Evidence Of Human Activity Research Articles

Mangrove dynamics driven by Late Holocene drought at Laguna Bacalar, Mexico

Laguna Bacalar, one of Mexico's most significant near-coast lakes, remains underexplored in the context of its Late Holocene paleoecology. A 2,40 m long core was retrieved in northern Laguna Bacalar. Palynological and geochemical proxies were isolated and analyzed. Our findings reveal the intricate paleoecological dynamics and hydrodynamic shifts of this vital area in southeastern Mexico. Climate and ecological changes delineate three pivotal phases during the Late Holocene at Laguna Bacalar: (i) a period between 3600 and 3250 cal BP mirroring current climatic conditions with seasonal dry tropical forest and mangroves as the dominant vegetation and evidence of human activities indicated by the presence of fossil maize pollen, (ii) a relatively arid phase from 3250 to 2600 cal BP, influenced by heightened ENSO-driven precipitation variability and sea level rise favoring an estuarine environment at Laguna Bacalar, and (iii) a period between 2600 and 2200 cal BP, exhibiting hydrological conditions akin to contemporary conditions with wetland forest mangrove vegetation. These data ultimately underscore the region's susceptibility to regional climatic fluctuations and ecological resilience, providing a case study from which to predict future conditions and establish modern conservation policy for Laguna Bacalar and similar environments.

Testing the presence of cereal-type pollen grains in coastal pre-Elm Decline peat deposits: Fine-resolution palynology at Roudsea Wood, Cumbria, UK

By the time of the Mid-Holocene Ulmus pollen decline (UD) ca. 5100 14C bp (ca. 5900 cal. BP), the Neolithic was becoming well established in Britain and Ireland. The importance of cereal cultivation as part of the initial neolithization process in the British Isles is uncertain, as archaeological sites of the first Neolithic remain elusive. Palaeoecologists have recorded cereal-type pollen grains in peat deposits that pre-date the UD significantly, but as some wild grasses can produce pollen that closely resembles cereal pollen grains, these early pollen records are not trusted as evidence of cereal cultivation. Some of these wild grass taxa grow in coastal wetland environments, making cereal-type pollen from such locations particularly open to question. This study uses fine-resolution palynology through a sequence of coastal hydroseral deposits that contain no evidence of human activity, to look for the presence of wild grass pollen of cereal size and morphology. Our results show that while such grains are not recorded at 1 cm resolution, at contiguous 2 mm resolution sampling sporadic occurrences of large grass pollen of possible cereal-type, resembling Hordeum, were detected. Morphology suggests that these cereal-type grains are of wild grass origin, almost certainly Glyceria, but their presence suggests that high-resolution analyses of coastal zone sediments will often discover cereal-type grains. Great care must be taken in identifying cereal-type pollen in coastal palaeo-wetland sediments, and rigorous identification protocols should be applied. Where grains could still be of cultivated cereal-type, the presence of other disturbance indicators is an important factor in inferring their origin.

Paleoenvironmental changes in the eastern Kumtag Desert, northwestern China since the late Pleistocene

AbstractSedimentary records from the Kumtag (also known as Kumtagh) Desert (KMD) in northwestern China are investigated to better understand Late Quaternary paleoenvironmental changes in this hyper-arid region. Presented here are the results of probably the first systematic survey of sedimentary sequences from the KMD, with the chronology determined by the optically stimulated luminescence dating. The variation of sedimentary facies, supported by granular and geochemical paleoenvironmental proxies, is used to decipher the history of Late Quaternary environment changes. The results demonstrate that a constantly dry condition characterized the eastern KMD since the last glacial maximum, but with occurrences of wetter periods. From ca. 17 to 15 ka, fluvial activity was probably triggered by melting of glaciers in mountains located south of the KMD. A distinctly drier stage (ca. 13–7 ka) was recognized due to the prominent occurrence of aeolian sands. A wetter environment likely persisted between ca. 4.4 and 2.2 ka, consistent with evidence of human activities. While the causes of paleoenvironmental changes in the eastern KMD are still a matter of debate, the melting of glaciers in the Altyn-Tagh Mountains in the south must be considered as an important factor.

