Museum of Natural and Cultural History, University of Oregon, Eugene, OR 97403, USA.
Science. 2011 Mar 4;331(6021):1181-5. doi: 10.1126/science.1201477.
Three archaeological sites on California's Channel Islands show that Paleoindians relied heavily on marine resources. The Paleocoastal sites, dated between ~12,200 and 11,200 years ago, contain numerous stemmed projectile points and crescents associated with a variety of marine and aquatic faunal remains. At site CA-SRI-512 on Santa Rosa Island, Paleocoastal peoples used such tools to capture geese, cormorants, and other birds, along with marine mammals and finfish. At Cardwell Bluffs on San Miguel Island, Paleocoastal peoples collected local chert cobbles, worked them into bifaces and projectile points, and discarded thousands of marine shells. With bifacial technologies similar to those seen in Western Pluvial Lakes Tradition assemblages of western North America, the sites provide evidence for seafaring and island colonization by Paleoindians with a diversified maritime economy.
加利福尼亚海峡群岛的三个考古遗址表明，古印第安人高度依赖海洋资源。这些古沿海遗址的年代在约 12200 年至 11200 年前，包含了大量与各种海洋和水生动物遗骸相关的有茎投射点和新月形石器。在圣罗莎岛的 CA-SRI-512 遗址，古沿海居民使用这些工具来捕获鹅、鸬鹚和其他鸟类，以及海洋哺乳动物和鱼类。在圣米格尔岛的卡德威尔悬崖，古沿海居民收集了当地的燧石鹅卵石，将它们加工成两面器和投射点，并丢弃了数千个海洋贝壳。这些遗址的两面器技术与北美西部的西部湿润期湖相传统组合中的技术相似，为古印第安人具有多样化的海洋经济的航海和岛屿殖民提供了证据。
