Comment on ‘A Bayesian approach to ageing perinatal skeletal material from archaeological sites: implications for the evidence for infanticide in Roman Britain’ by R.L. Gowland and A.T. Chamberlain

In 1993, I published a paper noting that the age distribution of perinatal infants for some Romano-British sites did not conform to a natural mortality pattern but rather showed a pronounced peak at a gestational age corresponding approximately to a full term infant. I interpreted this as suggestive of infanticide, given that the deed is generally carried out immediately after birth. Gowland and Chamberlain have recently published in this journal (J. Archaeol. Sci. 29 (2002) 677) a reconsideration of the problem of Roman infanticide in which they suggest that the peak I observed in the Romano-British perinatal age at death distribution may have been an artefact of the particular ageing technique I used, and they hence call into question the evidence for Roman infanticide. In this comment I argue that their work is seriously flawed and, using a re-analysis of my 1993 data, I demonstrate that the perinatal peak I observed in the Romano-British age distribution is a robust result that supports an interpretation of infanticide.     

Application of non-adult Bayesian dental age assessment methods to skeletal remains: the Spitalfields collection

The aim of this study was to test with non-adult skeletons the quality of a recently published dental age assessment method based on Bayes' theorem. The test sample consisted of dental X-rays from 16 individuals (range 2.6–15.1 years) recovered from the crypt of Christ Church, Spitalfields, London, for which age-at-death and sex were known. The training sample consisted of dental X-rays from 1346 girls and 1040 boys (range 1.9–16.0 years). Bayesian dental age assessment method was alternatively used with dependent and independent assumptions; the dependent Bayesian method (DBM) and independent Bayesian method (IBM), respectively. Moreover, both DBM and IBM were used alternatively with sex-specific standards and with non-sex-specific standard. Due to the training sample age distribution, both methods are efficient between 5.0 and 14.0 years. Whatever the method or the sex standard used, when dental age was different from chronological age, the discrepancy did not exceed one age group of one year. DBM produced tighter dental age 100% confidence intervals than IBM for the majority of assessments. The observed stability between results produced according to the type of sex standard used (i.e. sex-specific or non-sex-specific), and the number of teeth studied (range 4–7), is worthy of note for both archaeological and forensic contexts.     

Dental root dentine translucency used in age determination of medieval Norwegians from Trondheim

A pilot study on eight skulls from the churchyard of St Olav's church in Trondheim, excavated in 1988–1989, was carried out to compare age determined by root dentine translucency with the age assessed by a physical anthropologist. The difference in mean age between the two methods was not significant (p = 0.06). Age determinations based on root dentine translucency were then performed on removable teeth from the adults among the 248 skeletons found in the same churchyard, excavated in 1984–1985. A comparison between the ages determined using root dentine translucency and the ages previously determined by the direct inspection method was performed. A significant systematic difference was seen between the two methods (p = 0.000). The root dentine translucency method gave an age range for the cohort excavated in 1984–1985 between 30 and 72 years, whereas the direct inspection method gave a range between 15 and 63 years. Because evaluation of many criteria are required to achieve reasonably accurate estimates of age in connection with the direct inspection method, expertise in skeletal biology is necessary. The method of measuring root dentine translucency as a tool in archaeological and anthropological work and fieldwork and in forensic science seems to have advantages because the method can be used without previous extensive training.     

Radiographic analysis of dental development used in age determination of infant and juvenile skulls from a medieval archaeological site in Norway

Age determination based on radiographic examination of teeth and tooth development stages was performed on the infant and juvenile skeletons from St Olav's churchyard in Trondheim. All the 248 skulls with jaws and teeth were radiographed. Based on the apical closure of the second molar, 198 skulls were determined to be older than 15 years. In 38 of the remaining skulls the age could be determined radiographically based on tooth development stages. The age was below 8 years in 25 individuals (66 per cent). The correlation between the radiographic and a direct inspection age determination method was 0.969. The greatest discrepancies between the two methods were found in the age group 12–15 years.     

