Science. 1978 Jun 16;200(4347):1275-7. doi: 10.1126/science.200.4347.1275.
Excavation at Taima-taima in 1976 recovered artifacts of the El Jobo complex in direct association with the butchered remains of a juvenile mastodon. Radiocarbon dates on associated wood twigs indicate a minimum age of 13,000 years before the present for the mastodon kill, a dating significantly older than that of the Clovis complex in North America. The El Jobo complex must have evolved independently in northern South America.
1976 年在泰玛泰玛的挖掘工作中,出土了与幼年乳齿象被屠宰的残骸直接相关的埃尔霍伯复合工具。与相关树枝的放射性碳测年表明,这次乳齿象捕杀事件发生在距今 13000 年以前,比北美的克洛维斯复合工具的年代要早得多。埃尔霍伯复合工具一定是在南美洲北部独立进化而来的。