New Bioarchaeological Evidence and Radiocarbon Dates from the Lambayeque/Sicán Culture Camelids from the El Brujo Complex (Northern Coast of Peru): Implications for Funerary and Herd Management Practices

ABSTRACT

Pastoralism and camelid management have been essential to all aspects of pre-Hispanic Andean societies. Here, we present zooarchaeological and isotopic data on domestic camelid remains from Huaca Cao Viejo (El Brujo archaeological complex) on the northern coast of Peru, and dated to the Lambayeque/Sicán period—to characterise their biological age, diet, life history, possible geographic origin and ritual use. Domestic camelids, representing a wide range of biological ages and a high rate of polydactyly, were found as burial offerings in direct association with human funerary bundles (fardos). Direct AMS dates indicated that camelids were buried over a short period of time (AD 1022–1176) confirming the Lambayeque presence in the Chicama Valley during the first half of the Late Intermediate Period. Stable isotopic analyses were carried out on both bone collagen and hair keratin, including incremental analysis. A considerable variability in δ¹³C values at both the intra-individual and the intra-group level and a large contribution of C₄ resources to diet are shown. This clearly supports local management and camelids originating from various herds. Zooarchaeological and isotopic evidences suggest diversity in herding practices and suggest the importance of the herds in fulfilling the transportation demands for trade in goods.     

Volume density of South American camelid skeletal parts

This paper provides a set of volume density values for skeletal parts of lama (Mammalia, Artiodactyla, Camelidae). The method by which these values were obtained is described and compared with published data of densitometries made on cervids, showing a high positive correlation between the bone densities of the two artiodactyls. The camelid bone density data are used to discuss the interpretation of skeletal patterning in an Andean archaeofaunal assemblage.     

Assessing Conflict and Exchange: The Defensive and Access Layout of La Alumbrera (c. AD 1000–1480, North-west Argentina)

Abstract

The Regional Development Period (c. ad 1000–1480) in north-west Argentina is characterized, among other important features, by the coexistence of two phenomena seemingly opposed: a constant situation of violent conflict between communities and the maintenance or even intensification of interregional goods exchange networks. Although recent studies recognize the simultaneity of these processes, only a few scholars asked how communities dealt with the necessity of protecting themselves as well as obtaining distant resources. In this paper we present the analysis of the defensive and access layout of La Alumbrera archeological site which has the peculiarity of condensing features that may illustrate an example of how conflict and exchange coexisted at a local scale.     

New paleoparasitological techniques

Ruffer was the first researcher to show, using hydration of samples and histological techniques, the presence of Schistosoma haematobium eggs in the kidneys of Egyptian mummies dating between 1250 BC and 1000 BC. Since then, with the collaboration of archaeologists, palynologists, parasitologists, biologists, entomologists, ecologists, malacologists…new ideas have arisen and different techniques have been adapted for the study of parasites in an archaeological context. Research into the hydration of samples has been carried out, and flotation and sedimentation techniques started to be used, testing different solutions. Eggs, larvae and adults of both ecto- and endoparasites, as well as non-parasitic arthropods have been found, but none of the methods used have enabled to quantify the parasitic forms found, which is important to know the epidemiology of parasitic diseases and to carry out comparative studies. At present, the development of molecular biology techniques applied to palaeoparasitology is permitting the detection of traces of parasites in the past.     

Life History and Origin of the Camelids Provisioning a Mass Killing Sacrifice During the Chimú Period: Insight from Stable Isotopes

ABSTRACT

The site of Huanchaquito-Las Llamas, situated in the Moche Valley, Peru, dated to the Late Intermediate Period (AD 1100-1470), represents a single event mass killing of children and domestic camelids of the Chimu society. Reconstruction of the life histories of 82 camelid individuals based on stable isotope analysis of bone collagen indicates that they originated from the lowlands. Isotopic inter-individual variability indicates diversity in dietary sources, consisting of wild plants and cultigens, grown in water-limited and non-water-limited conditions, as well as a large proportion of C₄ plants, suggesting that the animals originated from various herds that were differently managed. In contrast, uniformity in terms of restricted coat colour and young age could suggest that the animals derived from specialised herds. It is possible that the requirement in a short period of time for a massive number of animals meeting certain criteria exceeded the capacity of these herds. This study presents the largest isotopic dataset measured at a single pre-Hispanic site so far and the first to record herding practices for the Chimú society. Comparison with previous isotopic datasets shows differences between ritual and non-ritual groups, as well as diversity in pastoralism practises through time in the Central Andes.     

An Integrated isotopic study of Early Intermediate Period camelid husbandry in the Santa Valley,Perú

ABSTRACT

Stable carbon and nitrogen isotope compositions were determined for camelid bone collagen, hair, and wool (fibre) sampled from textiles from archaeological sites in the Santa Valley (north coast of Perú) occupied during Moche III (El Castillo, A.D. 300?500) and Moche IV (Guadalupito, A.D. 500?700) phases; a small number of camelid bone collagen samples were also analysed from the Late Suchimancillo Phase (A.D. 0?300). These data suggest that localised camelid husbandry was practiced in the Santa Valley from at least the Moche III phase. The nature of camelid husbandry likely involved animals being kept spatially segregated and fed a diverse range of fodder. The isotopic compositions of the bone collagen and wool textiles were very similar, which suggests that the wool that was used to produce the textiles was derived from local camelids rather than being acquired from the highlands. The transition from Moche III to Moche IV, which saw a significant increase in Mochica presence in the Santa Valley, was not accompanied by major changes in camelid husbandry practices. Localised camelid husbandry continued through this transition with minimal change; the prolonged droughts of the sixth century A.D. had no discernable effect on camelid husbandry, probably due to the special hydraulic conditions unique to the Santa Valley.     