New evidence on prehistoric settlement in Song Toyapakeh, an underwater cave in Nusa Penida, Bali

Song Toyapakeh is a submerged cave located on Nusa Penida Island, Bali, at a depth of 16m below sea level. The cave is believed to have been inhabited by human during the late Pleistocene period, as evidenced by the large numbers of bones from Cervidae and Elephantoid families, as well as turtles, that are scattered throughout the cave. The presence of these bones raises questions about the past use of Song Toyapakeh by humans and the transformation of the island's landscape into a submerged cave. The objective of this study is to address the function of Song Toyapakeh during the late Pleistocene period, based on the animal bones found within. To accomplish this, data were collected using scuba method to record the morphology of the cave and to take samples of the animal bones that were likely used by human in the past. Macroscopic and microscopic observations were then conducted on the cut marks and burn marks present on the bones to identify evidence of human use. In addition, paleogeographical and paleoclimatological data were examined to understand the landscape transformation of the cave. The analysis of the bones revealed traces of trimming and burn marks, indicating that the bones were used as tools and as food source by humans. Changes in the landscape caused by fluctuations in the sea level due to climate change during the Pleistocene period are believed to be responsible for the transformation of the cave from an area located above sea level to one that is now submerged. The evidence of human activity on the faunal remains found in Song Toyapakeh provides strong evidence of the use of the cave as human occupation during the late Pleistocene period.

Archaeological explorations at ‘En Qobi in the Jerusalem Highlands and the identification of Qube/Qubi

The article presents the results of archaeological excavations and surveys undertaken at and near the spring of ‘En Qobi. ‘En Qobi is a spring in the upper reaches of Nahal Qobi, a tributary of Nahal Refai’m, West of Jerusalem. There is evidence of human activity near the spring from the Bronze Age to the present – a span of approximately 3,000 years. The article presents and discusses (a) the spring and its water system; (b) partial excavations and the preservation of the interior of the medieval church located near the spring; (c) H. Tasit and a nearby refuge cave, both located west of the spring; (d) H. Qobi, situated east of the spring. Our team cleaned the water system, which consists of a long spring tunnel, a large underground reservoir, an open pool and other elements typical of systems used to tap spring water in the Judean Hills. This system was apparently built in the Early Roman period, was renovated again and again and remained in use until recent times. The medieval church has a rectangular nave, oriented east-west with well-preserved ashlar walls. The inner walls were covered with polychrome frescoes. Elbow columns topped with capitals, characteristic of Frankish (Crusader) architecture in the Jerusalem area, were found in situ on the northern and eastern walls. Our funds permitted only a partial excavation of some portions of the inner walls. Inadequate funding prevented a full excavation of the church walls and floors, so the construction phases of the structure were not fully clarified. H. Tasit is a relatively small site, apparently an agricultural estate from the Roman and Byzantine periods. Unfortunately, the site was looted extensively in the past. On the nearby slope we detected and explored a small karstic cave that was apparently used for refuge purposes in the first – second centuries CE. H. Qobi is a small, ruined village located on a prominent hilltop above the spring. Without extensive excavation it is difficult to ascertain its function and past. An underground olive press and some looted tombs on the slopes were explored. Pottery and finds from the Late Hellenistic, Early Roman, Byzantine, Medieval, Ottoman and British Mandate periods were collected. ‘En Qobi has been identified as Qobi, a location near Bethar mentioned in a story in the Babylonian Talmud (Sanhedrin 95a) and in additional Roman-period, late antique and medieval sources. The article describes the sites and discusses their historical-geographical significance and identification.

