从天门冬氨酸消旋作用推断北美人类古老性的新证据。
New evidence for the antiquity of man in North America deduced from aspartic acid racemization.
作者信息
Bada J L, Schroeder R A, Carter G F
出版信息
Science. 1974 May 17;184(4138):791-3. doi: 10.1126/science.184.4138.791.
PMID:4595240
Abstract
Ages of several Californzia Paleo-Indlian skeletons have been deduced from the extent of aspartic acid racemization. These dates suggest that man was present in North America at least 50,000 years before the present.
摘要
通过天冬氨酸消旋作用的程度，已推断出几具加利福尼亚古印第安人骨骼的年代。这些年代表明，人类在北美洲出现的时间至少比现在早5万年。
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