MACROFLORAL ANALYSIS OF SAMPLES FROM SITE CA-SMA-151, CENTRAL COASTAL CALIFORNIA

Three midden samples from arbitrary 10-centimeter levels in a column at shell mound
site CA-SMA-151 in San Mateo County, coastal California, were examined for macrofloral
remains. The lowest level of the column stopped at the level above a human burial. The site is
within the Coastanoan/Ohlone ethnographic area, and similar sites in the area have been dated
to the Late Period, about 1200-1300 A.D. Conventional radiocarbon ages of 1090 ± 40 BP and
920 ± 40 BP were obtained on mussel shell from CA-SMA-151. Macrofloral analysis is used to
provide information concerning plant resources utilized by the occupants of this site.

对加州沿海圣马特奥县贝丘遗址CA-SMA-151发掘剖面柱中任意选取的10厘米层级的3份贝冢样品，开展了大植物遗存（macrofloral remains）检测分析。该发掘剖面柱的最底层终止于一处人类墓葬上方的地层。该遗址地处科斯塔诺安/奥隆尼（Coastanoan/Ohlone）民族志分布区域，该区域内的同类遗址年代可追溯至公元1200至1300年的考古晚期阶段。针对CA-SMA-151出土的贻贝壳开展常规放射性碳定年，获得1090±40 BP与920±40 BP的测年数据。本研究通过大植物遗存分析，旨在揭示该遗址先民所利用的植物资源相关信息。