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Tjos Please Return to DOCUMENT CONTROL 22 G=O&OO~& c §®&\®©@ Susitna Joint Venture Document Number ;;tJOS Please Return To DOCUMENT CONTROL 22 WERE CLOVIS PROGENITORS IN BERINGIA? C. Vance Haynes The Clovis culture represents the earliest clearly defined culture known in North America and is restricted to a period of only 500 years between 11,500 and 11,000 years ago. Clovis tool kits vary from site to site, and there are regional variations al­ though samples are still woefully inadequate to determine regional differences in lifestyles. Clovis people appear to have been foragers but primarily were hunters of mammoth and bison for both food and material resources. An Old World origin for Clovis seems probable on the basis of comparisons of their bone and stone technology with that of Europe and Siberia during the late Paleolithic. In eastern Siberia before 11,000 BP, there appear to have been two distinct lithic tradi­ tions, one dominated by microblades (Dyuktai) and one without microblades (Mal'ta­ Afontova). Clovis may have been a descendant of the latter people, who crossed Beringia in pursuit of big game between 20,000 and 15,000 years ago when steppe-tundra united the two northern continents. Subsequent decline of steppe-tundra and Pleistocene megafauna after 15,000 BP may have led the hunting cultures farther south-eastward until they passed from the habitats of M. primigenius to those of M. columbi and M. jeffersoni about 13,000 to 12,000 years ago. The nearly explosive increase and spread of the Clovis culture thereafter may have been the direct result of this contact with game resources not previously exploited by man, or at least not with the intensity brought to bear by the Clovis big game specialists. The Clovis dispersal took place during a period of the greatest environmental change subsequent to the end of the Sangamon inter­ glacial. The combination was more than many elements of the Pleistocene megafauna could withstand. Key words: Paleoindian, Clovis, Quaternary extinction, radiocarbon dating, paleoclimates Statistical evaluation of 21 dates from the Lehner INTRODUCTION site and 10 dates from the Murray Springs site indicate Clovis in Arizona to be 11,000 ± 100 The Clovis culture, marked by distinctive fluted years old (Fig. 1). This evidence, combined with projectile points commonly found in situ with the lack of evidence of man south of Canada be­ bones of large extinct mammals, represents the fore Clovis, has led me to suggest that Clovis pro­ earliest clearly defined culture known thus far in genitors may have been a distinct infusion of late North America (Hester, 1966). Stratigraphically Pleistocene megafauna hunters from Siberia who, controlled radiocarbon dating has shown that once south of the North American ice sheets, Clovis sites were occupied within a remarkably found abundant game and resources (Haynes, restricted period of only 500 years between 1964). This abundance promoted rapid population 11,500 to 11,000 BP (Haynes, 1970, 1980). growth and expansion of fluted-point-making PALEOECOLOGY OF BERINGIA Copyright© 1982 by Academic Press, Inc. 383 All rights of r~production in any form reserved. ISBN 0-12·355860·3 384 HAYNES people throughout the Americas in the millenium with Clovis assemblages. This could be the result 11,500-10,500 BP, coincident with the extinction of an insufficient number of radiocarbon-dated of the Pleistocene megafauna (Haynes, 1966). P.S. sites with adequate quantities of artifacts, but, on Martin (1973) has carried this a step further by the other hand when Clovis traits are compared suggesting that Clovis man, being a superpredator, with those of certain Paleolithic cultures in the expanded as a concentrated wave-front leaving Old World, several unmistakable similarities be­ behind a land sparsely populated by man and come evident. devoid of mammoth, horse, camel, and some other If we assume that Clovis progenitors came from elements of the megafauna. eastern Siberia by way of Beringia, then what The main alternate hypothesis for Clovis origin pathways did they use and how are Alaskan finds is that the culture developed within the Americas related to their migration into the New World? In from a population present in the New World be­ order to develop pertinent hypotheses I will first fore late Wisconsin glaciation began 30,000 to examine the Clovis culture, then compare it to Late 50,000 BP (Bryan, 1969; Bonnichsen, 1978; Paleolithic sites of the Old World, and finally Stanford, 1978). examine the record in eastern Beringia for possible The difficulty with a hypothesized indigenous Clovis progenitors. origin for Clovis is the lack of conclusive evidence of the presence of earlier cultures with a develop­ mentally antecedent technology. The dating of THE CLOVIS CULTURE some and the nature of other postulated pre-Clovis sites south of the ice sheets are still equivocal, and The single most diagnostic artifact that reveals tool assemblages from these sites do not reveal a the former presence of Clovis people is the lance­ developmental sequence forming a continuum alate Clovis fluted projectile point. The Clovis ..... ...,..... ..... ..... w ..... 