Farming stimulated stronger chemical weathering in South China since 3.0 ka BP

Anthropogenic impacts on weathering processes in the late Holocene have been widely demonstrated in recent studies, but the mechanism by which enhanced chemical weathering is linked to human activity remains unclear. In this study, we present a comprehensive reconstruction of sediment provenance, chemical weathering, vegetation type and evidence of human activity in core ZK20 in the estuary of the Pearl River during the last 7 ka to investigate the interactions of weathering, climate, and human activity. Evidence from major elements and clay minerals indicates an abrupt increase in chemical weathering intensity since ∼3.0 cal ka BP. This result cannot be explained by changes in provenance, climate or other natural factors but agrees well with the stronger human activity, confirming the significance of anthropogenic impacts on silicate weathering. The nearly synchronous increase in C4 plant abundance since 3.0 ka BP, as reflected by the sediment records from the upper reach and river mouth of the Pearl River, implies that the intensified weathering signal was mainly derived from contemporaneous minerals alteration (less than millennium timescale) rather than reworked old soils. We propose that the varied weathering conditions in response to agricultural activity and vegetation change intensified the alteration degree of minerals. The farming-induced biogeochemical effects, such as the releasing of acids, regulation of hydrology and uptake of cations, played a significant role in intensifying chemical weathering. This study highlights the importance of farming-related biogeochemical effects, which have been largely neglected in previous studies, in the process of chemical weathering.

Použití plněných adheziv pro doplňování nestabilní archeologické keramiky

USE OF FILLED ADHESIVES FOR FILLS ON UNSTABLE ARCHAEOLOGICAL CERAMICS Archaeological ceramic finds are often the only evidence of human activities in prehistoric cultures. At the time of its origin, prehistoric ceramic was made from natural raw materials coming from the immediate surroundings, and the firing conditions generally did not usually exceed 800 °C. Such ceramic shards contain a relatively low content of the glassy phase, the remains of clay minerals (so-called metaclays), and have relatively high open porosity. After use and subsequent storage in moist soil, the ceramic shards undergo an ageing process and become unstable, i. e. their flexural strength decreases, and they evolve into brittle and crumble shards. All these aspects must be taken into account during conservation-restoration interventions. Especially when choosing a fill, it is necessary to use materials that will not lead to the loss of the original ceramic body. The submitted article focuses on evaluation of different types of fill materials considered for filling unstable ceramics: gypsum, alabaster plaster, modelling plasters, adhesives (K 498, Lascaux 498 HV, Duvilax BD 20) filled with inorganic (marble dust, aluminium oxide, potassium feldspar, Korest silikat, glass flakes, raw glaze) or organic fill materials (Tylose MH 300, Tylose MH 6000, Arbocell BC 200, Arbocell BC 1000).The selected combination of fill materials was used for real conservation interventions during the formation of fills on archaeological finds of unstable ceramics: a mixture of cellulose (Arbocel BC 1000) and dispersion K 498 was applied during the restoration of the Jordanów culture container and Efkoker plaster was used to fill the losses on a large-volume container of the Bylany culture.

Cingulata of the Abismo Ponta de Flecha Cave (Pleistocene-Holocene), Ribeira de Iguape Valley, southeastern Brazil

The Ribeira de Iguape Valley, located in southeastern Brazil, is an important karstic region, presenting a large number of caves containing fossil and subfossil vertebrate materials. The Abismo Ponta de Flecha Cave is a complex vertical cave divided into galleries where a large amount of osteological material was collected. The cave acted as a natural trap for several taxa and possibly as a disposal site for ancient human communities. Osteoderms and appendicular bones assigned to two genera of Cingulata were identified in the faunal assemblage. The most abundant bone material belongs to the family Chlamyphoridae, genus Cabassous, represented by the living species C. tatouay and by remains of a larger, but little-known species, cf. C. antiquus. The other identified genus belongs to the family Dasypodidae: Dasypus sp. Evidence of human activity was characterized in only one C. tatouay bone, while the other specimens were considered as being of natural origin. Keywords: Quaternary, Chlamyphoridae, Dasypus, Cabassous, taxonomy.

