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Excavations at the site of Wadi Mataha, located in Southern Jordan, revealed stratified Epipalaeolithic occupations containing Geometric Kebaran, Early Natufian, and Late Natufian deposits. Although the Middle Epipalaeolithic occupation at the site is small, it contains a human burial in a face-down burial position, along with groundstone artifacts, suggesting a unique burial practice was enacted at the site. This paper explores the Geometric Kebaran component of Wadi Mataha, focusing on the lithic assemblage and the recovered human burial. Despite the small size of the assemblage, techno-typological and functional analysis of the lithics and the presence of a human burial suggests that small, limited term occupations were still considered important and symbolically charged places in the landscape. Wadi Mataha represents one of the southernmost extents of Geometric Kebaran occupations in Jordan, making it an interesting case study to understand regional mobility and movement during the Middle Epipalaeolithic.

Starch grain analysis has become a routine investigative approach to studies of economic plant use during prehistory. As interest in ancient starch has rapidly escalated, however, the various ways ground stone tools (and adhering residues) have been curated into museum collections and the efficacy of extraction have been largely undocumented. The study presented here examined three treatment scenarios reflecting curation practices and extraction methods that could affect starch grain recovery. Treatment 1 is where adhering residues were washed and conserved at the time of excavation and no other extraction technique was performed. Treatment 2 involves stones that were cleaned during curation and residual sediments and starch grains were later extracted with a brush. Treatment 3 involves stones cleaned during curation and residual sediments and grains were later extracted by sonicator. Starch grains from all three treatments were isolated using a heavy liquid separation method. Treatment 1 produced the highest counts of starch grains overall. Treatments 2 and 3 also yielded grains from cleaned stones, but the counts were much lower. Given that all treatment scenarios were effective to varying degrees, it is clear that cleaning, passage of time and storage do not negate museum artifacts as sources of starch grains for dietary analysis.

The origins of maize farming strategies broadly labeled Basketmaker II have long intrigued archaeologists. Early twentieth century researchers excavating sheltered sites in the Four Corners region of the American Southwest found material culture associated with aceramic farmers that included sophisticated textiles as well as elaborate and exotic mortuary offerings in a region sparsely occupied by foragers. Although early researchers speculated that the San Pedro phase of what is now known as the Early Agricultural Period played a significant role in the emergence of Basketmaker II, data bearing on the topic were scarce for decades. Recent, well-documented excavations in the southern Tucson Basin in advance of urban development have strengthened the argument that pulses of influence, likely including population movement, occurred during this period. Here, we explore the relationship between the Late Archaic, Early Agricultural Period and Basketmaker II maize-dependent economies in search of Basketmaker origins. A complex and dynamic picture emerges calling into question both migration and diffusion arguments for the appearance of Four Corners Basketmaker II.

The Bayesian linear mixing model SISUS is used to reconstruct reliance on maize and intake of animal protein from the stable carbon (δ13C) and nitrogen (δ15N) isotope values of 149 directly dated Basketmaker II burials. Maize is the primary dietary staple. δ13C values are also enriched by intake of yucca and wild C4 plant foods but these resources are of minor importance in sampled diets. Animal protein intake is low and cottontail rabbits make the greatest contribution to female diets. Adolescent diets are indistinguishable from the diets of adult females and both groups are less reliant on artiodactyls than males. The δ13C and δ18O values of bone hydroxyapatite distinguish nursing infants and oxygen isotope values identify outsider adults relative to those local to the region where their deaths occurred. Most Utah Basketmaker II burials are contemporary with Black Mesa Lolomai phase occupations, postdating the Marsh Pass, AZ, White Dog phase. All burials in both studies were recovered from sheltered rather than open sites and reliance on maize does not increase over the temporal span of the Utah study, covering the two sigma range 415 BC–AD 322.

Our ongoing investigation of early maize farming in the American Southwest has entailed stable isotope analysis and accelerator radiocarbon dating of Basketmaker II remains from sites in the Four Corners region. Here we report radiocarbon dates on a large mortuary assemblage excavated by Richard Wetherill in 1893 from a burial cave in southeastern Utah. It has long been thought that all individuals interred in Cave 7 were massacred in a single violent attack given embedded projectiles and evidence for blunt force trauma. However, accelerator radiocarbon dates on purified bone collagen (n ¼ 96) do not lend strong support to this argument, even among the subset of individuals with clear evidence for violent injuries. Moreover, nearly 80% of Cave 7 burials examined in the study show no evidence of perimortem trauma and no adult females or subadults under the age of 12 appear to have suffered violent deaths. Rather than an anomalous single-event massacre, the Cave 7 radiocarbon dataset suggests that raiding and intragroup, male/male violence was episodic among Basketmaker groups in southeastern Utah. Population densities were relatively high and individuals interred in Cave 7 and elsewhere in the region were heavily dependent on maize agriculture, a prehistoric economic strategy typically characterized by high amplitude fluctuations in productivity. Variability in the array of grave goods accompanying Cave 7 male burials and elsewhere suggests competitive social differentiation likely heightened during periods of resource shortfall leading to intra-group conflict, raiding and perhaps ritualized acts of violence.

Marine shell, turquoise, exotic ceramics, and toolstone, and raw minerals are common in archaeological assemblages generated by the Fremont, small scale farmers and foragers who occupied the eastern Great Basin and Colorado Plateau of western North American between AD 400 and 1300. Although researchers routinely describe such artifacts, little attention been paid to the means whereby these items were acquired or the implications those mechanisms have for understanding Fremont socio-economic patterns and relations. This paper presents the spatial patterning of both local and exotic goods from Fremont occupations and offers a range of social contexts for exchange as well as contrasts with Virgin Anasazi contexts for such goods. A trade fair/festival model is proposed as an important mechanism or context for the distribution of exotics at Fremont sites.

Empirical tests of resource-intensification models argue for diminishing foraging efficiency among hunter–gatherers in California over the past 2000 years (Basgall, 1987,Research in Economic Anthropology9,21–52; Broughton, 1994aJournal of Archaeological Science21,501–514; 1994bJournal of Anthropological Anthropology13, 371–401). The evidence for this long-term trajectory consists of decreases in the abundance of large, high-ranked prey in archaeofaunal assemblages. This paper presents faunal data from Fremont structural sites in the eastern Great Basin and Northern Colorado Plateau as an additional empirical test of resource intensification patterns and compares them to trends in California and the American Southwest. The measure of resource efficiency used is the artiodactyl index (following Broughton, 1994ab), a tool derived from prey choice models of optimal foraging. Faunal data from Fremont structural sites argue that (1) foraging efficiency declined during the Fremont period, and (2) this decline was due to population growth.