Land Snail Shell Beads in the Sub-Saharan Archaeological Record: When,Where, and Why?

Shell beads are well established in the archaeological record of sub-Saharan Africa and appear as early as 75,000 BP; however, most research has focused on ostrich eggshell (OES) and various marine mollusc species. Beads made from various land snails shells (LSS), frequently described as Achatina, also appear to be widespread. Yet tracking their appearance and distribution is difficult because LSS beads are often intentionally or unintentionally lumped with OES beads, there are no directly dated examples, and bead reporting in general is highly variable in the archaeological literature. Nevertheless, Achatina and other potential cases of LSS beads are present at over 80 archaeological sites in at least eight countries, spanning the early Holocene to recent past. Here, we collate published cases and report on several more. We also present a new case from Magubike Rockshelter in southern Tanzania with the first directly dated LSS beads, which we use to illustrate methods for identifying LSS as a raw material. Despite the long history of OES bead production on the continent and the abundance of land snails available throughout the Pleistocene, LSS beads appear only in the late Holocene and are almost exclusively found in Iron Age contexts. We consider possible explanations for the late adoption of land snails as a raw material for beadmaking within the larger context of environmental, economic, and social processes in Holocene Africa. By highlighting the existence of these artifacts, we hope to facilitate more in-depth research on the timing, production, and distribution of LSS beads in African prehistory.     

Prehistoric Investigations in Cantabrian Spain

Abstract

The rich Paleolithic record from Cantabrian Spain has long been interpreted in light of the phylogenetic, chronological scheme developed largely in the Périgord region of SW France, despite important differences in industries, environments, and faunas. This paper outlines the development of prehistoric research in Cantabria from its beginnings a century ago to the present, from the early work of establishing a regional chronology to the on-going attempts to understand and explain the changing regional adaptations of Pleistocene and early Post-Pleistocene hunter-gatherers. Cantabria is usually treated only in passing in syntheses of the prehistory of Western Europe, and its extensive literature is far less widely known than that of SW France. We hope in part to remedy the situation by providing a concise regional overview and an extensive bibliography of classic and modern references.

Preliminary conclusions from archaeological investigations and allied paleoenvironmental research by members of the La Riera Paleoecological Project are also discussed. The La Riera Project is an example of a modern, problem-oriented regional approach to the study of prehistoric human adaptation. It was designed to generate and test hypotheses about Late and Post-Pleistocene ecosystems in Cantabrian Spain. These hypotheses examine the relationships among habitat selection, site location, and climatic change, test for periodicity in prehistoric occupation, and examine patterns of covariance in artifact and faunal debris categories with the objective of isolating changes in adaptation recoverable from the 12,000 year record at the La Riera cave, and at other sites of comparable antiquity in the Cantabrian zone. Preliminary results define patterns of site-functional variation at La Riera related to prehistoric activity sets. These patterns appear to cut across the culture/stratigraphic units upon which much Upper Paleolithic research in western Europe is based.     

MOLLUSC SHELL SIZES IN ARCHAEOLOGICAL CONTEXTS IN NORTHERN SPAIN (13 200 TO 2600 CAL BC): NEW DATA FROM LA GARMA A AND LOS GITANOS (CANTABRIA)

Shellfish metrical data are a source of information about the exploitation of marine resources in the past. In this study, we propose a methodological approach based on the size structures of different rocky intertidal gastropod species. Three limpet species (Patella vulgata, Patella intermedia and Patella ulyssiponensis) and the toothed topshell Osilinus lineatus are studied from two sites in Cantabrian Spain: La Garma A and Los Gitanos caves over a period of 10 000 years, covering the Pleistocene–Holocene transition. Data are also supplied about a further sea snail species, the periwinkle Littorina littorea (Upper Magdalenian). A reduction in size can be seen, between the upper Magdalenian and the late Neolithic, in the case of the first four species. The explanation for this decline is probably related to the climate change that occurred in the transition between the Late Pleistocene and the Holocene, but it is possible that human impact might also have influenced shell sizes in the Mesolithic and Neolithic.     