Los Villares locality (Ruidera, Castilla-La Mancha, Spain): a new Middle Pleistocene fossil assemblage from the Southern Iberian Plateau with possible evidence of human activity

We present the discovery of a Middle Pleistocene fossil assemblage at Los Villares (Ruidera, Ciudad Real, Castilla-La Mancha), which has possible evidence of associated human activity. The potential of the site has been evaluated through multidisciplinary research including taxonomy, anatomy, deep learning, and direct dating of fossil remains. A surface study carried out in 2017, over a very limited area (2 m2) on the slope of one of the Ruidera lakes led to the discovery of more than 50 fossil specimens, including cranial (mainly teeth) and postcranial remains. This rich assemblage is dominated by the remains of Caprinae, although the presence of some small or medium carnivore remains also stands out. The identification of a cut mark, tested with Convolutional Neural Networks, suggests the presence of human activity within the bone assemblage. Several fossils were directly dated using a multi-technique approach involving radiocarbon, U-Th, and ESR methods. The results constrain the fossil assemblage to between 300 ka and 400 ka, positioning Los Villares as one of the first Middle Pleistocene localities identified in the Upper Guadiana basin, on the Southern edge of the Southern Iberian Plateau. These promising initial results show the great potential of the site to contribute to filling a gap of knowledge in the Pleistocene archaeo-paleontological record of the Iberian Peninsula. Nevertheless, we also acknowledge the need for systematic excavations in the future, not only to obtain a better idea of the lateral and stratigraphic extension of the fossil assemblage and its complete taxonomic composition but to confirm the human presence at the site.

Holocene history of the landscape at the biogeographical and cultural crossroads between Central and Eastern Europe (Western Podillia, Ukraine)

Continentality is a globally significant gradient influencing broad-scale biogeographical patterns. An excellent example is the transition from the European temperate forest biome to the continental steppe and forest-steppe of Eurasia. One of the biogeographic crossroads where the two biomes meet is the Western Podillia in the western part of Ukraine. It is known for its rich biodiversity with a mixture of steppe, forest and montane species, despite a relatively humid climate suitable for closed-canopy forests. Biologists have postulated the refugial character of the local steppes, but a modern paleoecological reconstruction of the environmental history of the region has been lacking. We fill this gap here with a multi-proxy study (pollen, plant and mollusc macrofossils, microcharcoal, geochemistry) of two profiles sampled in calcareous fens adjacent to species-rich steppe grasslands. To link the reconstructed environmental history with the history of human settlement, we compiled available archaeological records from the studied region. Together, the analyzed profiles cover the entire Holocene and the end of the Last Glacial period, as shown by high-quality age-depth models. All studied proxies support the hypothesis that an open or semi-open landscape existed in Western Podillia during the Holocene. The complete absence of wood remains in Holocene sediments, and the persistence of fen specialists showed the exceptional long-term stability of open wetlands. The continuous presence of pollen of light-demanding plants, low abundance of closed-canopy trees compared to open-canopy trees, and stable concentrations of geochemical indicators of erosion suggest a semi-open landscape with a mosaic of forests, steppe grasslands, and other open habitats. Multivariate analysis revealed the similarity of pollen assemblages with sites in the forest-steppe zone at the interface between the Pannonian Basin and the Western Carpathians. The continuous presence of non-woody microcharcoal in high abundance suggests a role of fire in maintaining open habitats, and the archaeological record provides evidence of human activity throughout the Holocene near the study sites. Comparison with modern pollen spectra suggests that the landscape was probably somewhat more forested in the past than today, but rather by open-canopy trees. Our results indicate that Western Podillia has become a biogeographic crossroads not only because of its location on the border between Central and Eastern Europe, but also because of the unusual combination of relatively humid climate and continuity of open or semi-open landscapes since the Last Glacial.

Lost bioscapes: Floristic and arthropod diversity coincident with 12th century Polynesian settlement, Nuku Hiva, Marquesas Islands.

