To date, 81 stemmed and barbed preceramic (Archaic) points (8000–900 B.C.) have been identified in Belize. Fifty-four are Lowe points; 21 are Sawmill points. Four more are provisionally classified as Allspice and two as Ya’axche’ points. These stemmed bifaces are frequently beveled on alternate-opposite edges and demonstrate variable degrees of resharpening and reworking, which affects blade shape and tool size. Numerous functions have been attributed to these artifacts; specifically, they have been called spear points, dart points, harpoons, and knives. Metric data from these bifaces, limited macrowear and microwear analyses, and design features, such as barbs and alternate-opposite edge beveling, have been used to interpret likely tool functions. Results suggest that Lowe points were affixed to throwing/thrusting spears and also served as knives, whereas the Sawmill points were used as spear-thrower dart points and as knives. New dating information suggests that alternate-opposite edge beveling and consequently beveled bifaces may be much older than 2500–1900 B.C., which is the date currently assigned to these specimens.

Initial Spanish colonization of the Central Andes and efforts to transform indigenous society were highly dependent on local social and geographic conditions. In the Colca Valley of southern Peru, Franciscan friars established a series of doctrinas (settlements for the conversion and doctrinal instruction of the indigenous population) at former Inka imperial outposts during the mid-1540s. The inhabitants of one of these doctrinas—the site today known as Malata (ca. A.D. 1545–1573)— were subject to one of the earliest mendicant evangelical campaigns in the Central Andean highlands. In addition to religious indoctrination and significant spatial reconfiguration of the village, Spaniards attempted to alter systems of domestic production related to the rearing and consumption of animals. They also imposed new tribute demands. Despite considerable transformations of the architecture and attendant changes in daily life at Malata, zooarchaeological analysis of faunal remains from a variety of contexts provides no indication of the introduction of Eurasian animals to Malata nor the alteration of either indigenous husbandry practices or the consumption of food animals. Ceramic iconography and the abundance of weaving tools suggest that Spaniards built on the local system of camelid husbandry to extract textiles and metallurgical goods as tribute during the first generation of colonial occupation.

Increasingly, archaeological research in Amazonia is revealing complex precolonial occupation in areas around riverine confluences. In 2014, the first site-based archaeological investigations were undertaken in Gurupá, Pará, Brazil, a municipality that spans the region of the Xingu-Amazon confluence. The Portuguese controlled access to Amazonia from 1623 onward through a network of settlements organized around Gurupá. Results from extensive excavations of terra preta sites, landscape archaeology, and analysis of ceramic evidence suggest that this was also a precolonial crossroads. Carrazedo, once a booming historical town (Arapijó), sits atop a significantly larger terra preta site. Excavations in historical and precolonial sectors of Carrazedo found well-preserved remains, including a precolonial house terrace complex. The extent of terra preta and earthworks at Carrazedo indicate that the precolonial occupation was more intensive than the colonial-historical period occupation. Regional survey revealed colonial-historical period sites consistently overlying expansive precolonial sites, the density and extent of which suggest a major precolonial center at the Xingu-Amazon confluence. Overall, ecological and landscape modifications appear to have been more intense in the precolonial past than during later periods. Short- and long-distance settlement networks also differed during the two periods. This as-of-yet understudied region promises to shed new light on deep-time human-environment interactions and spatial organization in the humid tropics of Amazonia.

Images on Late Preclassic (300 B.C.–A.D. 250) monuments from Izapa, Chiapas, Mexico, featuring canoe scenes, maize deities, and water gods, have long been interpreted as representing mythic passages. While significant, such interpretations neglect other aspects of the scenes, including environmental and socioeconomic concerns that revolve around rain, subsistence, and water transport. By contextualizing these images and linking them to recent archaeological investigations that illuminate aspects of the Late Preclassic economy of Izapa, I argue that the scenes strategically situated economic activities— maize agriculture, the trade and transport of goods in canoes, even salt production—within a mythic framework. The images constitute an artistic program that entwined mythic tales, industries of salt production, and traditions of water navigation and that phrased them as part of a system of social order during a period of incipient state formation.

