The degree and nature of the influence of the Middle Horizon Wari empire (ca. A.D. 540-900) on the culture history of Peru's north coast has been a topic of much heated debate over the past two decades. The arguments have tended to polarize around the issue of whether or not there was a Wari invasion of the north coast. Those arguing against the invasion hypothesis have claimed that there was no direct Wari influence on north coast cultural history. Those arguing in favor of the invasion hypothesis have attributed nearly all changes evident in the archaeological record to the results of a Wari military conquest. An attempt is made here to decouple the issues of Wari influence and Wari invasion. In an analysis of the architecture of the Wari imperial administrative sites and the ciudadela architecture of Chan Chan, capital of the north coastal Chimu empire, some remarkable similarities are seen. The shift from the pre-Middle Horizon Moche (ca. 100 B.C.-A.D. 650) pattern of pyramid-dominated ceremonial centers to the Late Intermediate period (ca. A.D. 900-1476) ciudadela form of the Chimu is seen as a result of conscious imitation of the prestige Wari imperial style. It is argued that this imitation is a likely result regardless of whether or not there was a Wari invasion.

Maguey cultivators in the Basin of Mexico during the Middle and Late Postclassic (A.D. 1150-1521) periods pioneered the more agriculturally marginal parts of the environment, such as the sloping piedmont zone around the alluvial plain. In their land-use strategy, terraced interplantings of maguey and grain formed the house gardens (calmilli) of their villages. These villages were established sometime around the twelfth century, and by the time of Spanish Conquest they covered the piedmont zones of the Teotihuacan Valley, Texcoco region, and similar areas of the Basin of Mexico. Archaeological and ethnographic evidence permit reconstruction of the caloric productivity of this interplanted terrace system, using modern maguey yields. This productivity is compared with the needs of the maguey cultivators by looking at a particular archaeological example, the Aztec period village of Cihuatecpan, in the Teotihuacan Valley.

Este trabajo proporciona datos sobre las recientes excavaciones llevadas a cabo en la estructura de Akapana, Tiwanaku, Bolivia. Esta es la construcción religiosa más masiva y alta del sitio. Después de mencionar algunos datos de las temporadas de campo 1988 y 1989, se describe una serie de restos parciales humanos articulados, ubicados en un ángulo remetido del sector norte de la estructura. Los autores ofrecen una serie de hipótesis alternativas para explicar este patrón, poniendo especial énfasis en la componente ritual.

Ethnographic observations of floor formation in an occupied and an abandoned Achuar jea dwelling structure are combined with contemporary taphonomic studies of swept and trampled surfaces. These studies suggest that refuse accumulation and incorporation are markedly different in food-preparation areas with ash deposits around fixed hearth features when compared to regularly trampled traffic areas of domestic earthen house floors. These points are examined in the horizontal and vertical analysis of highly fragmented bone remains in an Early Formative domestic house floor at the site of Real Alto, in the coastal lowlands of southwestern Ecuador. The food-preparation area of the Structure 1 house floor contained high concentrations of bone specimens characterized by their large size (over 25 mm), broad surface area, low bulk density, and greater total weight, vertically distributed throughout the ash matrix. The traffic area contained bone specimens characterized by their small size (under 25 mm), narrow surface area, high bulk density, and lower total weight, distributed unevenly in vertical profile. The horizontal distribution of fish bone only partially followed the observed pattern, as a proportionately greater amount of large fish bone was located in the traffic area. This analysis demonstrates the potential utility of bone refuse as a sensitive and reliable taphonomic indicator for inferential arguments regarding house-floor deposition.

Although the economic basis of the ancient lowland Maya civilization was principally maize agriculture, throughout their long history the Maya remained proficient fishers, hunters, and gatherers. Research increasingly has suggested early and extensive Maya exploitation of the freshwater molluscan species Pachychilus, called jute by the modern Maya. This report reviews archaeological evidence for use of this stream- and river-dwelling invertebrate and summarizes recent data from the site of Pacbitun, in western Belize. Pachychilus not only was used for dietary purposes, but occasionally was included in Maya ritual deposits. Ecological information on the habitat of Pachychilus is given, as well as a description of its nutritional value and contemporary methods of collecting and processing jute in the modern Maya community of San Antonio (Cayo), Belize. It is concluded that Pachychilus was one minor but widespread element of the ancient Maya subsistence regime.

Although the economic basis of the ancient lowland Maya civilization was principally maize agriculture, throughout their long history the Maya remained proficient fishers, hunters, and gatherers. Research increasingly has suggested early and extensive Maya exploitation of the freshwater molluscan species Pachychilus, called jute by the modern Maya. This report reviews archaeological evidence for use of this stream- and river-dwelling invertebrate and summarizes recent data from the site of Pacbitun, in western Belize. Pachychilus not only was used for dietary purposes, but occasionally was included in Maya ritual deposits. Ecological information on the habitat of Pachychilus is given, as well as a description of its nutritional value and contemporary methods of collecting and processing jute in the modern Maya community of San Antonio (Cayo), Belize. It is concluded that Pachychilus was one minor but widespread element of the ancient Maya subsistence regime.