Moontanman Posted January 25, 2018 Share Posted January 25, 2018 (edited) New evidence may push back the appearance of modern humans to 500,000 years. Early human migration out of Africa and interbreeding with more archaic humans is thought to have occured. https://www.livescience.com/61532-oldest-human-fossils-outside-africa.html? Edited January 25, 2018 by Moontanman Link to comment Share on other sites More sharing options...
Raider5678 Posted January 25, 2018 Share Posted January 25, 2018 16 minutes ago, Moontanman said: New evidence may push back the appearance of modern humans to 500,000 years. Early human migration out of Africa and interbreeding with more archaic humans is thought to have occured. https://www.livescience.com/61532-oldest-human-fossils-outside-africa.html? How was this dated? Link to comment Share on other sites More sharing options...
Moontanman Posted January 25, 2018 Author Share Posted January 25, 2018 4 minutes ago, Raider5678 said: How was this dated? Quote Features of this new fossil look more like those seen in current humans than in fossils of similar age from the Ethiopian sites of Omo and Herto, the researchers said. The fact that such modern features evolved earlier than previously thought "suggests that our biological history needs to be pushed back to a much earlier period — not 200,000, but probably 500,000 years,"Hershkovitz told Live Science. "The history of our own species, Homo sapiens, is longer and probably more complicated than scientists had previously believed." Link to comment Share on other sites More sharing options...
Raider5678 Posted January 25, 2018 Share Posted January 25, 2018 28 minutes ago, Moontanman said: So, it was dated because it looked modern? Link to comment Share on other sites More sharing options...
Moontanman Posted January 25, 2018 Author Share Posted January 25, 2018 5 minutes ago, Raider5678 said: So, it was dated because it looked modern? Visit the link, it's legitimate, it just caught my eye a while ago... Link to comment Share on other sites More sharing options...
J.C.MacSwell Posted January 27, 2018 Share Posted January 27, 2018 Any thoughts on why a 177,000 to 194,000 year old find outside of Africa, of apparently Sapiens teeth, would push things back that much? At a glance that seems a stretch. Link to comment Share on other sites More sharing options...
StringJunky Posted January 27, 2018 Share Posted January 27, 2018 6 minutes ago, J.C.MacSwell said: Any thoughts on why a 177,000 to 194,000 year old find outside of Africa, of apparently Sapiens teeth, would push things back that much? At a glance that seems a stretch. They used more techniques that backed each other up. Basically, advances in dating methods pushed it back. Quote The researchers used three independent dating techniques on the jaw, dubbed Misliya-1, revealing that its owner lived between 177,000 and 194,000 years ago. Before this discovery, the earliest modern human fossils unearthed outside Africa were estimated to be between 90,000 and 120,000 years old. Link to comment Share on other sites More sharing options...
J.C.MacSwell Posted January 27, 2018 Share Posted January 27, 2018 1 minute ago, StringJunky said: They used more techniques that backed each other up. Basically, advances in dating methods pushed it back. Thanks. If we assume that is correct, almost 200,000 years old, why does it reflect back to 500,000 years? Link to comment Share on other sites More sharing options...
StringJunky Posted January 27, 2018 Share Posted January 27, 2018 4 minutes ago, J.C.MacSwell said: Thanks. If we assume that is correct, almost 200,000 years old, why does it reflect back to 500,000 years? Moon added a '0'. 1 Link to comment Share on other sites More sharing options...
J.C.MacSwell Posted January 27, 2018 Share Posted January 27, 2018 20 minutes ago, StringJunky said: Moon added a '0'. +1...but only because I laughed... Link to comment Share on other sites More sharing options...
EdEarl Posted January 27, 2018 Share Posted January 27, 2018 35 minutes ago, J.C.MacSwell said: Thanks. If we assume that is correct, almost 200,000 years old, why does it reflect back to 500,000 years? No DNA to help; thus, inspection of the artifact must be causal. What did they see that would suggest such a date? For me to make such an estimate, I'd want several correlations and inconclusive evidence. The teeth are similar to ours, how long would it take for them to evolve from another more distant ancestor. What else can be teased from the artifact? Link to comment Share on other sites More sharing options...
CharonY Posted January 27, 2018 Share Posted January 27, 2018 On 1/25/2018 at 2:03 PM, Moontanman said: New evidence may push back the appearance of modern humans to 500,000 years. Early human migration out of Africa and interbreeding with more archaic humans is thought to have occured. https://www.livescience.com/61532-oldest-human-fossils-outside-africa.html? Just to make it clear, the study really pushes back the time humans left Africa, but the second bit is far more speculative and not an element of the actual report. Link to comment Share on other sites More sharing options...
Moontanman Posted January 27, 2018 Author Share Posted January 27, 2018 9 minutes ago, CharonY said: Just to make it clear, the study really pushes back the time humans left Africa, but the second bit is far more speculative and not an element of the actual report. Quote 12 minutes ago, CharonY said: Just to make it clear, the study really pushes back the time humans left Africa, but the second bit is far more speculative and not an element of the actual report. https://www.livescience.com/61532-oldest-human-fossils-outside-africa.html? Quote What it all means Features of this new fossil look more like those seen in current humans than in fossils of similar age from the Ethiopian sites of Omo and Herto, the researchers said. The fact that such modern features evolved earlier than previously thought "suggests that our biological history needs to be pushed back to a much earlier period — not 200,000, but probably 500,000 years,"Hershkovitz told Live Science. "The history of our own species, Homo sapiens, is longer and probably more complicated than scientists had previously believed." The author of the paper states that is does. Link to comment Share on other sites More sharing options...
CharonY Posted January 27, 2018 Share Posted January 27, 2018 (edited) He is saying that in an interview, but quickly skimming through the paper it does not come up there. From the paper: Quote To date, Misliya-1 appears to represent the earliest fossil evidence of the migration of members of the H. sapiens clade out of Africa. It therefore opens the door to the possibility that H. sapiens dispersal from Africa could have occurred earlier than previously thought (probably before 200 ky ago), as has been recently suggested based on genetic evidence As the main conclusion. The second part is likely a extrapolation/speculation from there. Edited January 27, 2018 by CharonY Link to comment Share on other sites More sharing options...
Moontanman Posted January 27, 2018 Author Share Posted January 27, 2018 17 minutes ago, CharonY said: He is saying that in an interview, but quickly skimming through the paper it does not come up there. From the paper: As the main conclusion. The second part is likely a extrapolation/speculation from there. Ok, point taken... Link to comment Share on other sites More sharing options...
MarkE Posted January 27, 2018 Share Posted January 27, 2018 Are there any implicitions to our current anthropological or paleontological views on evolution/life/intelligence we have to revise and update now, or doesn’t this study change our perspective on our species/origins that much? And has it already been determined how many migrations there have been from Africa? Just one? Link to comment Share on other sites More sharing options...
J.C.MacSwell Posted January 27, 2018 Share Posted January 27, 2018 28 minutes ago, MarkE said: Are there any implicitions to our current anthropological or paleontological views on evolution/life/intelligence we have to revise and update now, or doesn’t this study change our perspective on our species/origins that much? And has it already been determined how many migrations there have been from Africa? Just one? I think we are genetically indebted to more than one., though quite possibly mostly to one (plus of course the ones who stayed behind). Link to comment Share on other sites More sharing options...
Recommended Posts