We present new regional settlement pattern data from the eastern Soconusco region, Chiapas, Mexico, including a detailed reconstruction of the first millennium A.D. occupation of the site of Izapa. Results from an initial campaign of light detection and ranging (lidar) data acquisition and analysis of systematically collected surface remains document the full extent of the Classic-period occupation of Izapa. These lidar and pedestrian survey data also illustrate how people were distributed across the landscape from 100 B.C. to A.D. 1000 (Hato to Remanso phases). Survey results indicate significant population increase during the Terminal Formative (A.D. 100–300) and initial Early Classic (A.D. 300–400) periods, followed by a virtual abandonment of both piedmont and low-hills survey zones from A.D. 400 to A.D. 700. The population increased in both survey zones during the Late and Terminal Classic periods (A.D. 700–1000) coinciding with the presence of a large regional center in the low-hills zone and 46 secondary centers recorded within the 400-km2 area covered by the lidar survey. These secondary centers consist of numerous small mounds around circular or square plazas. Together, the results of the lidar study and systematic pedestrian survey offer the first glimpse of population dynamics and political organization in the area around Izapa during the first millennium A.D.

Entre los años 2007 y 2010 se desarrollaron reconocimientos pedestres acompañados de sondeos y pequeñas excavaciones en el Archipiélago de Las Perlas, Panamá. Las investigaciones más intensivas se realizaron en Isla Pedro González. Esta breve síntesis preliminar de la cronología de la ocupación prehispánica de esta isla se basa en dataciones radiocarbónicas. También incluye comparaciones tipológicas y cronométricas con dos regiones culturales: Gran Coclé hacia el Oeste, donde floreció una tradición de policromía particular entre 2500 y 450 cal a.P. y el área que se constituyó como la región cultural de Gran Darién a partir de 1200–800 cal a.P. El yacimiento más antiguo en Pedro González es precerámico (6200–5600 cal a.P.). Después de un largo hiato, esta isla fue colonizada por grupos alfareros para el 2350 cal a.P. Se plantea la existencia de cinco fases cerámicas basadas en los rangos a 2σ de las dataciones radiocarbónicas, las que se traslapan entre sí. Entre 2350 y 1450 a.P. la alfarería isleña refleja la trayectoria diacrónica de la cerámica en Gran Coclé con características propias que se extienden a zonas de tierra firme hacia el Norte, así como a islas cercanas a la costa como Taboguilla. Sin embargo, entre 1450 y 1200 cal a.P., las similitudes tipológicas con la Península de Azuero, Coclé y Playa Venado (en la costa Sur del área canalera) son tan marcadas que se asume que este área comprendió brevemente una misma zona de interacción cuya homogeneidad cultural pudo estar vinculada al comercio marítimo estimulado por la importancia de las conchas de arrecife, como Spondylus. La alfarería cambia abruptamente entre 1200 y 800 cal a.P., aludiendo a una nueva población o a un reajuste en las conexiones con tierra firme con un énfasis en el litoral Este de la Bahía de Panamá y el noroeste de Colombia.

Los estudios sobre macro y microrrestos botánicos en contextos de cazadores-recolectoresde Pampa y Norpatagonia se han incrementado, al igual que el conocimiento del impacto de las plantas en la dieta de estas poblaciones. Con este propósito se han integrado diversos indicadores y técnicas analíticas. En algunos casos se registra el uso simultáneo de plantas silvestres y cultígenos. El marco temporal de uso de plantas domesticadas en la macroregión se ha desarrollado hasta ca. 2000 años a.P., mientras que la escala espacial se extiende entre el área cordillerana hasta las provincias fitogeográficas del monte y el espinal (34º a 40º S y 72º a 63º O aproximadamente). En este trabajo se presentan datos novedosos referidos a la presencia simultánea de maíz (Zea mays), cereales y leguminosas silvestres (Prosopis sp. y Poaceae) en contextos de cazadores-recolectores de la Pampa Occidental Argentina. Estos datos provienen del análisis de microfósiles en diferentes soportes: cerámica, artefactos de molienda y dientes humanos. Estos resultados permitieron conocer el rol que tuvieron las plantas para estas sociedades. A su vez, los datos fueron integrados, con investigaciones que focalizan el estudio de restos vegetales, tanto silvestres como domesticados, en una escala macroregional.

In the Andean region, spindle whorls have been the subject of archaeological analysis less often than other artifact classes, such as pottery. Nevertheless, spindle whorls may have much more to contribute to archaeological interpretations of production, status, and exchange patterns than previously acknowledged. The case study presented here examines the spindle whorl collection from the site of El Purgatorio, Peru, the capital city of the Casma polity (ca. A.D. 700–1400). Spindle whorls were not only expertly crafted utilitarian tools for spinning yarn, but also items of personal adornment, symbols of wealth or status, and possible indicators of intra-polity exchange patterns. The analysis of spindle whorls in regard to form and function provides insight into Casma social and economic organization. The spindle whorls discovered at El Purgatorio also reflect varying degrees of standardization and technical knowledge, suggesting that at least some may have been manufactured by specialists in metallurgical and ceramic workshops.