Archaeologists have used isotope analysis (δ13C, δ15N) of the collagen of human bones, as well as knowledge of available nutrients, to infer that the diet of the ancient Maya was drawn from the resources of the Maya forest landscape. The interpretations have focused on plant carbohydrates from maize and protein dominated by white-tail deer. The δ15N values of bone collagen suggest that most of the protein requirements of the Maya could have been satisfied with a mixture of wild animal flesh and wild and cultivated plants including beans. Chaya, Cnidoscolus aconitifolius, domesticated before the Spanish conquest, has a high-protein content and the potential to have been a significant contributor to the ancient Maya diet. Chaya is easily propagated, is grown in home gardens by the Maya today, and is a significant part of the local traditional diet. Chaya's stable isotopic composition of carbon (δ13C) resembles that of other terrestrial plants, but its values for nitrogen (δ15N) are significantly higher. Consumption of chaya would result in slightly higher δ15N values in humans than expected from the consumption of terrestrial animals. Thus, chaya is situated well as a component of the complex, diverse, and varied diets of ancient Mesoamericans.

Archaeology is increasingly employing remote sensing techniques such as airborne lidar (light detection and ranging), terrestrial laser scanning (TLS), and photogrammetry in tropical environments where dense vegetation hinders to a great extent the ability to understand the scope of ancient landscape modification. These technologies have enabled archaeologists to develop sophisticated analyses that overturn traditional misconceptions of tropical ecologies and the human groups that have inhabited them in the long term. This article presents new data on the Sierra Nevada de Santa Marta in northern Colombia that reveals the extent to which its ancient societies transformed this landscape, which is frequently thought of as pristine. By recursively integrating remote sensing and archaeology, this study contributes to interdisciplinary scholarship examining ancient land use and occupation in densely forested contexts.

Estudios anteriores basados en indicadores osteológicos comprobaron la existencia de un alto impacto ambiental afectando el crecimiento y desarrollo normal de los habitantes de Las Pirguas (Salta), un grupo del período agroalfarero del noroeste argentino (aproximadamente 600 d.C.), por la acción de factores nutricionales y socioculturales. Puesto que tales condiciones de vida tienen que haber comprometido además la estabilidad del desarrollo de los individuos, es apropiada su evaluación mediante el análisis de la repetibilidad (r) de mediciones bilaterales del cráneo y de su complemento (1 - r) la varianza ambiental especial. Se empleó una muestra de 60 individuos y la observación de 21 variables bilaterales del cráneo, habiéndose controlado el error intraobservador. Los resultados indican la existencia de diferencias bilaterales significativas a favor del lado derecho en las dimensiones: NA-FMO, PT-FMT, BRE-AS y PO-BRE, mientras que las restantes variables presentan promedios semejantes. Los individuos adultos poseen una repetibilidad media (.744 ± .025), menor en un 19.3 por ciento a la de los infantiles (.922 ± .013), y comparativamente más baja con respecto a otras poblaciones del Área Andina Centro Meridional. Estos resultados confirman el perfil de vida marginal y de extremas exigencias ambientales bajo las cuales vivió esta población.

Sealings recovered from the Omo M10 temple, a provincial center of the Andean Tiwanaku state (AD 500–1100), and from the Muru Ut Pata neighborhood of the Tiwanaku capital, as well as a signet ring from the Akapana East complex of Tiwanaku's highland capital, shed light on the hitherto undocumented use of seals and sealings in Central Andean complex society. The identification of Tiwanaku sealings related to the signet ring seal has implications for understanding the transmission of identity, authority, and authenticity over time and distance in early Andean states.

In this paper we discuss the use of mineral pigments recovered in stratigraphic position from three excavated archaeological sites (Traful Lake area, Argentina) with the aim of providing information on selection and frequency of use of these raw materials. In this region, human occupation has been recorded since 4000 BP. In order to identify the chromophoric minerals, we applied wavelength dispersive X-ray fluorescence spectrometry, Raman spectroscopy, and X-ray diffraction techniques. Green, red, yellow ochre, and white pigments dated between 3490 and 590 BP were analyzed. The results show that different analytical techniques provide complementary information in order to identify the pigments. Green, red, and yellow samples are related to iron-based compounds. The green pigments can be associated with celadonite and the others with hematite. White samples revealed the presence of hydroxyapatite. Black dots, identified as carbon, were observed in several samples. Red pigments are always predominant, and their relative abundance increases in recent strata. Results are discussed in light of the context and previous reports of chroniclers.

Los índices de utilidad económica son aplicados en análisis zooarqueológicos desde hace más de cuatro décadas, lo que llevó al desarrollo de indicadores exclusivos para especies de mamíferos marinos. En Sudamérica se explotaron dos tipos de pinnípedos: Otaria flavescens y Arctocephalus australis; sin embargo, sólo para el primero fue derivado dicho índice. A partir de un individuo recolectado en el canal Beagle (Tierra del Fuego, Argentina) se presenta un índice de utilidad económica para A. australis basado en la medición de peso de carne para cada elemento o porción del esqueleto. Los resultados generales indican que O. flavescens presenta mayor desarrollo muscular en el sector de las costillas, mientras que los A. australis lo presentan en las vértebras cervicales. La aplicación del índice en conjuntos zooarqueológicos del canal Beagle con predominio de especímenes de A. australis ha mostrado un ajuste mejor respecto de las tendencias observadas previamente utilizando los valores generados para O. flavescens: (1) en el Segundo Componente de Imiwaia I (Holoceno medio) fue posible reconocer un perfil anatómico compatible con la selección de porciones de bajo valor económico; y (2) en Ajej I (Holoceno tardío) se identificó una tendencia similar, no identificada anteriormente.

