Sophisticated techniques of archaeological survey, including airborne imaging spectroscopy, electromagnetic induction and ground-penetrating radar, are opening up new horizons in the non-invasive exploration of archaeological sites. One location where they have yielded spectacular results is Carnuntum in Austria, on the south bank of the Danube, capital of the key Roman province of Pannonia. Excavations in the late nineteenth and twentieth centuries revealed many of the major elements of this extensive complex, including the legionary fortress and the civilian town or municipium. Excavation, however, is no longer the only way of recovering and recording the details of these buried structures. In 2011, a combination of non-invasive survey methods in the area to the south of the civilian town, where little was visible on the surface, led to the dramatic discovery of remains interpreted as a gladiatorial school, complete with individual cells for the gladiators and a circular training arena. The combination of techniques has led to the recording and visualisation of the buried remains in astonishing detail, and the impact of the discovery is made all the greater by the stunning reconstruction images that the project has generated.

A bone deposit found in a round barrow overlying a rich Beaker-period burial in Northamptonshire (England) contained at least 184 domestic cattle skulls and one aurochs skull, but very few other cattle bones or bones of other animals. Most of the cattle were young adults. The relative scarcity of premolars suggests that they were deposited on the cairn some time after death. The paper discusses archaeological and ethnographic parallels for this unusual deposit.

Recent survey work in western Azerbaijan has revealed that hilltop fortresses of the Bronze Age and Iron Age may have been parts of larger walled complexes and could have functioned as the urban centres of small independent polities. On the Şərur Plain long lengths of stone wall link the major fortress Oğlanqala it to its smaller neighbour Qızqala 1, with evidence of a substantial settlement on the lower ground between the two. The southern Caucasus lies beyond the core area of Near Eastern states but these new discoveries suggest that major centres of power arose here, controlling both the fertile plains and strategic trade routes through mountainous terrain.

The author reconsiders the ‘wave of advance model’ used to describe (and partly explain) the rate at which people adopted farming. It is usually applied to large open areas, where one population group can easily see or meet another – but the populations considered here live on islands. Joaquim Fort finds that the 5000 km extent of the South Pacific was settled in the Neolithic period at a rate of at least 8 km per year.

At a hill-top site in the Korrannaberg, where there is a water source and a sandy arena embraced by a rocky ridge, the author persuasively evokes a lively prehistoric ritual centre, with rock gongs, reverberating echoes, dancing and trance.

The authors find a context for the rock art of the central Sahara by excavating and recording examples of engraved stones from circular platforms used to sacrifice animals. The type of rock art known as the Pastoral style, featuring evocative outline drawings of cattle, appears on upright stones incorporated into the platforms in the period 5430–5150 BP, and probably earlier. Furthermore, they show that these places were part of a dense and extensive monumental landscape, occupying a harsh environment, supplying quartzite, but with little settlement, appearing to serve the spiritual needs of hundreds of Neolithic people.

Excavations at four Iron Age moated sites in the Mun Valley in Thailand have identified seminal innovations, defined as emergent properties, that illuminate the origins of the kingdom of Angkor. Combined with recent research at Angkor itself, they present a compelling case for re-examining fundamental cultural changes that took place over a period of little more than four centuries, from AD 400–800. They compare with similarly rapid developments in Mesoamerica and Mesopotamia; fundamental parallels are evident in the role of charismatic agents for change, an ideology conferring god-like status on leaders, a new and highly productive economic base, an expanded interaction sphere for the exchange of prestige goods, and endemic warfare.

Late Pleistocene and early post-Pleistocene communities in East Asia experimented with pottery production and the domestication of plants and animals. What was the nature of the social organisation of these early small-scale societies? Some North American writers consider pottery making to be a ‘prestige technology’ sponsored by aggrandising individuals. However, examples from south of the Nanling Mountains and other areas have simple tool assemblages and site plans showing very little evidence of social differences. Judging from recent debates about social agency, there are more appropriate explanations for the earliest pottery making, which focus on the collective rather than the individual.

The concept of the Anthropocene has become increasingly prominent in recent years, but is it best defined as a geological period or as part of a longer-term pattern of human actions? And when did it begin? Todd Braje launches this Debate feature by arguing for a shift away from definitions and toward an emphasis on the human causes and consequences. This piece is followed by a series of reactions from geologists and anthropologists, with a concluding reply from the author.

Archaeologists have always been good at creating huge quantities of data, but not so good at arranging to preserve them in ordered, accessible and public archives, or at re-using other peoples’ data themselves. The Information Age presents particular problems for the preservation of digital data (Eiteljorg above, pp. 1054-7) but also provides unique opportunities for their re-use. Within the Higher Education sector in the United Kingdom there is now a national initiative to establish an Arts and Humanities Data Service (AHDS). This paper will describe the role of the Archaeology Data Service (ADS), one of the services embraced by the AHDS, and will indicate how it proposes to provide access to other peoples’ data.

Dactylopius coccus has been used in Mexico and Peru as a source of natural dyes since pre-Columbian times. A phylogenetic analysis of the genus Dactylopius, and the disjoint distribution of D. coccus, suggest that the origin of D. coccus is South America and was introduced into North America by sea routes.