Comparison of XRF and PXRF for analysis of archaeological obsidian from southern Perú

Chemical sourcing is becoming an increasingly important component of archaeological investigation. Instruments used for elemental analysis generally must be operated in a controlled laboratory environment. Further, many methods require destruction of a small portion of the objects under investigation. These facts inhibit the application of chemical sourcing studies in a number of research contexts. Use of portable non-destructive instruments would resolve these issues. Sixty-eight obsidian artifacts from the site of Jiskairumoko, in southern Perú, were examined by X-ray fluorescence spectrometry (XRF) and portable X-ray fluorescence spectrometry (PXRF). Results were compared for consistency in terms of source determination and individual element concentrations. Both instruments determined that the same sixty-six artifacts derived from the Chivay obsidian source and both identified the same two artifacts that could not be assigned to source. Individual element comparisons showed significant differences, but these can be resolved through instrument cross calibration, and differences had no bearing on source identification. PXRF was found suitable for determining obsidian sources in southern Perú and for identifying specimens that require more sensitive analytical methods such as, instrumental neutron activation analysis (INAA). Regular use of Chivay at Jiskairumoko suggests consistent trade relationships developed during the Archaic.     

Pre-Hispanic gold pieces of an enigmatic archaeological finding in Medellín,Colombia: A glance at an archaeometric analysis

The study analysed pre-Hispanic gold objects found within a surprising archaeological finding of a structure that likely served as a funeral pyre in Medellín, Colombia. ¹⁴C analyses of the site's organic materials dated the structure to the fifth century ce . The metal objects were subjected to X-ray diffraction (XRD), energy-dispersive X-ray fluorescence (EDXRF), scanning electron microscopy-energy dispersive X-ray (SEM-EDX), density measurement by the Archimedes method, and metallographic analysis. The measurements by EDXRF and SEM-EDX showed that the pieces were composed mostly gold and silver. The XRD results indicated that the microstructure of the objects corresponded to a single phase of gold and silver. The images obtained by the metallographic microscope showed equiaxial grains with some twins, a structure consistent with annealed metals. The different colours observed correspond to different grain orientations. Pre-Hispanic objects from a second archaeological site in the municipality of Amalfi (Department of Antioquia) were also analysed for comparative purposes. The results showed that the gold objects were not subjected to any alloying process, but were instead manipulated in their original form (native gold). The shape of the objects and their microstructural results suggested that the pieces were manufactured by casting, mechanical deformation and then annealing.     

Imaging Evaluation of Skull Trepanation Using Radiography and CT

Cranial surgery as practised by the prehistoric and present-day traditional medicine man is the oldest known and one of the highest surgical achievements in the history of medicine. This study examines morbidity and mortality of this ancient surgical procedure by re-examining and reviewing reports of 71 completely trepanned skulls from pre-Columbian Peru by three techniques: gross visual observation and palpation; radiography; and CT. The specimens are located in the San Diego Museum of Man and are part of the Hrdlicka collection. Clear distinction can be made by visual observation between skulls with bone regeneration and those without; that is, between patients who survived long enough to allow bone healing and those who died immediately or within a few days of the operation. 64.8 per cent of skulls had complete healing, 12.7 per cent had partial healing and 22.5 per cent had no evidence of healing. Thus, a post-operative survival rate of 77.5 per cent is noted by gross examination. The meaning of completely trepanned skulls with no evidence of healing is questionable, however, some unhealed skulls may represent post-mortem trepanation, suggesting a lower surgical mortality. Both radiography and CT scan demonstrate with considerable accuracy the presence or absence of new bone formation on trepanned skulls. One skull demonstrated evidence of partial bone healing by CT and radiography but not by our gross examination or by that of some anthropologists. Evidence of osteomyelitis was illustrated by CT scan but not by radiography.     

A possible case of metastatic carcinoma in a middle Sican burial from Batán Grande,Perú

The skeleton of a young to middle-aged adult excavated at the base of the Pre-Incaic pyramid of Huaca Las Ventanas, northern coast of Peru, shows an osteoplastic formation on the fifth lumbar vertebra compatible with a diagnosis of metastatic carcinoma, possibly from the prostate gland.     

Flotation versus dry sieving archaeobotanical remains: A case history from the Middle Horizon southern coast of Peru

Abstract

During excavations at the site of Casa Vieja located in the Peruvian coastal desert, archaeological plant remains were systematically collected to assess whether it is more productive and informative to sieve sandy sediments in dry environments or to process such samples by water flotation, a persistent methodological concern. At Casa Vieja, dual subsamples were collected and analyzed using both of these procedures. For dry, sandy sediment conditions, each processing strategy was found to yield a different view of the botanical remains. Dry sieving recovers more of the larger plant specimens whereas water flotation yields more of the smaller-sized material. These results should be incorporated into archaeological research designs in the future, especially for desert environments.