The oldest agriculture in northern Atlantic Spain: new evidence from El Mirón Cave (Ramales de la Victoria,Cantabria)

Emmer wheat (Triticum diccocum) has been positively identified from the stratigraphically oldest ceramic- and domesticated livestock-bearing level of El Mirón Cave in the Cantabrian Cordillera. The grain is AMS ¹⁴C-dated to 5550±40 BP. This date is congruent with six others from the same layer, higher within which were found other grains of wheat, including einkorn as well as emmer. Although wild ungulates (mainly red deer) were still hunted, abundant ovicaprines, together with small numbers of cattle and pigs, appear in this level-for the first time in the 40,000-year record at El Mirón. Potsherds (undecorated, but of very good quality) also appear abruptly and abundantly. However, the associated lithic assemblage contains specific tool types also found in late Mesolithic contexts in Cantabrian Spain. In addition to the full suite of Neolithic indicators at El Mirón, as confirmed by less unambiguous early agro-pastoral evidence from other sites in the Vasco-Cantabrian region, there are megalithic monuments both in the vicinity of the cave and throughout the region that are similarly dated. All these data tend to suggest that Neolithic adaptations—already present about a millennium earlier not only along the Mediterranean coast, but also much closer, to the southeast of the Cordillera—were quickly adopted as “a package” by Cantabrian Mesolithic foragers, possibly as a consequence of social contacts with Neolithic groups in southern France and/or the upper Ebro basin of north-central Spain.     

Humans and marine resource interaction reappraised: Archaeofauna remains during the late Pleistocene and Holocene in Cantabrian Spain

The exploitation of marine resources in Prehistory has traditionally been regarded as insignificant, at least until the late Upper Pleistocene. However, in recent years the systematic study of archaeofaunal remains with a marine origin has widened our knowledge of the role they played among groups of hunter–gatherers in Europe. This paper analyses the available data about the evidence for the exploitation of the different marine resources (molluscs, birds, mammals, crustaceans, echinoderms and fish) that have been recorded at archaeological sites in Cantabrian Spain in the late Pleistocene and early Holocene.With the information currently available, it is clear that although it is in the Mesolithic when archaeozoological remains with a marine origin are found most often, the exploitation of these resources in the region began in the Early Upper Palaeolithic.     

Neolithic occupation and mid-Holocene soil formation at Encosta de Sant'Ana (Lisbon,Portugal): a geoarchaeological approach

Excavations at the archaeological site of Encosta de Sant'Ana (Lisbon, Portugal) uncovered a mid-Holocene buried alluvial soil associated with early Neolithic occupation layers. Routine laboratory analyses and micromorphological observations were undertaken on the soil material. Humic acids from its Ab horizon, as well as Neolithic ecofacts, were radiocarbon dated. The dates obtained indicate that soil was formed between c. 8.0 and 6.0 cal ka BP and that the pedological evidence fits the record of the North Atlantic Holocene IRD events (“Bond events”) and the so-called “Holocene climate optimum”. The geoarchaeological record reveals that Neolithic inhabitants settled upon a stable surface, still affected by soil formation that was suddenly interrupted by slope wasting, probably in correspondence to Bond event 4, at c. 6.0 cal ka BP.     

The origin and construction of pre-Hispanic mounds in the Upper Delta of the Paraná River (Argentina)

Pre-Hispanic mounds, known as “cerritos,” “cerritos de indios,” or “aterros” across southeastern South America, are one of the most conspicuous and well-studied cultural manifestations in lowlands archaeology. Nevertheless, in the Upper Delta of the Paraná River, mounds are rarely studied, and even their anthropic origin is under debate. This could be related to the fact that anthropogenic mounds are located on a floodplain where other “mound-like” natural geoforms (generated by fluvial processes) are also present. In addition to this, the natural geoforms also contain evidence of Holocene human occupation (sherds, bones, charcoal, humans burials, etc.), which can lead to interpretive errors of their origin and formation. Thus, this project set out to determine the genesis and evolution of these mounds and also to identify the cultural occupation and transformation of natural landforms found in the area. In this article, natural and anthropogenic systems and processes were identified and characterized through the application of proxy record analysis (i.e., sediment composition, stratigraphy, micromorphology, silica bodies and chronological analysis) at the Los Tres Cerros archaeological locality in the Upper Delta of the Paraná River of Victoria County, Entre Ríos Province, Argentina. This analysis allowed for the recognition of natural anthropogenic interfaces, such as the “pre-mound” occupation as well as evidence of cultural activities such as mound construction, between 1,000 and 500 ¹⁴C years bp. These findings were integrated into current research on the variability of mound construction during the Late Holocene in the lowlands of South America.     

