primates, used computational statistical methods to build and analyze a data set of more than 600 traits from the skull, such as measurements of its length and brow size, as well as the presence or absence of traits such as wisdom teeth. He compared 55 traits from 95 other fossilized skulls, jaws, or teeth from the genusfrom around the world.
The paper authors acknowledge that the find could be a Denisovan. And Chris Stringer, a paleoanthropologist at London's Natural History Museum and co-author on two of the papers, says so directly:"I think it probably is a Denisovan."
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