Trade or Trash: an examination of the archaeobotanical remains from the Byzantine harbour at Caesarea Maritima,Israel

A rich collection of waterlogged plant‐remains was recovered from the harbour at Caesarea Maritima, Israel. These remains were identified and represent several varieties of fruit, nut, cereal crop, crop by‐product and weed species. The two areas where remains were recovered provided assemblages that were different in composition. Trade or trash are the two interpretations discussed. In either case, however, the information derived from the assemblage is of archaeological importance, as the species present can aid in economic, dietary and trade reconstructions. © 2010 The Author     

A new calibration of the XRD technique for the study of archaeological burned human remains

A new calibration of human bones as a function of programmed temperature (200–1000 °C) and time (0, 18 and 60 min) is presented and discussed in order to investigate the issues related to the study of cremated bone remains by using the powder X-ray diffraction approach. The experimental results confirm the growth of hydroxylapatite crystallites as a function of the applied temperature, with a sigmoid behaviour that has been parameterized to the experimental data points. Particularly, it was observed that the thermal treatments for 60 min anticipate of about 100 °C the effects that are otherwise observed after the treatments for 0 min. The developed procedure was subsequently applied to cremated remains of various archaeological sites of Spain and supplied precise information not only about the temperature reached during the funerary rites, but also on the presumed duration for the cremation.     

Twin Burials in Prehistory: A Possible Case from the Iron Age of Germany

Compared with other mammals, multiple births are rare in humans. The attitude towards multiple births varies widely among cultures. Although expected to be present, evidence for twin burials from prehistoric times is scarce. However, knowledge about the attitude of ancient societies towards twins, as expressed for instance by funeral practices, would provide interesting insights into the spiritual world of these people. In 2001, an Iron Age settlement site was excavated near Ochtendung, Germany. The skeletons of two perinatal individuals were found in situ in shallow depressions close to post‐holes of a house pit in the western part of the settlement. The individuals appear to have been deposited in the depressions without special care, as one of them was face down. No archaeological findings were associated with the skeletons. Age at death of the two individuals was estimated to be between 36 and 40 weeks' gestation. The cusp patterns of the lower left first molars exhibit a similar configuration of the disto‐buccal cusps in both individuals, probably a division of the hypoconid. The investigation of the bones and the teeth revealed a similar stage of development of the individuals and supports the hypothesis of closely related individuals, probably twins. An interpretation as ‘building sacrifices’ seems unwarranted, considering the careless deposition of the bodies and the absence of any grave goods. Copyright © 2012 John Wiley & Sons, Ltd.     

Detection of blood proteins in ancient human bone using ELISA: A comparative study of the survival of IgG and albumin

ABSTRACT The immunological identification of species-specific blood proteins in skeletal remains has an important role in the reconstruction of ancient dietary, ritual and domestic behaviour. However, which protein provides the most suitable target for such work has not been considered previously, and the present investigation was carried out on human bone to assess the relative merits of IgG and albumin. Extracts of bone from 31 individuals (from the English Civil War, medieval, Early Saxon, Roman, Iron Age and Bronze Age periods) were tested by an enzyme-linked immunosorbent assay (ELISA) using monoclonal antibodies. Albumin was detected in 23 of the 31 skeletons, including those from the Iron and Bronze Ages, whereas IgG was identified in only one; this difference was very highly significant (P < 0.0005, χ² 30.0). The better detection rate for albumin was thought to be due to its higher original blood level, inherent differences in survival pattern being considered unlikely. Testing the same extract for both proteins in the same assay system ensured that any effects due to soil factors, burial conditions, physical integrity of the bone, chronological age, amount of original specimen, method of analysis and type of reagent were the same for each part of the study, thus permitting a valid comparison of antigen survival to be made. Control samples, including fresh and ancient animal bone extracts and human and animal sera, confirmed that the results were consistent and specific, with no cross-reactivity between human and animal material, and that as little as 10 ng of protein was detectable. In summary, the investigation compared the suitability of IgG and albumin for osteoarchaeological studies using a highly specific, sensitive and versatile ELISA; the results showed that albumin was a far better target molecule for such work and that it can survive in ancient bone for long periods of time.     

平粮台龙山文化遗存分析

平粮台城址是新石器时代中晚期域址中非常典型的一个代表,本文借鉴西方环境考古与聚落考古学的理论和方法,着重从聚落形态的角度出发,用考古材料研究社会关系,具体在各种物质遗存中从政治权利、阶层分化、生产生活、组织规划、民风民俗、神灵信仰等方面抽取提炼出非物质的信息,重建其社会组织结构,复原地区聚落模式和社会复杂化进程,以取得...     