We thank our colleague for his comment, address concerns raised, and encourage future collaborative research to answer important questions about the Middle Preclassic at Cahal Pech.

Patolli petroglyphs were recently identified at two archaeological sites in northeast Honduras. Patolli is a Mesoamerican game of chance described in ethnohistoric sources and documented in archaeological contexts in many parts of Mesoamerica. Thus, it has been characterized as an important element of Mesoamerican culture. The existence of patolli boards at Plan Grande, on the island of Guanaja, and at Sawacito in northeast Honduras shows that the practice of the game extended farther to the east than earlier presumed and indicates long-distance interaction. Given the considerable number of five patolli petroglyphs at Plan Grande, I characterize the site as an important center.

Archaeologists working in the Late Formative Lake Titicaca Basin have identified several “transit communities”—villages that benefited from long-distance exchange. Some scholars suggest that such places played a key role in the development of the Middle Horizon city of Tiwanaku. In this article, we explore the movement of plant goods into transit communities during both the Late Formative (300 BC–AD 500) and Middle Horizon (AD 600–1100) periods. After presenting the current understanding of transit communities, we summarize previous work on both local plants, including tubers and quinoa, and the presence of maize. We then report on a recent microbotanical study of ceramics recovered from excavations at Late Formative Challapata (in the eastern basin) and a burial from the Middle Horizon occupation at Chiripa (in the southern basin). For the first time we identify lowland tubers in the Lake Titicaca Basin, including yuca, sweet potato, and arrowroot. These findings reveal the critical importance of microbotanical analyses for tracing regional connections and foodways in emergent Middle Horizon worlds, as well as the need for more complex interpretive models for things/plants-in-motion.

Este trabajo está centrado en el estudio de una de las primeras formas de manejo ganadero de la época colonial en la Banda Oriental. Aborda específicamente el análisis de un conjunto de corrales de palmas ubicados en el sureste del Uruguay, en la frontera con Brasil. Está basado en un enfoque interdisciplinar en el que se combinó el trabajo con la población local, el análisis historiográfico, la prospección remota y sobre el terreno, el análisis morfométrico de la totalidad de los corrales y las palmas que los componen, y el análisis fisicoquímico del sedimento (análisis de fosfatos y partículas biosilíceas). El artículo propone que estas estructuras son uno de los cerramientos ganaderos más antiguos (siglos diecisiete y dieciocho) de la Banda Oriental, vinculados a formas indígenas de manejo vegetal y animal que se fueron reajustando durante la colonización europea de este sector fronterizo del Cono Sur de América.

Use of Patagonia's forests by hunter-gatherers remains relatively poorly understood. Regional archaeological records indicate initial forest colonization during the middle Holocene, infrequent use until late prehistory, and, even then, fairly sparse occupation, likely in conjunction with use of the adjacent steppe. Recent excavations at Río Ibáñez-6 West in Aysén, Chile, provide a new perspective for understanding the prehistoric use of Patagonian forests, particularly regarding timing of the initial occupation and the potential for development of a forest-specific adaptation. We provide chronological, lithic, archaeofaunal, and macrobotanical data that show use of the Ibáñez River valley at least a millennium earlier than previously documented. These data indicate increased dietary breadth in late prehistory, supporting the established hypothesis that the valley became a closed system at that time. From our data we develop hypotheses regarding prehistoric forest use in Aysén that have implications for the broader understanding of the suitability of the forest for prehistoric human foragers.

This article examines the urban layout and development of the ancient city of Angamuco (AD 250–1530)—a populated urban center located within the core area of the Purépecha Empire in Michoacán, Mexico—through the lens of its complex road network. Image and network analysis of lidar datasets revealed more than 3,000 roads distributed throughout the site, identified the main patterns of road arrangement, and documented variable accessibility within the city. After presenting a summary of these results, I propose that road networks are fundamental components of urban centers that can help reveal social configurations, local interactions, and models of governance. The study of the road network at the site of Angamuco suggests that this city developed organically without the strong influence of political hierarchy a few centuries prior to the formation of the Purépecha Empire. Angamuco inhabitants organized and negotiated space and settlement within their immediate community and had access to virtually all areas of the city.

This article presents a high-resolution chronology of Wairajirca pottery in the Huánuco basin, which has been identified as a frontier region between the Andean highlands and the Amazonian rain forests: its pottery is known for having mixed features from both areas. However, the lack of fine-grained pottery and radiocarbon datasets has handicapped comparative studies’ attempts to track in detail its early development process. Our new high-resolution chronology of Wairajirca pottery is based on stratigraphic excavation data, a detailed ceramic typology, and a Bayesian analysis of the radiocarbon date from the Jancao site. The five-staged ceramic sequence from the late eighteenth to late twelfth century cal BC displays specific features of this development, including radical changes in vessel type over several centuries and connections with other pottery traditions. The earliest phase shows close relation with highlands traditions, whereas the influence of tropical rain forest patterns intensified in later phases alongside the continuation of local pottery traditions. This indicates that frontier dynamics based on fluid interactions across different ecological zones and regional sociopolitical movements played a crucial role in this long-term social process.

In embedded economies where multiple modes of production and exchange exist, artifact distributions in households alone do not reflect the strength of specific modes. We use a diachronic perspective tied to changes in political economies and artifact class densities standardized by excavation volume at the Maya site of Actuncan, Belize, to elucidate changes in the strength of individual production and exchange modes in the Preclassic and Classic periods. We focus on ground stone densities as a measure of grinding intensity across elite and common households. Data indicate that common households always ground more maize than elites, but intensity peaked in the Late Classic when tax and tribute demands and market exchanges were greatest. In the Terminal Classic, common household grinding intensity decreased by half as tribute burdens diminished, illustrating the impact of political hierarchies on household economies.