在 Patrick Tierney 所著的 Darkness in El Dorado 書中指出,原始部落居民不斷被現代外來文明侵擾,成為了礦工或被傳教士欺騙引誘等。[16]亞馬遜河流域的原始部落不僅人口數稀少,也面臨巴西政府的開疆計劃,壓迫其生存空間,隨著巴西軍隊的駐紮,不守規矩的士兵與部落婦女有染生下麥士蒂索人,並可能傳播現代人的疾病。
^Charles C. Mann. 1491: New Revelations of the Americas Before Columbus. New York: Alfred A. Knopf, Inc. 2005. ISBN 9781400040063.
^ 5.05.1Timothy Pauketat. The Oxford Handbook of North American Archaeology. England: Oxford University Press. 2012: 86. ISBN 9780195380118.
^ 6.06.1Linda S. Cordell, Kent Lightfoot, Francis McManamon, George Milner. Archaeology in America: An Encyclopedia. California: ABC-CLIO. 2008: 3. ISBN 9780313021893.
^Dyke, A.S., A. Moore, and L. Robertson, 2003, Deglaciation of North America.互联网档案馆的存檔,存档日期16 February 2012. Geological Survey of Canada Open File, 1574. (Thirty-two digital maps at 1:7 000 000 scale with accompanying digital chronological database and one poster (two sheets) with full map series.)
^Jordan, David K. Prehistoric Beringia. University of California-San Diego. 2009 [April 15, 2010]. (原始内容存档于2014-02-12).
^ 17.017.1Raff, Jennifer. Origin: A Genetic History of the Americas. Grand Central Publishing. 8 February 2022: 188. ISBN 978-1-5387-4970-8(英语). "Current estimates suggest that approximately 63% of the First Peoples' ancestry comes from the East Asian group and the rest from the Ancient North Siberians. We're not sure where this interaction took place. Some archaeologists believe that it occurred in East Asia, suggesting that this is where the Siberians moved during the LGM" [...] "There's also a case to be made for this interaction having taken place bear the Lake Baikal region in Siberia from genetic evidence, too" [...] "But other archaeologists and geneticists argue that the meeting of the two grandparent populations of Native Americans occurred because people moved north, not south, in response to the LGM" 引用错误:带有name属性“Raff188”的<ref>标签用不同内容定义了多次
^Pavel Flegontov, Piya Changmai, Anastassiya Zidkova, Maria D. Logacheva, N. Ezgi Altınışık, Olga Flegontova, Mikhail S. Gelfand, Evgeny S. Gerasimov, Ekaterina E. Khrameeva, Olga P. Konovalova, Tatiana Neretina, Yuri V. Nikolsky, George Starostin, Vita V. Stepanova, Igor V. Travinsky, Martin Tříska, Petr Tříska & Tatiana V. Tatarinova. Genomic study of the Ket: a Paleo-Eskimo-related ethnic group with significant ancient North Eurasian ancestry. Nature. [11-2-2016]. (原始内容存档于2016-05-03).请检查|access-date=中的日期值 (帮助)
^Zakharov, I. A., Derenko, M. V., Maliarchuk, B. A., Dambueva I. K., Dorzhu, C. M., and Rychkov, S. Y. Mitochondrial DNA variation in the aboriginal populations of the Altai-Baikal region: implications for the genetic history of North Asia and America.. Ann. N. Y. Acad. Sci. April 2004, 1011 (1): 21–35. Bibcode:2004NYASA1011...21Z. PMID 15126280. doi:10.1196/annals.1293.003.
^Stafford, Thomas W. Chronology of the Kennewick Man skeleton (chapter 5). Douglas W. Owsley; Richard L. Jantz (编). Kennewick Man, The Scientific Investigation of an Ancient American Skeleton. Texas A&M University Press. 2014. ISBN 978-1-62349-200-7.
^Tokunaga, Katsushi; Ohashi, Jun; Bannai, Makoto; Juji, Takeo. Genetic link between Asians and native Americans: evidence from HLA genes and haplotypes. Human Immunology. September 2001, 62 (9): 1001–1008. PMID 11543902. doi:10.1016/S0198-8859(01)00301-9.