Identifying locals, migrants, and captives in the Wari Heartland: A bioarchaeological and biogeochemical study of human remains from Conchopata, Peru

The site of Conchopata in the central Peruvian Andes was the secondary center in the heartland of the Wari Empire (AD 600–1000), and in this study we examine whether this urban locale was populated by locals, voluntary migrants from distant regions, and/or captives who were forcibly brought to Conchopata. We examine radiogenic strontium isotope ratios from 72 dental enamel and bone samples representing 31 formal burials and 18 human trophy heads to distinguish between locals and non-locals, and we examine skeletal and archaeological data to establish whether non-local persons were voluntary migrants or captives. We also describe a new, straightforward technique in the evaluation of radiogenic strontium isotope ratios to assist in detecting non-locals when large datasets are available.Results show that natal Conchopata inhabitants should exhibit radiogenic strontium isotope ratios that range from ⁸⁷Sr/⁸⁶Sr = 0.70548 to ⁸⁷Sr/⁸⁶Sr = 0.70610. Thus, among the 31 burials, 29 exhibit local values, suggesting that Conchopata was not a cosmopolitan center to which numerous foreigners migrated; rather, it was populated by local peoples, likely the descendants of the preceding Huarpa culture. The two individuals with non-local radiogenic strontium isotope ratios are an infant and a 17–22 years old female. The archaeological context suggests that the female may have been taken captive for subsequent sacrifice, as she was interred in front of the ritual D-shaped structure in which decapitated human heads (trophy heads) and sacrificed camelids were deposited. Among the 18 trophy heads sampled, 14 have non-local values, confirming previous studies of smaller samples that suggested that Wari warriors travelled to other locales and took captives—both adults and children—for subsequent transformation into trophy heads. Additional analyses of bone-tooth pairs from a subsample (12 burials and six trophy heads) shows that the burial group was much more sedentary (homogenous radiogenic strontium isotope ratios in bones and teeth) and the trophy head individuals were much more mobile (heterogenous radiogenic strontium isotope ratios in bones and teeth). Overall, the multiple lines of evidence support the notion that the Wari Empire occasionally used militaristic means, combined with elaborate ritualism, to subjugate other populations, a tactic that may have helped Wari establish and maintain control in particular regions in the Andes.     

Age attribution in domestic sheep by skeletal and dental maturation: A pilot study of available sources

The aim of the study was to assess the quality of the available evidence pertaining to the effects of sex and castration on the timing of skeletal and dental maturation in sheep. The initial premise was that our present knowldge of the effects of these factors is inadequate, and that currently available published sources and reference specimens are insufficient to allow confident interpretation of archaeological data. A literature survey was carried out, and adequately documented sheep skeletons in a number of major collections were recorded. The results show that the published evidence is contradictory and ambiguous, particularly with regard to the effects of castration, and that currently available reference material is mostly too diverse in origin and in quality of documentation to allow comparison of well-controlled samples. Some evidence was found to suggest that castration may delay epiphysial fusion during the second year, without delaying fusion of earlier- and later-fusing elements. Overall, it is concluded that much of the received wisdom on skeletal maturation in sheep is poorly founded and unreliable, and that tightly controlled test populations are needed if better data are to be obtained.     

广东唐宋制瓷手工业遗存分期研究

广东是唐宋时期瓷器的重要产区之一,本通过整理有关资料,用考古类型学方法作分期研究,以复原广东唐宋时期制瓷手工业历史面貌。     

A Multi‐disciplinary Approach to the Archaeological Investigation of a Bedrock‐Dominated Shallow‐Marine Landscape: an example from the Bay of Firth,Orkney, UK

Investigation of shallow‐marine environments for submerged prehistoric archaeology can be hampered in many localities by extensive bedrock exposure and thus limited preservation potential. Using the concept of ‘seamless archaeology’ where land‐based archaeology is integrated across the intertidal zone through to the offshore, a multi‐disciplinary approach is essential. This approach taken in the Bay of Firth, Orkney uses geophysics, historical archive and ethno‐archaeology, coastal geomorphology, palaeo‐environmental analyses and sea‐level science, and allows a clearer understanding of the landscape in which prehistoric settlers lived. While acknowledging the limitations of the preserved environment, we are successful in identifying areas of archaeological potential on the sea‐bed for both upstanding structural elements as well as sediment preservation that contains evidence for human occupation. This has wider implications beyond Orkney's World Heritage sites to provide a blueprint for similar studies elsewhere in the coastal zone. © 2012 The Authors     

