Se presentan los resultados de las investigaciones llevadas a cabo en dos sitios del Holoceno medio ubicados en la cuenca superior del Río Loa (norte de Chile), conocidos como Alero Huiculunche y Corte de La Damiana. Los trabajos desarrollados incluyeron excavaciones estratigráficas, obtención y análisis de dataciones radiocarbónicas y análisis del material lítico y arqueofaunístico recuperado. Las dataciones obtenidas hicieron posible desarrollar un modelo cronológico bayesiano, el que permite definir los límites temporales más probables de ocupación para cada asentamiento y para sus unidades estratigráficas. La ocupación de Alero Huiculunche se muestra más temprana que en Corte de La Damiana, si bien el modelo revela alta probabilidad de una coexistencia breve entre las poblaciones de ambos sitios. Los análisis líticos y arqueofaunísticos sugieren que se trata en ambos casos de campamentos base de ocupación reiterada pero posiblemente intermitente, con ocupaciones menos intensas y/o recurrentes en Alero Huiculunche en relación con Corte de La Damiana. El conjunto de evidencias apunta a la existencia de un proceso de intensificación económica creciente entre aproximadamente 8000 y 5500 cal aP, el cual decanta en un sistema de asentamiento de mayor estabilidad y densidad ocupacional, en especial a partir de 6500 cal aP.

This article presents differences and similarities in dietary practices of fisher-gatherer groups excavated from two sambaquis (shell-mound archaeological sites) in Saquarema, Rio de Janeiro state, Brazil. We analyzed the buccal apparatus of 35 individuals excavated from Sambaqui da Beirada, dated from 5437 to 3440 years cal BP, and Sambaqui do Moa, dated from 4770 to 3199 years cal BP. Our oral health analysis of 852 alveoli and 704 teeth assessed the frequency and degree of teeth wear and the prevalence and frequency of caries, linear enamel hypoplasia, calculus, periapical cavities, and antemortem teeth loss. We applied the chi-square test and Fisher exact test to test statistical significance. Severe tooth wear, the absence of caries, a high frequency and prevalence of dental calculus, and a low prevalence of linear enamel hypoplasia were found in both sites, although periapical cavities and antemortem teeth loss indexes varied greatly. Despite a superficial homogeneity, the results point to variation in the physiopathological processes that occurred at both sites, including differences related to age and sex. These oral health-related results, together with other archaeological data from both sambaquis, showcase the expected cultural differences stemming from dietary practices.

This article presents an example of ceramic circulation and exchange networks in the southern Andean region during the first centuries AD, derived from the study of the production, circulation, and consumption of the pottery assemblages found in the villages of Cardonal and Bordo Marcial, located in the Cajón Valley in Catamarca, Argentina. Our analysis of the technical, morphological, and design aspects of the ceramics suggested six morphological groups using three representation techniques and 16 paste recipes; we also found that locally manufactured vessels were used together with ceramics of nonlocal origin in similar domestic contexts. In addition, the foreign ceramic materials suggest that there were networks of interaction between Cardonal and Bordo Marcial and other regions, such as the southern Puna, the Hualfín Valley, the Rosario-Lerma Basin, and the San Francisco Valley in northwestern Argentina.

Physical violence and social conflict have been widely studied in the ancient societies of the Andes. However, studies about violence are scarce for the Formative period of northern Chile (1000 BC–AD 900). Evidence from these investigations is generally interpreted as interpersonal violence, whose protagonists are mostly men. Here, we present the case of an adult female recovered from the Tarapacá 40 cemetery (Tarapacá region, Chile) displaying lesions suggestive of trauma. We reconstruct her life and death in the context of this era's social and political conditions. Results of our bioanthropological characterization, cranial trauma analysis, carbon and nitrogen isotope analysis, and recording of the funerary offerings suggest she was a local member of the Formative community buried in the Tarapacá 40 cemetery and that she suffered intentional lethal lesions. Her death is unusual because there are no previous bioarchaeological records of lethal violence against women in the Tarapacá region. The osteobiography of this woman reflects a context characterized by an increase in inequality and social complexity, whereby physical violence could be used as a mechanism of internal regulation and exercise of power during the Formative period.

