Sahelanthropus tchadensis dating techniques
And yet, from its shape, paleoanthropologists have concluded that the specimen must have walked upright."The position of its foramen magnum"—the spot where the brain connects to the spinal cord—"has historically been argued to be associated with bipedalism," said Harrison.Is the human evolutionary fossil record a crapshoot? There are reasons why this branch of science may seem messier than most, he said, but all things considered, it is doing extremely well.One in a million "In science, there are always differences in interpretation and debate. But it takes even longer with historical sciences – ones that don't allow experiments," Harrison said."Homoplasy is a real problem in the study of the fossil record, whether we're talking about humans or other groups," Jungers told Life's Little Mysteries."It's a complicating factor that a similarity doesn't necessarily imply shared ancestry or a particularly close relationship.But we would argue it seems to look like many of the forms of the apes we have seen from that period." Skepticism regarding these famous primate fossil finds seems to call into question the rigor of the scientific process within the field of paleoanthropology.
No doubt it will spawn a new orthodoxy, which will be taught with just as straight a face, until the next ‘revolutionary’ discovery (this one is said to have the ‘impact of a small nuclear bomb’.Slowly, more scientists get a chance to look at the specimens, and the debate continues and eventually gets resolved." Finding the correct ages of fossils is also problematic."There are spectacular techniques to date excavation sites, but there are limits to what you can use them on," Harrison said.The Image of God DVD ‘A tree dwelling, hairy creature with a long tail and pointed ears …’ That’s how Charles Darwin imagined our ancestors.