The pictograph discovered at Black Dragon Canyon, Utah, in the late 1920s, is a classic example of the Barrier Canyon style, dating probably to AD 1–1100. Creationists, however, have argued, from the incomplete preservation of the motifs, that it depicts a winged monster or pterosaur. A new study using portable X-ray fluorescence refutes this ill-founded interpretation and reveals a scene characteristic of Barrier Canyon style, featuring an anthropomorphic figure. By removing interpretational bias, the new technology finally lays to rest the Black Dragon Canyon pterosaur.

In Central Europe, medieval and early modern burials sometimes contain iron sickles placed on the body or in direct contact with the deceased. Previous interpretations have considered them as markers of social status or occupation, or as magical and apotropaic. Detailed analysis of sickle burials from a cemetery at Drawsko in Poland leads to a discussion of demonology beliefs, dual faith and a resurgence in paganism following the Counter-Reformation. The results illustrate how the sickle might have served as an indicator of social identity, the nature of the individual's death and the way the deceased was perceived within their community.

Studies of trade routes across Southeast Asia in prehistory have hitherto focused largely on archaeological evidence from Mainland Southeast Asia, particularly the Thai Peninsula and Vietnam. The role of Indonesia and Island Southeast Asia in these networks has been poorly understood, owing to the paucity of evidence from this region. Recent research has begun to fill this void. New excavations at Sembiran and Pacung on the northern coast of Bali have produced new, direct AMS dates from burials, and analytical data from cultural materials including pottery, glass, bronze, gold andsemi-precious stone, as well as evidence of local bronze-casting. This suggests strong links with the Indian subcontinent and Mainland Southeast Asia from the late first millennium BC, some 200 years earlier than previously thought.

Disposal of the dead in early societies frequently involved multiple stages of ritual and processing. At Khonkho Wankane in the Andes quicklime was used to reduce corpses to bones in a special circular structure at the centre of the site. The quicklime was obtained from solid white blocks of calcium oxide and was then mixed with water and applied to disarticulated body parts. A few plaster-covered bones were recovered from the structure but most had been removed from the site, possibly by itinerant llama caravans. Thus, Khonkho Wankane was a ritual centre to which the dead were brought for processing and then removed for final burial elsewhere.

The strategic significance of the Dariali Gorge, the main pass across the central Caucasus, has long been recognised. It forms a border today as it has done for much of the past 2000 years. But how was an effective military force sustained in an isolated Alpine environment? Excavations, osteoarchaeology and landscape survey have revealed that the Early Middle Ages saw as much investment in controlling this key route as there was in Antiquity. Guarded by the same Muslim-led garrison for at least a quarter of a millennium, its survival in a harsh environment was made possible through military effort and long-distance food supplies.

The discovery in Llanmaes, South Wales, of a large midden dating from the Early Iron Age provided an opportunity to deepen our understanding of feasting in late prehistoric Britain. But the dominance of right fore-limbs of pigs in the faunal assemblage has raised questions about the social processes represented by this activity. The evidence suggests a move away from conspicuous consumption by an Early Iron Age elite towards a more community-focused event designed to galvanise social relations at a time when the breakdown of bronze exchange networks was challenging the social order.

The existence of moated mounds in the archaeological record of north-east Thailand has long been known, the majority constructed during the earlier first millennium AD. Despite considerable research, the purpose of the substantial and sometimes multiple moats surrounding raised occupation mounds has remained a mystery. Combining locational, hydrological and rainfall data with the archaeological evidence, this study of the moated mounds of the Khorat Plateau seeks to resolve the question through statistical analysis. The results suggest that water storage may have been the primary purpose of the moats, enabling communities to survive dry seasons and droughts.

The temple of Angkor Wat, visited annually by tens of thousands of tourists, is without question one of the great archaeological sites of mainland Southeast Asia. Less obvious to the casual visitor is that it was but a single element in a large dispersed city. The papers in this special section demonstrate how recent research using LiDAR, ground-penetrating radar and targeted excavation have transformed our understanding of Angkor Wat and its surroundings.

In the tropical regions of southern Asia, Southeast Asia and the southern Maya lowlands, the management of water was crucial to the maintenance of political power and the distribution of communities in the landscape. Between the ninth and sixteenth centuries AD, however, this diverse range of medieval socio-political systems were destabilised by climatic change. Comparative study reveals that despite their diversity, the outcome for each society was the same: the breakdown of low-density urban centres in favour of compact communities in peripheral regions. The result of this, an ‘urban diaspora’, highlights the relationship between the control of water and power, but also reveals that the collapse of urban centres was a political phenomenon with society-wide repercussions.

Although animal cults are a widely recognised feature of religion in ancient Egypt, little is known about the nature of the catacombs and mummies associated with the temples dedicated to animal gods. Here the authors present a biography of the Catacombs of Anubis at North Saqqara in Egypt, from their peak activity in the Late Period to their exploitation in modern times for raw materials. This research highlights the hitherto unappreciated scale of burial practices associated with animal cults, and the industries they supported and were supported by. The evidence suggests that the animal cults played a significant economic role, both in ancient Egypt and in subsequent eras.