Los modos de vida marítimos que caracterizaron a los archipiélagos occidentales de Patagonia comenzaron su desarrollo a mediados del Holoceno medio. El registro arqueológico sugiere posibles orígenes tanto en el extremo sur como en el extremo norte del territorio insular. La propuesta de un núcleo ecotonal septentrional de maritización se fundamentó en el hallazgo de sitios con tempranas ocupaciones de especialización litoral, entre los que destacó el conchal de Puente Quilo-1. Este artículo presenta resultados de nuevas excavaciones realizadas con el objeto de precisar su cronología, historia ocupacional y relevancia en la comprensión del proceso de maritización y colonización de los archipiélagos. A través de su integración con investigaciones previas en el sitio, los nuevos datos muestran una secuencia de reocupación estrechamente ligada a cambios en el paisaje producto de la variación en los niveles marinos, y caracterizan un campamento con diversidad funcional y diferenciación de áreas de actividad, inserto en un contexto de expansión regional de grupos cazadores-recolectores marinos. Los atributos culturales y su cronología permiten robustecer la hipótesis de un núcleo de maritización en el norte de la franja archipelágica.

Most population estimates for Maya sites are for the Late Classic period, a time of peak population in the Central Maya Lowlands. At Naachtun, Guatemala, a major city during the Early Classic that continued into the Late Classic period, researchers recently carried out an ambitious program of test pitting in residential areas; its aim was to model the growth of residential units during the entire Classic period and so better contextualize the rise of Classic Maya dynasties and the scale of their economic and political power. This article presents an improvement to the existing method for estimating population for periods preceding the population apex (in this case, the Early Classic period): it not only estimates the occupancy rate of residential units occupied pre-apex but also assesses their size, using a typology I developed based on their morphology and pattern of transformation.

This article charts the collection history of the only surviving precolumbian cotton reliquary (cemí) from the Dominican Republic, establishing its provenance from the mid-nineteenth century through a previously unpublished manuscript written by the collector, Rodolfo Domingo Cambiaso Sosa, and using archival documents in Italy. The cemí, found in a cave in the southwest of the country near the town of Petitrou (Enriquillo), was purchased in 1882 by Admiral Giuseppe Giovanni Battista Cambiaso, one of the founders of the Dominican Navy. It emerged in international publications commemorating the quadricentennial of the Spanish–Indigenous encounter in 1892 and shortly thereafter was sent to Genoa, Italy. It entered the collections of Turin's Royal Museum of Antiquities in 1928 before being passed to the newly established Museum of Anthropology and Ethnography. It was rediscovered by Dominican scholars in the 1970s and has inspired numerous investigations since, including renewed collaborative links between the Dominican Republic and Italy.

Complex human–environmental processes form identifiable, lasting features on the landscape that can illuminate past human behavior and human–environment interactions. We examine the anthropogenic landscape of the ancient port of Macurany, located along the middle Amazon River in Parintins, Brazil, and identify four classes of anthropogenic landscape features at the site: wharfs, middens, terra preta (dark or black earths), and cultural forests. Middens, terra preta, and cultural forests have been found at archaeological sites in regions surrounding Macurany, but wharfs have not previously been reported in Amazonian contexts predating European contact. Taken together, these features are clearly the result of anthropogenesis and represent a range of subsistence, settlement, and infrastructure-building activities pointing to an ancient society that was actively engaged in modifying the surrounding landscape for purposes beyond settlement and subsistence. Evidence for a permanent, extensive, continuously settled society practicing intensive landscape engineering in this region of Amazonia reinforces findings of dense habitation, infrastructure, and early urbanization in Amazonia prior to European contact. This research helps expand our understanding of human–environment interactions, landscape formation processes, and settlement organization in ancient Amazonia.

The increasing use of massively parallel sequencing in the study of current and ancient human populations has enabled new approaches to bioanthropological and archaeological issues; however, its application to archaeological samples requires the use of technologies that are not easily accessible outside US and European research centers. To obtain an ancient mitogenome in Argentina, several institutions collaborated to apply massively parallel sequencing and bioinformatic methodologies on an enriched ancient DNA library of an individual from the Beagle Channel (dated 1504 ± 46 years BP), a region of particular interest for this line of inquiry. Phylogenetic reconstruction showed a close relationship with a Yamana from Navarino Island and an individual from Hoste Island (Chilean Antarctic Province): the three shared an ancestor who lived between 203 and 4,439 years ago. These three have mutations reported only for current and ancient individuals from the Beagle Channel, and their relationship with the rest of the D1g sub-haplogroups is unclear. The results obtained here are consistent with the reduction of mobility in the Fuegian archipelago around 4500 years BP that has been proposed based on archaeological evidence.

