Preceramic Sequences in the El Abra Rock-Shelters, Colombia

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Science  10 Mar 1972:
Vol. 175, Issue 4026, pp. 1106-1108
DOI: 10.1126/science.175.4026.1106


A series of crude stone artifacts, characterized by a trimming mainly of the working edge of a single face of a chert flake or a fragment of a nodule, was excavated in the El Abra rock-shelters, north of Bogotá, Colombia. The tools indicate a cultural complex distinct from others that have been described for the Paleo-Indian of South America.