0 CQ b 0 b b 0 0 0 0 0 0 RADIOCARBON YRS. B.P. 0 ~ 0 0 0 Lehner {av. of 21) • Murray Springs {av. of 10) • Clovis (av. of 3) 0 1---*--1 r- I I Dent 0 • < I I U.P. Mammoth Site C/)- • f--ei Colby (av.of 2) I • I Domebo { av. of 2) 1---*--1 Clovis (av. of 4) ~ Fotsom (bone) "TI 0 1-*---1 Lindenmeier ( av. of 2) r- C/) 1-:-*---1 Hell Gap (av. of 3) 0 I • I Brewster 3: I • I Hanson (av.of 2) I I Shawnee-Minisink (2) •• De bert { av. of 13) Figure 1. Comparison of radiocarbon dates at stratified sites of fluted point cultures in North America HAYNES 385 point is characterized by one or more long, rela­ during Clovis time than at any time during the tively narrow, longitudinal flake scars removed previous 10,000 years (Haynes, 1968). This may from both sides of the points by applying pressure have played a significant role in animal extinction or percussion to a specially prepared platform at at the end of the Pleistocene. Modern elephants the base. Distinctive Clovis points have been found follow traditional trails and have an affinity for on the surface from the Canadian plains to Central certain springs (Olivier, this volume), and the con­ Mexico and from coast to coast. Where strati­ centration of animals around a reduced number of graphic successions permit, correlations on the end-of-Pleistocene watering places may have basis of culture, fauna, vegetation changes, and enhanced man's role in extinction. Whether radiocarbon dating are consistent. Strata below or not P.S. Martin's (1973) wave-front over­ Clovis levels are without archaeological evidence kill theory is correct, it is apparent that Clovis in spite of evidence of suitable game animals in hunters contributed to the extinction of Pleisto­ the western successions. Levi Rock Shelter, Texas cene megafauna. (Alexander, 1978), and the Dutton-Selby sites, Clovis tool kits vary from site to site, and there Colorado (Stanford, 1979), are claimed to be are suggestions of regional variations, but the exceptions, but the evidence is not convincing. samples are still woefully inadequate. The projec­ Studies of late Quaternary alluvium reveal that tile points are invariably fluted on at least one side most streams in the United States were in a de­ and vary greatly in size and shape. No better gradational mode during the final phase of degla­ example of this variation is known than the eight ciation about 12,000 years ago. By 11,500 BP, Clovis points (Fig. 2) found with the single mam­ Clovis people were occupying riparian sites on moth skeleton at Naco, Arizona (Haury, et al., abandoned terraces along streams that had be­ 1953), and if the other Clovis sites within the San come considerably smaller in channel area than Pedro Valley are taken into consideration an even during the preceding 10,000 years. In the south­ greater variation is seen (Haury, et al., 1959; western United States Clovis sites along these Hemmings and Haynes, 1969; Hemmings, 1970). channels were buried about 11,000 years ago by On the other hand, similar forms can be seen in clayey silts washed from adjacent slopes as aggra­ widely separated regions. dation occurred (Haynes, 1968). Resharpening of Clovis points was a common Mammoths became extinct after 11,000 BP, practice, and impact damage to point tips clearly and Clovis evolved into Folsom, Plano, and other indicates that they were indeed propelled (Fig. 3 ). cultures that developed great skill .in hunting Broken points were reversed in reworking in at bison, one of the few target species of Clovis least one case, and one longitudinally split point hunters to survive into the Holocene. After 7000 from the Lehner site was refluted and the fracture or 8000 BP many smaller tributaries, particularly edges ground before reuse (Haury, et al., 1959, in the Southwest, entered a cycle of gully cutting Fig. 12f). Exotic materials were utilized for some and filling every 2000 years or so; the cycles tend­ points, and clear quartz crystals seem to have been ed to be in phase (within the margins of error for a successfully met challenge to the knapper at the radiocarbon dating) over large areas (Haynes, Lehner and Simon sites, and in Virginia. 1968). Because of this alluvial history many Clovis The use of Clovis points, hafted in short fore­ sites still lie buried beneath modern floodplains, shafts as knives, would seem logical but has not such as that of the Shenandoah River at the been conclusively demonstrated. Edge-wear studies Thunderbird site (Gardner, 1977).
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