This article evaluates the level of interpersonal violence among human groups that inhabited northern Patagonia and southern Pampa (Argentina) during the Middle and Late Holocene, especially before contact with Europeans. We analyzed a particular type of trauma—blunt force trauma—in skull samples from several archaeological localities and compared our outcomes with those of a previous experimental work. The results agree with what is expected for small-scale societies within the regional historical and archaeological framework. The recorded percentages show a diachronic increase toward higher frequencies of this injury among males than among females and subadults, but the differences are not statistically significant. Generally, the levels of violence remained relatively constant during the period studied. Most of the injuries reflect low levels of damage, which allows us to hypothesize that the objects causing the injuries would be elements of everyday life. A smaller proportion show significant bone alteration that could be associated with weapons manufactured to exert violence or hunt animals.

Andean prehispanic textiles are renown for being complex masterpieces made with labor-intensive techniques and high-quality raw materials. Nevertheless, the vast majority of textiles, those used by the population at large, were plain, simple, and without any decoration. We study a sample composed of the most common textiles used by people living at Cerro de Oro in the Cañete Valley, Peru. Our analysis focuses on fiber selection, yarn thickness, and the presence of errors throughout the process of weaving. We discuss relevant aspects of the social process of textile production, such as the role played by plain-weave textiles in different contexts, their use in different types of garments, and the varied ways community members, with particular skill levels, participated in clothing the living and the dead at Cerro de Oro.

Este trabajo se focaliza en el análisis espacial intrasitio del material lítico procedente de un montículo de tierra del sitio arqueológico Pago Lindo (Departamento de Tacuarembó, Uruguay). Se realizaron análisis tecnológicos y distribucionales (vecino más cercano, K de Ripley y modelos kernel) que permitieron caracterizar distintas fases de ocupación y uso del espacio entre 3021 ± 32 y 690 ± 35 años 14C aP. Se reconoció una tecnología predominantemente expeditiva en la que no se observaron cambios significativos a través del tiempo. Los resultados de los análisis distribucionales muestran patrones heterogéneos que responden al uso diferencial del espacio en la estructura monticular. Los patrones agrupados, observados principalmente en microlascas, permitieron identificar sectores donde se localizaron espacios domésticos cuya ocupación y gestión de residuos contribuyó al crecimiento del montículo. También se reconocieron sectores donde las agrupaciones del material lítico tienden principalmente a la aleatoriedad, y que corresponden a episodios constructivos planificados. Esto es congruente con el modelo de crecimiento espaciotemporal discontinuo de las estructuras monticulares —basado en la alternancia de momentos de abandono y momentos de uso— pero también con episodios constructivos intencionales.

En las canteras-taller los individuos y grupos llevan a cabo diversas actividades vinculadas al aprovisionamiento de recursos líticos. El objetivo de este trabajo es identificar cómo las acciones tecnológicas y prácticas sociales configuraron un paisaje de canteras-taller en Antofagasta de la Sierra (provincia de Catamarca, Argentina). En este sentido, interesa conocer cómo las personas interactuaron con su entorno físico y la variabilidad de actividades que se realizaron en el interior de un paisaje de aprovisionamiento. Para ello se hicieron prospecciones sistemáticas, muestreos, excavaciones y un análisis tecno-tipológico de conjuntos líticos. A partir de este estudio se identificaron loci de actividades con un registro lítico con atributos tecno-tipológicos distintos. Entre los contextos arqueológicos documentados se encuentran campamentos de actividades múltiples, o AET, talleres de reducción de grandes nódulos, o ADT, parapetos (estructuras de muro simple con forma de U), acumulaciones de rocas y reparos rocosos. Cada una de estas áreas de actividades se emplaza en el interior de una zona de canteras-taller y conforma un paisaje social que fue utilizado persistentemente. Precisamente, a partir de esta investigación se logró comprender cómo las personas configuraron un paisaje de tareas a través de sus prácticas sociales y sus modos de habitar un lugar.

Settlement scaling theory predicts that higher site densities lead to increased social interactions that, in turn, boost productivity. The scaling relationship between population and land area holds for several ancient societies, but as demonstrated by the sample of 48 sites in this study, it does not hold for the Northern Maya Lowlands. Removing smaller sites from the sample brings the results closer to scaling expectations. We argue that applications of scaling theory benefit by considering social interaction as a product not only of proximity but also of daily life and spatial layouts.

Se presentan los resultados de fluorescencia de rayos-X realizados a 12 artefactos provenientes de contextos funerarios Chinchorro, Arica, norte de Chile, focalizándose la discusión en el manganeso (Mn). La muestra con mayor concentración de Mn fue analizada con espectrometría Raman, para avanzar en la identificación estructural del cromóforo negro correspondiente. Todos los artefactos dieron positivo para la presencia de Mn con un rango de 1,11%-63,66%, considerándose antrópico sobre 2% (83,33% del total) y el pigmento analizado fue identificado como criptomelano y goetita.