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[F]oxnews.com/science/extinct-human-species-lived-together-in-siberian-cave-new-research-shows reports that "Bones recently found in a Siberian cave have given researchers a new glimpse into the timeline of an extinct human species. The species – known as Denisovans – at one time lived alongside Neanderthals in the same cave, the evidence showed."
A new study revealed that the Denisovans lived in the cave from at least 200,000 to less than 50,000 years ago. The team used optical dating– a process that measures the time since sediment was exposed to sunlight.
From https://www.inverse.com/article/52926-denisova-cave-dating-sediment-culture
Both Neanderthals and Denisovans belong to the genus Homo, though it's still not entirely clear whether the Denisovans are a separate species or a subspecies of modern humans — after all, we only have six fossil fragments to go on. Nevertheless, we're one step closer to finding out. Both studies, published in Nature, describe new discoveries in the Denisova Cave of the Altai Mountains, where excavations have continued for the past 40 years. Those efforts have revealed ancient human remains carrying the DNA of both the Denisovans and Neanderthals who made the high-ceilinged cave their home — sometimes, even having children together.
More from www.abc.net.au.
(Score: 4, Interesting) by Arik on Saturday February 16 2019, @09:01PM
It's tempting to identify them with https://en.wikipedia.org/wiki/Seima-Turbino_Phenomenon but the date on that is late enough that it could have been a second or even third repeat of roughly the same story. The close proximity to the steppes and their role in human migration means that it's hard to untangle. The steppes were ideally suited to a nomadic life, even before the horse was domesticated, and it was a place that a small hunted group could disappear - then reappear a few generations, a thousand miles away, as a large and formidable army.
So yes, you're right, many trajectories lead back to that area, and get somewhat lost in the tangle at that point.
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