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新兴的铝铍测年法给出了新的“北京人”的年龄——77万岁,20万年的时间变化对“北京人”来说意味着什么?这种测年法有什么高明之处?我们可以用哪些方法来了解古生物的年龄?
Emerging beryllium dating gives the new age of “Beijingers” - 77 million years old, what does 200,000 years mean for “Beijingers”? This dating method has What is clever? What methods can we use to understand the age of paleontology?