Knowledge of biodiversity in the past, and the timing, nature, and drivers of human-induced ecological change, is important for gaining deep time perspectives and for modern conservation efforts. The Marquesas Islands (Polynesia) are one of the world’s most remote archipelagos and illustrate the vulnerability of indigenous bioscapes to anthropogenic activities. Characterised by high levels of endemism across many biotic groups, the full spectrum of the group’s flora and fauna is nonetheless incompletely known. Several centuries of Polynesian settlement reshaped biotic communities in ways that are not yet fully understood, and historically-introduced mammalian herbivores have devastated the indigenous lowland flora. We report here on archaeological recovery of a diverse assemblage of plant and arthropod subfossils from a waterlogged deposit on the largest Marquesan island: Nuku Hiva. These materials offer new perspectives on the composition of lowland plant and arthropod communities pene-contemporaneous with human arrival. Bayesian analysis of multiple 14C results from short-lived materials date the assemblages to the mid-12th century AD (1129–1212 cal. AD, 95.4% HPD). Evidence for human activities in the catchment coincident with deposit formation includes Polynesian associated arthropods, microcharcoal, and an adzed timber. Plant macrofossils (seeds, fruits, vegetative structures) and microfossils (pollen, phytoliths) reveal coastal and lowland wet-moist forest communities unlike those observed today. Several apparently extinct taxa are identified, along with extant taxa currently constrained to high altitude and/or interior areas. A diverse inventory of subfossil arthropods—the first pre-18th century records for the islands—includes more than 100 distinct taxa, with several new archipelago records and one previously unreported for eastern Polynesia. The assemblages provide new insights into lowland Marquesan forest communities coincident with human arrival, and portend the considerable anthropogenic transformations that followed. These records also have implications for human colonisation of the Marquesas Islands and East Polynesia at large.

Environmental change and the timing of the settlement of the Bronze Age Andronovo culture, in far northwest Xinjiang, China

The relationships between societal and environmental changes have long attracted strong interest amongst scientists. Each of these systems has their own internal dynamics such as the adaptability and social systems built by people; and the feedbacks and controls on environmental systems. North west Xinjiang presents a challenging topographic and climate setting for people. Yet existing evidence shows Bronze Age populations settled into the Bortala Valley as early as the third millennium BCE. The harshness of the region provides a test case for exploring how environmental changes and societal changes may have intertwined. Near the town of Wenquan there is an extensive wetland which contains a sedimentary record covering the last 10,400 years. The early to mid-Holocene is marked by desert and a lake at Wenquan, but there is little evidence for human activity. By 4500 cal year BP the climate became more humid and soon peak humidity occurred when a regional steppe was developed and small numbers of trees were present on the mountains, also the lake shallowed to become a marsh and peatland. The uplands saw a slight increase in tree cover after this, probably as a result of moisture increase due to some cooling. Later changes in the archaeological record seem to be independent of the timing of any environmental changes, and human impacts on the wetland were small until historical times. In short, the major change from desert to steppe may have enabled people to settle the region, but later changes in the environment were too small to be revealed in the Wenquan sediment data, with the adaptability of societies overcoming any environmental challenges and with land-use practices being too small or localized to impact the palaeoenvironmental record.

The history of settlement and agrarian land use in a boreal forest in V\xe4rmland, Sweden, new evidence from pollen analysis

Shielings are the historically known form of transhumance in Scandinavia, where livestock were moved from the farmstead to sites in the outlands for summer grazing. Pollen analysis has provided a valuable insight into the history of shielings. This paper presents a vegetation reconstruction and archaeological survey from the shieling Kårebolssätern in northern Värmland, western Sweden, a renovated shieling that is still operating today. The first evidence of human activities in the area near Kårebolssätern are Hordeum- and Cannabis-type pollen grains occurring from ca. 100 bc. Further signs of human impact are charcoal and sporadic occurrences of apophyte pollen from ca. ad 250 and pollen indicating opening of the canopy ca. ad 570, probably a result of modification of the forest for grazing. A decrease in land use is seen between ad 1000 and 1250, possibly in response to a shift in emphasis towards large scale commodity production in the outlands. Emphasis on bloomery iron production and pitfall hunting may have caused a shift from agrarian shieling activity. The clearest changes in the pollen assemblage indicating grazing and cultivation occur from the mid-thirteenth century, coinciding with wetter climate at the beginning of the Little Ice Age. The earliest occurrences of anthropochores in the record predate those of other shieling sites in Sweden. The pollen analysis reveals evidence of land use that predates the results of the archaeological survey. The study highlights how pollen analysis can reveal vegetation changes where early archaeological remains are obscure.