Shellfishing and the Colonization of Sahul: A Multivariate Model Evaluating the Dynamic Effects of Prey Utility,Transport Considerations and Life-History on Foraging Patterns and Midden Composition

ABSTRACT

Archaeological evidence of shellfish exploitation along the coast of Sahul (Pleistocene Australia-New Guinea) points to an apparent paradox. While the continental record as a whole suggests that human populations were very low from initial colonization through early Holocene, coastal and peri-coastal sites dating to that time are dominated by small, low-ranked, littoral taxa to the near-complete exclusion of large, higher ranked, sub-littoral species, precisely the opposite of theory-based expectations, if human populations and predation rates were indeed as low as other data suggest. We present a model of shellfish exploitation combining information on species utility, transport considerations, and prey life-history that might account for this apparent mismatch, and then assess it with ethnographic and archaeological data. Findings suggest either that high-ranked taxa were uncommon along the Pleistocene coastlines of Sahul, or that abundant and commonly taken high-ranked prey are under-represented in middens relative to their role in human diets largely as a function of human processing and transport practices. If the latter reading is correct, archaeological evidence of early shellfishing may be mainly the product of subsistence activities by children and their mothers.     

Archaeological Survey of Dynamic Coastal Landscapes and Paleoshorelines: Locating Early Holocene Sites in the Prince Rupert Harbour Area,British Columbia,Canada

We present and test a predictive archaeological survey model that targets early Holocene paleoshorelines in the Prince Rupert Harbour area using LiDAR bare earth digital terrain models and a 15,000-year reconstructed history of relative sea level change. Despite a century of archaeological research in the study area, no sites dating earlier than 6000 cal b.p. had been identified prior to our research. Our field survey identified three early Holocene sites associated with paleoshorelines 7–10?m above current sea level (masl). These locations demonstrate repeated use through the Holocene even as shoreline position changes. We discuss these new data in relation to the early Holocene archaeological record from the rest of the northern Northwest Coast and suggest that the region was ubiquitously occupied by this time and that the lack of recorded early Holocene sites in some areas is likely a result of survey and preservation bias, rather than historical reality.     

Significance of diadematid echinoid ossicles in micropalaeontological samples,Miocene–Pliocene of Indonesia

Fragments of diadematoid echinoids from the early and middle Miocene, and late Miocene–Pliocene, respectively, of Java, Kalimantan and Sulawesi, Indonesia, are identified as diadematid spp. indet. (radioles from all sites) and Centrostephanus sp. (an interambulacral plate; early Miocene, Java). The radioles are probably a mixture of Diadema ± Centrostephanus ± Echinothrix. This is the first report of identifiable fossil diadematoid remains from Indonesia and demonstrates that these echinoids, so common in modern reef environments, were present in the Neogene of the region. Even though classified in open nomenclature, Centrostephanus sp. nevertheless provides further evidence for the Cenozoic record of a genus in which the only nominal species are of Late Cretaceous and Holocene age.     

Coleoptera from Late Medieval Smoke-Blackened Thatch (SBT): their Archaeological Implications

Abstract

Distinctive assemblages of Coleoptera (beetles) recovered from seven samples of smoke-blackened thatch (SBT)from a range of late medieval roofs in the south of England are listed. The age, ecology and possible origins of this fauna are discussed. Although its precise origin is known, it is suggested that its occurrence is not limited to thatch, and so cannot be used as a 'finger print' for thatch per se. A find of Sitophilus granarius, the 'granary weevil', suggests that thatch may represent another route by which this species has been incorporated into the archaeological record.     