The medicinal use of narcotics has a long history, extending back thousands of years, but installations for the ingestion of such substances are rarely preserved. One such installation was found in the Ottoman (fifteenth–seventeenth centuries) levels at Kaman-Kalehöyük, a multi-period settlement mound in central Turkey. Excavations of an Ottoman tandır or ventilated earth-oven have revealed a concentration of charred henbane seeds that suggest the hearth had been used for medicinal fumigation. Henbane smoke was a traditional treatment for relieving toothache and other maladies, but this is the first archaeological evidence for the practice in Asia.

Maya cities are known to have managed water; their existence in areas prone to seasons of excessive rainfall and long dry spells demanded it, but have these systems of water channels, aqueducts and reservoirs been viewed simply as utilitarian civil engineering? Recent excavations at the Maya site of Nakum in north-east Guatemala have revealed that the Maya might have had a more nuanced and symbolic approach to water and its management, one that reflected their belief system, replicated their interpretation of the cosmos and facilitated the use of water in ritual architecture and the display of power.

Maya murals depicting scenes of courtly life are well known from sites such as Bonampak; far less common are scenes depicting life outside the royal sphere. Recent excavations at Xultun in Guatemala have revealed well-preserved murals in a domestic context that offer a fresh perpective on life in the Maya court, that of the priests, scribes and artists who attended the royal governor. Here, the authors decode the images to reveal the lives and activities of those who planned, performed and recorded official events in Classic-period Xultun. One of only two well-preserved examples of eastern Maya lowland wall painting from the Late Classic period, this rare display of master craftsmanship outside of the royal court sheds new light on the lives of those who produced it.

The imperially sponsored maritime expeditions led by Zheng He in the early fifteenth century AD projected Ming Chinese power as far as Java, Sri Lanka and the East African coast. The Indian Ocean voyages are well documented in Chinese and Islamic historical accounts and by the nautical charts of Zheng He's journeys. Less clear has been the exact location of ancient Hormuz, the destination of Zheng He's voyages in the Persian Gulf. Recent re-analysis of ceramics from coastal southern Iran provides a solution. Archaeological evidence for Ming ceramics on present-day Hormuz Island and jewellery and gemstones of Iranian origin in southern China suggest that ancient Hormuz and Hormuz Island are one and the same.

Ritual items made of thin mica sheet are among the most spectacular of the special objects from the Hopewell sites of the Ohio Valley. Hitherto it has generally been believed that the mica was imported in raw material form from sources in the Appalachian Summit and cut into shape in the Hopewell core. Recent excavations at Garden Creek, a ritual enclosure on the margin of the source area, throws doubt on this model through extensive evidence for mica-working at this site. The Garden Creek community may have been drawn into the Hopewell sphere through its proximity to the mica sources, and the people of Garden Creek may have carried cut mica and crystal quartz as offerings to the major Hopewell centres in the course of pilgrimage.

The impressive architecture of Angkor Wat conveys a sense of harmonious design, but recent survey using ground-penetrating radar (GPR), coupled with targeted excavation, reveals a more complex picture. Fragmentary traces of a quincunx of earlier towers have been detected, which were partially demolished when the outer enclosure and western gateway were completed. Are these the remains of a shrine used during the construction period? If so, they throw new light on associated ritual activity during the building of Angkor Wat.

Intentional mummification is a practice usually associated with early Egyptian or Peruvian societies, but new evidence suggests that it may also have been widespread in prehistoric Britain, and possibly in Europe more generally. Following the discovery of mummified Bronze Age skeletons at the site of Cladh Hallan in the Western Isles of Scotland, a method of analysis has been developed that can consistently identify previously mummified skeletons. The results demonstrate that Bronze Age populations throughout Britain practised mummification on a proportion of their dead, although the criteria for selection are not yet certain.

The pre-Contact foraging communities of the north-west coast of North America have long been recognised as exhibiting many of the features we associate with agricultural societies, including sedentism and social inequality. Evidence from the pre-Contact plank house communities of Meier and Cathlapotle throws new light on the spatial organisation of these societies. Detailed analysis of stone tools allows the spatial division of labour to be determined within these large, multi-family households. This reveals that while some tasks were associated with particular social ranks, a hierarchical community can be identified in each plank house. Overall, the differences lie in the degree of engagement rather than the kind of activity, helping to characterise labour organisation among these unique, sedentary foragers. The results also provide insight into the potential of stone tool analysis for social reconstruction.

The archaeology of Atlantic slavery has been widely studied in recent years, but less attention has been paid to the post-slavery system of indenture that transported contract labourers from South Asia, China and Africa to new lands. Colonial Mauritius has left abundant archaeological remains, not least the cemetery for slaves and freed slaves established at Le Morne in the nineteenth century. Analysis of aDNA has demonstrated that individuals buried at Le Morne were of Madagascan and East African (probably Mozambican) origin, testifying to the long-distance movement of slave labour.