State of the art of historical archaeology in Argentina

SUMMARY: Historical archaeology can be defined as the specialty that deals with the recent human past, in America’s case, since the arrival of the Europeans to the continent, through the material evidence of human activities and other sources of information. Works carried out within this scope deal with multiple topics and from different theoretical perspectives. Many epistemological debates have taken place on the definition of historical archaeology and the use of different sources of information. Conceptualizations should not be imposed uncritically, as local processes vary greatly. The topics developed in Argentina during the last 25 years reflect its maturity in the country and the diversity of problems that can be studied by this field of knowledge.

Early Marine Isotope Stage 5 sea levels, coastal dune palaeoenvironments, and human occupation on the southeast coast of South Africa

Quaternary-age human and animal footprints have been reported from coastal deposits along the South African coast. These footprints and their sedimentary contexts can inform on Quaternary palaeoenvironments and processes stratigraphically associated with the palaeoanthropological record of past human occupation in the coastal zone, and exploitation of its resources. This study examines the palaeoenvironmental context and sedimentology of Marine Isotope Stage 5 aeolianite at Nahoon Point, southeastern coast of South Africa, where preserved human footprints have been previously recorded. This study identifies seven sedimentary facies from 20 logged profiles through the coastal aeolianite in order to develop a landscape-scale stratigraphic framework for coastal palaeoenvironmental reconstruction during the period of the MIS 5 highstand. Two phases of aeolianite deposition are identified, which bracket a single stepped sea-level transgression phase up to +7.82 ± 0.82 m asl, evidenced by intraformational beachrock facies and marine benches. This correlates with the second known global MIS 5e highstand; no evidence for the first highstand reported from the literature was found in the study area. Aeolianite bed geometries and sedimentary structures indicate that wind regimes and rainfall seasonality were similar to present. Newly discovered faunal tracks in aeolianites of the first depositional phase suggest the presence of unidentified bovids of varying sizes. Evidence for human activity is preserved in all three recorded depositional phases, suggesting people were present throughout the early MIS 5 sequence despite changing environmental conditions. This evidence suggests that human occupation of coastal areas, and the exploitation of marine food resources was more widespread than generally thought in southern Africa during early MIS 5.

The Late Quaternary pollen sequence of Toll Cave, a palaeontological site with evidence of human activities in northeastern Spain

Palynological investigations of Toll Cave, a carnivore and archaeological cave site in northeastern Spain, are presented. The inferred vegetation reveals the long-term permanence of mixed pine-oak forests through a long period of environmental changes within the interval MIS 4 to MIS 1, and probably before. A relatively high diversity of woody taxa is found, including conifers, mesophytic angiosperms, Mediterranean forest, and xerothermic scrub. The most outstanding findings include the abundance of Pinus, evergreen Quercus, and Juniperus; the continuous occurrences of deciduous Quercus, Acer, Castanea, Betula, Fraxinus, Buxus, Olea, Salix, and Erica, and the presence of Abies, Taxus, Carpinus betulus, Tilia, Populus, Celtis, Juglans, Ulmus, Calicotome, Cistus, Ephedra fragilis, Myrtus, Pistacia, Rhamnus and Viburnum. Together with the pollen record of the nearby Teixoneres Cave, this new data suggest the existence of woodland refugia during the coldest and most arid stages of the upper Pleistocene across this relatively high-latitude region within the Iberian Peninsula. This study also supports the occurrence of forest ecosystems within the Mediterranean-Eurosiberian ecotone of the Iberian Peninsula in the vicinity of Homo habitats, including Neanderthals.

The Pre-Clovis Peoples

Scholars have long debated the timing and route by which humans first arrived in the New World. In “Late Upper Paleolithic Occupation at Cooper’s Ferry, Idaho, USA, ~16,000 Years Ago,” published in Science, Loren Davis et al. used radiocarbon dating to establish a chronology for artifacts, and evidence of human activity, that has pushed migration 2,800 years earlier than previously thought.

