Science. 1979 Jan 12;203(4376):131-42. doi: 10.1126/science.203.4376.131.
Artifactual and nonartifactual evidence from the lacustrine shores of the Chalco-Xochimilco Basin suggest the existence of fully sedentary human communities in the Basin of Mexico from at least the sixth millennium B.C.
从查尔科-霍奇米尔科湖岸的人工制品和非人工制品证据可以看出，早在公元前 6000 年，墨西哥盆地就已经存在完全定居的人类社区。
