人类抵达蒙特维德的时间被重新设定

Stratigraphic analysis resets the time of human arrival in Monte Verde, Chile Jason Rech T he small and inconspicuous archaeological site of Monte Verde, Chile—first excavated in the 1970s—captured broad attention with the incredible preservation of materials as- sociated with a Paleoindian encampment (1, 2). Excavations provided a rare glimpse into the life of early humans in the Americas with finds that included wooden lances, mastodon meat and bone, stakes and planks of wooden structures, and various species of chewed plants and seaweed. Yet the discovery timed the presence of humans in the southern tip of South America to 14,500 years ago, a few thousand years earlier than the Clovis Paleoindian sites in North Amer- ica (3). …