Identifying the accidental‐natural mortality of leporids in the archaeological record: insights from a taphonomical analysis of a pitfall without evidence of human presence

ABSTRACTLeporids (Lagomorpha, Mammalia), especially the mountain hare (Lepus timidus) and the European rabbit (Oryctolagus cuniculus), have been among the most abundant small game in western Europe since the Pleistocene. These animals are preferred prey for more than 40 predators, which increases the chances of finding their skeletal remains at archaeological or natural sites, and in particular karstic formations alternately occupied by Palaeolithic human societies and other predators. Moreover, specific eco‐ethological characteristics for both species also offer the possibility to produce a substantial quantity of their bones accumulated by natural mortality without predation, making it more difficult to identify their origin in the fossil record. Despite this fact, the taphonomic signature of accidental‐natural accumulations of leporids in karsts, such as pitfalls, has never been properly characterised. In order to address these issues, we carried out a detailed taphonomic study of leporid remains in a pitfall without any evidence of human activity, namely at Coulet des Roches (Monieux, Vaucluse, south‐eastern France). At this site, leporids are the most abundant species throughout the Last Glacial Maximum sedimentary sequence. The bone accumulation was analysed in order to determine the most relevant criteria to identify a natural accumulation that results from the accidental fall of individuals in the pitfall. The relative proportions of each species are consistent with their current ethology, and their mortality profiles are compatible with the structure of a living natural population. The completeness rate of the different skeletal portions for both species is relatively high, bones are less fragmented and, unlike what might be expected, very few anatomical connections were preserved. The observed anatomical representation, breakage, and bone surface modification patterns are discussed and compared with available data concerning accumulations with predation. Taken together, the identified criteria contribute valuable help in the recognition of accidental mortality in the fossil record, as well as to evaluate the proportion of leporid bones accumulated naturally and those accumulated by predation, human or not, in a deposit.

Macromammal and bird assemblages across the late Middle to Upper Palaeolithic transition in Italy: an extended zooarchaeological review

Evidence of human activities during the Middle to Upper Palaeolithic transition is well represented from rock-shelters, caves and open-air sites across Italy. Over the past decade, both the revision of taphonomic processes affecting archaeological faunal assemblages and new zooarchaeological studies have allowed archaeologists to better understand subsistence strategies and cultural behaviors attributed to groups of Neandertal and modern humans living in the region.This work presents the preliminary results of a 5-years research programme (ERC n. 724046 – SUCCESS) and offers a state-of-the-art synthesis of archaeological faunal assemblages including mammals and birds uncovered in Italy between 50 and 35 ky ago. The present data were recovered in primary Late Mousterian, Uluzzian, and Protoaurignacian stratigraphic contexts from Northern Italy (Grotta di Fumane, Riparo del Broion, Grotta Maggiore di San Bernardino, Grotta del Rio Secco, Riparo Bombrini), and Southern Italy (Grotta di Castelcivita, Grotta della Cala, Grotta del Cavallo, and Riparo l'Oscurusciuto). The available Number of Identified Specimens (NISP) is analysed through intra- and inter-site comparisons at a regional scale, while aoristic analysis is applied to the sequence documented at Grotta di Fumane. Results of qualitative comparisons suggest an increase in the number of hunted taxa since the end of the Middle Palaeolithic, and a marked change in ecological settings beginning with the Protoaurignacian, with a shift to lower temperatures and humidity. The distribution of carnivore remains and taphonomic analyses hint at a possible change in faunal exploitation and butchering processing between the Middle and Upper Palaeolithic. A preliminary comparison between bone frequencies and the distribution of burned bones poses interesting questions concerning the management of fire. Eventually, the combined use of relative taxonomic abundance and aoristic analysis explicitly addresses time averaging and temporal uncertainty embedded in NISP counts and offers estimates of absolute change over time that can be used to support hypotheses emerging from taxon relative frequencies.

The early occupation of America

Archaeology The Cooper's Ferry archaeological site in western North America has provided evidence for the pattern and time course of the early peopling of the Americas. Davis et al. describe new evidence of human activity from this site, including stemmed projectile points. Radiocarbon dating and Bayesian analysis indicate an age between 16,560 and 15,280 years before present. Humans therefore arrived in the Americas before an inland ice-free corridor had opened, so a Pacific coastal route was the probable entry route. The stemmed projectile points closely resemble those found in Upper Paleolithic Japan, also supporting the hypothesis of a coastal route. Science , this issue p. [891][1] [1]: /lookup/doi/10.1126/science.aax9830