Biosocial archaeology of the Early Neolithic: Synthetic analyses of a human skeletal population from the LBK cemetery of Vedrovice,Czech Republic

Bioarchaeology is a powerful tool in the examination of prehistoric collections of human skeletal remains. Application of a few bioarchaeological techniques (ancient DNA, carbon and nitrogen stable isotopes, and dental micro-wear) to the human osteological remains from the Early Neolithic LBK settlement of Vedrovice (Moravia), has allowed us to reconstruct not only broad cultural patterns but also the life histories of the individuals with insights into diet, migrations, ancestry, personal identity, social position and life experience. Vedrovice acted as a gateway settlement for a farming community with close ties to western Hungary and northeast Bohemia. The individuals showed clear differences in status and migration histories, giving glimpses of more complex social practices and patterns than could have been determined through the traditional culture-historical studies.     

The value of sieving of grave soil in the recovery of human remains: an experimental study of poorly preserved archaeological inhumations

The aim of this work is to assess the effects of sieving basal grave fills, following lifting of visible skeletal remains on the recovery of human bones and loose teeth in poorly preserved inhumation burials. The experiment was carried out during excavations at the 7th–9th century AD cemetery site at Whitby, England. Burials generally consisted of degraded bone fragments and/or soil stains. In each grave (N = 70 adult burials), all visible human remains were hand-collected on site; following this, the soil remaining in the grave was recovered and sieved successively through 8 mm, 4 mm and 2 mm meshes. No bone or dental fragments in the 2–4 mm fraction were identifiable to skeletal element. Approximately one third of the total weight of bone, and one third of the total numbers of teeth were recovered in the 4–8 mm and >8 mm sieved fractions. It is concluded that sieving down to 4 mm is adequate for recovery of adult skeletal remains at the study site. It would be useful to conduct similar sieving experiments at other archaeological cemetery sites to provide data on recovery when bone survival is good, and in subadult burials.     

Cartography of the archaeological surveys taken from an Ikonos stereo-pair: a case study of the territory of Hierapolis in Phrygia (Turkey)

The paper analyses methods and issues connected with the elaboration of Ikonos stereo high-resolution satellite images to create a large-scale cartography for archaeological research. This methodology has been used on an area of the ancient territory of Hierapolis in Phrygia (Turkey), where archaeological surveys, developed by the Italian Archaeological Mission, are in progress. In particular, the study area is situated between the modern villages of Yeniköy and Küçükdereköy, for which neither cartographies suitable for ground surveys nor aerophotogrammetrical covers were available. In this area there are a lot of archaeological remains; in particular, a large Hellenistic and Roman settlement and its necropolises, and also an old Turkish settlement, now destroyed. An Ikonos image was ortho-rectified to obtain a space-map of the entire area. It was used to extract vectorial thematic elements (modern topography, hydrology, archaeological remains and traces, etc.) for the production of maps for archaeological research in the tolerances of a 1:10,000 scale.     

Perimortem mutilation of human remains in an early village in the American Southwest: A case for ethnic violence

Recent excavations at the Sacred Ridge Site, just south of the town of Durango, Colorado, have uncovered the single largest deposit (to date) of mutilated and processed human remains in the American Southwest. This deposit dates to the very late eighth or very early ninth century A.D. and therefore represents an incidence of large-scale violence and perimortem mutilation dating to the Pueblo I period (A.D. 700–900), when initial village formation occurred in the northern San Juan Region of the Southwest. Expectations for various interpretations for the Sacred Ridge assemblage are generated based on previous research and cross-cultural data on cannibalism, warfare, and human bone processing. Based on a lack of fit with previous models developed to account for extreme processing (EP) events, including starvation cannibalism, warfare and social intimidation, and witch-craft accusations, it is proposed that the Sacred Ridge massacre was the result of ethnic conflict during the Pueblo I period.     

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.