The Upper Paleolithic in Mediterranean Spain: A Review of Current Evidence

In spite of an active and sophisticated archaeological research program, the Paleolithic of the Iberian peninsula remains comparatively little known to English-speaking prehistorians, with the exception of Cantabrian Spain. The rich data set compiled by Spanish prehistorians and their colleagues over the past several decades stands to make a valuable and unique contribution to our understanding of the Pleistocene prehistory of Europe. We present a detailed overview of Upper Paleolithic chronology, sites, and assemblages for Mediterranean Spain, an area of over 1,600,000 km ² that extends from the French border to the Straits of Gibraltar. To interpret these data, we employ a regional perspective that emphasizes studies of paleoeconomy (especially zooarchaeology) and settlement. The Middle–Upper Paleolithic transition and Upper Paleolithic art also receive detailed treatment, and the Upper Paleolithic of Mediterranean Spain is discussed in the broader context of the late Upper Pleistocene of western Europe and the Mediterranean Basin.     

Chemical Residues as Anthropic Activity Markers. Ethnoarchaeology,Experimental Archaeology and Archaeology of Food Production and Consumption

ABSTRACT

Chemical residues preserved in floors can be considered anthropic activity markers. In fact, residues are strictly related to the activities performed and reflect their spatial distribution. We present a synthesis of the work carried out over the last few decades in Mexico and Italy related to the study of chemical residues in floors. Residues can be identified performing specific chemical analyses both of plastered or earthen floors samples. We outline a methodological approach concerning the use of the markers of the activities to interpret food production and consumption in the archaeological record, based upon evidence from experimental, ethnoarchaeological and archaeological examples. Here we point out the advantages and problems of such an approach, mainly related to equifinality, of the use of spot tests and gas chromatography coupled with mass spectrometry techniques using examples from different sites in the world.     

Holocene Deposits of Saharan Rock Shelters: The Case of Takarkori and Other Sites from the Tadrart Acacus Mountains (Southwest Libya)

The excavation at Takarkori rock shelter is part of a long-term study of Holocene cultural dynamics in southwest Libya begun in the early 1990s. With a rich Holocene occupation, the area is one of the key spots for reconstruction of human occupation of the last 10,000 years. In this region, similar to the case in the rest of the Sahara, most of the data come from surface investigations at open-air sites, while excavated caves and rock shelters provide just a few. Although less exposed than open-air sites, Holocene archaeological deposits in Saharan caves and rock shelters are characterized by a fairly dynamic nature. Loose sediments, coupled with variability of human occupations and magnitude of natural agents, determine multiple alterations to the archaeological deposits in sheltered sites. In this paper, we present the nature and meaning of the archaeological deposits at Takarkori rock shelter, where a relatively large area has been recently excavated, showing a stratigraphic sequence extending from c. 9,000 to 4,200 BP, unevenly represented by several occupation pulses. In order to sharpen understanding of the development of human occupation at this site, specific procedures for the study and recording of the archaeological deposit have been developed, along with a program of extensive radiocarbon dating. Data from the Takarkori sequence ultimately will be integrated with available published stratigraphies from the Acacus Mountains, with the aim of reviewing the results from past excavations.     

Strandloping as a Resource-Gathering Strategy in the Cape,South African Holocene Later Stone Age: The Verloren Vlei Record

ABSTRACT

Elands Bay and adjacent coastline near the mouth of the Verloren vlei on the South African Atlantic coast offered Later Stone Age foragers a variety of marine, estuarine, and terrestrial food resources. We suggest that strandloping (beachwalking or beachcombing) by latest Holocene foragers as a regular practice constituted an important component in their repertoire of subsistence activities. Washed-up mussels, seals, birds, whales, and other recently dead animals would have been available to such strandlopers. We distinguish strandloping as a subsistence practice from the procurement of living prey, including shellfish, mammals, birds, and other animals. The Holocene archaeological record of the Elands Bay area suggests changes through time in resource use, and these changes appear to be recognizable in patterns of shellfish gathering. During the latest part of the Holocene, between about 1,500 and 300 years ago, subsistence practices display a distinctive character that perhaps conforms more strongly than previously to what we conceive of as strandloping.     

