Steele D G, Powell J F
Department of Anthropology, Texas A&M University, College Station 77843-4352.
Hum Biol. 1992 Jun;64(3):303-36.
A subjective and bivariate analysis of 8500-10,000-year-old human fossil remains from North America substantiates that the fossils' closest affinities are with Asian populations. Within North American prehistoric Indian populations, increasing brachycephalization and the possible development of a larger, broader face are two structural trends that can be identified. In those respects where Paleo-Indian specimens differ from modern northern Asians and North American Indians, they tend to resemble southern Asian and European populations. These assessments generally support the inference that populations entered the New World relatively recently but before the modern northern Asian and North American features were fully developed. Based on the data examined, no date can be specified for time of entrance of the first populations, nor can the number of founding populations be discerned.
对北美8500至10000年前人类化石残骸进行的主观双变量分析证实，这些化石与亚洲人群的亲缘关系最为密切。在北美史前印第安人群体中，可以识别出两个结构趋势，即短头化加剧以及可能出现更大、更宽的面部特征。在古印第安标本与现代北亚人和北美印第安人不同的那些方面，它们往往与南亚和欧洲人群相似。这些评估总体上支持这样的推断，即人群相对较晚进入新大陆，但在现代北亚和北美特征完全形成之前。基于所审查的数据，无法确定第一批人群进入的时间，也无法辨别奠基人群的数量。
