<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Reeves, Brian O.K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Concept of an Altithermal Cultural Hiatus in Northern Plains Prehistory</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">altithermal</style></keyword><keyword><style  face="normal" font="default" size="100%">bison</style></keyword><keyword><style  face="normal" font="default" size="100%">cultural hiatus</style></keyword><keyword><style  face="normal" font="default" size="100%">hunt</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1973</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.jstor.org/stable/674028</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Anthropologist </style></publisher><pub-location><style face="normal" font="default" size="100%">American Anthropological Association</style></pub-location><volume><style face="normal" font="default" size="100%">75</style></volume><pages><style face="normal" font="default" size="100%">1221-1253</style></pages><isbn><style face="normal" font="default" size="100%">0027294; 15481433</style></isbn><language><style face="normal" font="default" size="100%">en</style></language><abstract><style face="normal" font="default" size="100%">The concept of a cultural hiatus, when it is believed the Northern Plains was essentially abandoned by prehistoric bison-hunting cultures because of extremely adverse climatic conditions in the interval 5500-3000 B.C. has become generally entrenched in archaeological thought and literature. However consideration of the current palynological data and climatic models indicate that a grassland environment which supported a viable bison population existed at this time. Examination of the archaeological data indicates the lack of evidence for human occupation is a result of sampling, geological variables and nonrecognition of the artifact types in surface collections. It is concluded that the area supported a viable human population at this time whose primary adaptive strategy centered around the communal hunting of bison.</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><custom1><style face="normal" font="default" size="100%">prehistory, culture</style></custom1><custom4><style face="normal" font="default" size="100%">Humanities Bibliography</style></custom4></record></records></xml>