A palaeoenvironmental context for Terminal Upper Palaeolithic and Mesolithic activity in the Colne Valley: Offsite records contemporary with occupation at Three Ways Wharf,Uxbridge

Abstract

Multi-proxy analyses from floodplain deposits in the Colne Valley, southern England, have provided a palaeoenvironmental context for the immediately adjacent Terminal Upper Palaeolithic and Early Mesolithic site of Three Ways Wharf. These deposits show the transition from an open cool environment to fully developed heterogeneous floodplain vegetation during the Early Mesolithic. Several distinct phases of burning are shown to have occurred that are chronologically contemporary with the local archaeological record. The floodplain itself is shown to have supported a number of rare Urwaldrelikt insect species implying human manipulation of the floodplain at this time must have been limited or episodic. By the Late Mesolithic a reed-sedge swamp had developed across much of the floodplain, within which repeated burning of the in situ vegetation took place. This indicates deliberate land management practices utilising fire, comparable with findings from other floodplain sequences in southern Britain. With similar sedimentary sequences known to exist across the Colne Valley, often closely associated with contemporary archaeology, the potential for placing the archaeological record within a spatially explicit palaeoenvironmental context is great.     

History in Prehistory: The Oral Traditions of the Rarotongan Land Court Records

The records of the early 20th century Rarotongan land courts are an invaluable source of ethnohistoric information regarding pre-contact land tenure, social and political relations, and historical processes affecting tenure and relations. They are analysed here from the point of view of contextualising the archaeological record of the island. Pre-contact Rarotongan society is shown to have been fluid and flexible, although one notable trend is the gradual aggrandisement of ariki power. This trend continues into the missionary and early colonial periods, where political unity and ariki hegemony become established. European intervention was a single, though defining, episode in a long history. Although it transformed the political order, Rarotonga remained resolutely Rarotongan.     

Persistent land use patterns and the mid-Holocene housepits of Wyoming

Abstract

The cyclical use of sites and locales over decades, centuries, and even millennia is an important aspect of hunter-gatherer land use that is rarely considered in studies that focus on a single annual cycle. The long-term perspective provided by archaeological data can be used to delineate persistent land use patterns and contribute to an understanding of the complexity of hunter-gatherer behavior. Mid-Holocene Wyoming housepit data document persistent land use over at least a 2000-year period at three spatial scales—the reuse of housepits, reuse of sites containing housepits, and use of different sites within the larger region. Slab-lined cylindrical basins at many sites in southwest Wyoming provide evidence for stable long-term land use during the middle Holocene. The focal point of this pattern was probably a predictable resource, possibly some type of root plant that would have been available during the dry middle Holocene.     

Stable isotope evidence for dietary and cultural change over the Holocene at the Sabana de Bogotá region,Northern South America

The Sabana de Bogotá in the northern Andes is an interesting region to investigate temporal patterns of dietary variation because it counts with a vast archeological and osteological record for the last 10,000 years. In this paper, stable isotope data of human archeological bone collagen and apatite were used to study the evolution of diet and major subsistence transformations taking place during the Holocene (～9000–600 cal BP). Paleoenvironmental reconstructions and the isotopic ecology of the Sabana de Bogotá were used as an interpretative baseline. Stable isotope measurements (δ¹³C_col, δ¹³C_ap, δ¹⁵N, and Δ¹³C_col-ap) representing hunter-gatherers, horticulturalists, and agriculturalists (N = 134 individuals) were analyzed by using bivariate, regressional, and discriminant statistical techniques. Results show that early Holocene hunter-gatherers (9000–7000 cal BP) consumed mostly C₃ vegetal resources locally available. In contrast, animal protein was less important. Middle Holocene hunter-gatherers (6000–4500 cal BP) continued with the food foraging pattern observed in the earlier counterparts and presented a slight increase in C₃ animal protein intake. During the initial late Holocene ca. 4000 cal BP, important shifts in subsistence strategies occurred when populations presented a trend toward mixed C₃/C₄ diets, and by ca. 3500 cal BP, there is a clear signal of C₄ crops (i.e., maize) consumption concomitant with the introduction of ceramic technology. During the final late Holocene (last 2000 cal years BP), intensive agriculture was adopted and humans presented relatively diverse diets integrated by C₄ and C₃ crops, C₃-C₄ feeding animals, and freshwater resources. Such dietary change coincides with an increase in sociopolitical complexity, population size, and a general decline in health.