Cantabrian Region Research Articles

The Diachronic Construction of Paleolithic Cave Art: Striated Hind Heads of the Cantabrian Region

The Diachronic Construction of Paleolithic Cave Art: Striated Hind Heads of the Cantabrian Region

MIS5-MIS3 Neanderthal occupations at Amalda III cave (Northern Iberian Peninsula)

The arrival, occupation, and disappearance of Neanderthals in the Cantabrian region is the subject of a long-running debate that continues to this day. Knowledge of the evolution of Neanderthal societies since the end of the Middle Pleistocene in the north of the Iberian Peninsula is greatly impacted by the scarcity of a good chronological framework. This absence of good data creates difficulties in evaluating the cultural adaptations of these populations to environmental changes and their historical dynamics.The Amalda III cave, surveyed in 1983-84, contains a sequence of occupations ranging from the end of MIS5 (Levallois with Mousterian points and bifaces) to the beginning of MIS3 (Vasconian). It is possible to observe substantial changes in the environmental conditions and cultural responses of Neanderthal groups that inhabited the cave. Here we present the first results of the Amalda III sequence, which is currently being excavated by an interdisciplinary team.Our objective is to test, enrich and refine the regional environmental and Neanderthal cultural framework and the transformations that took place between the MIS5 and the MIS3. These new data are compared with the information available from several Middle Paleolithic sites in the region, advancing our understanding of the behavioural adaptations of Neanderthals to different ecological and socio-cultural situations between ca. 100 and 45 kyr BP in the Eastern Cantabrian region. In this way, we will be able to deepen our interpretation of the processes of cultural change of the last groups of Neanderthals that inhabited this region.

The controversial case of a coastal Mesolithic tool: A geometric approach to the analysis of the Asturian pick

The Mesolithic period along the coast of the Cantabrian Region (Spain), known as the “Asturian,” is distinguished by the presence of shell middens and a particular lithic tool, the Asturian pick. Despite the tool’s archaeological significance, its technological and functional aspects have not been fully understood, resulting in ambiguous interpretations of its morphological relationships and utilitarian purposes. Our research aims to quantify and analyse the technological processes that have influenced the Asturian pick's form and investigate the selection criteria governing its morphology and choice of raw materials. A novel aspect of our approach is the use of digital methods, including photogrammetry and three-dimensional geometric morphometric analysis. We analysed a sample of Asturian picks, compared against a control group of different elements and raw material specimens. The findings corroborate the homogeneity and standardisation of the Asturian pick's design and unveil regional shape variations that correspond with the distinct raw materials available in each locality.

Living in the shore: changes in coastal resource intensification during the Mesolithic in northern Iberia

Recent research on human exploitation of molluscs, echinoderms and crustaceans during the Mesolithic in the Cantabrian region (northern Iberia) has shown significant variability in the intensity of the use of coastal resources by the last hunter-fisher-gatherers throughout the ~ 4000-year expanse of the Mesolithic (10,700 – 6,700 cal BP). Previous studies have proposed hypotheses related to demographic changes to explain intensification events. In this paper we aim to unravel whether climatic and environmental changes, or other social factors, such as demography, were involved in the increase in the use of marine resources at certain times. We employed species representation, quantification and biometric analysis of the shell assemblages from the El Toral III archaeological site (Asturias, northern Iberia) to identify patterns in shell exploitation throughout the stratigraphic sequence. To establish the chronology and distinguish occupation phases of the site, we employed Bayesian modelling of radiocarbon measurements. Faunal results show that marine gastropods such as limpets of the Patella genus and topshells Phorcus lineatus (da Costa, 1778) were the most exploited species, while bivalves, echinoids and crustaceans were present in smaller quantities. The comparison of the results for El Toral III with other Mesolithic sites in the region reveals significant temporal differences in the intensity of collection of marine shell species. Results showed that intensification processes are not clearly related to climate change but to other social factors, such as demography, suggesting that intensification and relaxation in shell collection events were strategies adopted depending on the needs of the human groups at different times.

Revisiting macromammal exploitation in the Spanish Cantabrian region during the lower Magdalenian (ca. 20-17 ky cal BP)

Understanding the ways in which human groups use the environment for their survival is one of the main fields of study in Prehistory. Subsistence strategies, understood as the set of techniques, processes and activities through which human groups organise the tasks related to their survival, are a fundamental element for understanding the economic and sociocultural processes derived from these practices in the past. In this sense, archaeozoological and taphonomic studies are the main tool to reconstruct the ways in which our ancestors acquired, processed, consumed, and managed meat resources for their survival. In this research we examine the ways in which hunter-gatherer groups in the Spanish Cantabrian region exploited ungulates through a palaeoecological and palaeoeconomic analysis of a total of 32 archaeological levels at 19 sites dated between 20 and 17 ky cal BP. To this end, through research on faunal resources in this region, we will address the ways in which prey was acquired and transported, the age ranges, the seasonality of the captures and the nutritional energy contribution to the diet of the human groups, taking into account the cost of acquiring them, thus generating an updated view of subsistence strategies in the Cantabrian region.

Wounded Animals and Where to Find Them. The Symbolism of Hunting in Palaeolithic Art

Representations of wounded animals and humans in European Upper Palaeolithic art have traditionally been conceived as figures related to the hunting activities of hunter-gatherer societies. In this paper, we propose an analysis of Franco-Cantabrian figurative representations showing signs of violence between 35,000 and 13,000 cal. bp to qualify the interpretations of hunting and death in Palaeolithic art. To this end, both multivariate statistical analyses and hypothesis tests have been used to highlight the formal, thematic, chronological and regional similarities and differences in these types of artistic representations. The results show that wounded graphic units are mythograms coded by different variables that do not seem to reflect the actual hunting of the animal, but rather a more complex meaning. It was also discovered that, in early times, the artist preferred to wound secondary or less frequent animals, like deer. This changed in more recent times, when the main animals, such as bison, are wounded under greater normativity and homogeneity in the Pyrenees or the Cantabrian region.

Feet on the ground: Marine archaeomalacology resources during the Mesolithic-Neolithic transition in the Iberian Peninsula

The Iberian Peninsula is the ideal setting for the study of the use of marine resources in the Mesolithic and Neolithic periods. Previous studies have focused on specific geographical areas and on a single chronological period. Instead, we offer here a synthesis of the peninsula covering a broad period of time, thus allowing a study of the role of marine resources in the Neolithisation process. Published data on the exploitation of marine molluscs from 59 archaeological levels, close to the coast and dated between 10,400 and 4650 cal BP, in the Iberian Peninsula are reviewed in order to examine the change that occurred in the consumption of marine resources following the introduction of domestic plants and animals. The analysis of the composition and diversity of assemblages collected at each site has allowed us to identify specialisation in the management strategy of marine molluscs during the Neolithic. Regional variability in the diversity of species collected, particularly in the Cantabrian region, where there is continuity in the management of molluscs between the Mesolithic and Neolithic periods, could be linked to the pace at which agriculture and animal husbandry were adopted. In short, together with environmental factors, the establishment of farming practices may have had a slight impact on the specialisation in the management of coastal environments.

Alternation between humans and carnivores in the occupations of the Mousterian site of Sopeña rock-shelter (Asturias, Spain)

The Sopeña rock-shelter is a Palaeolithic site located in the northern slopes of the Cantabrian mountain range of northern Spain, facing the Bay of Biscay, in the Principality of Asturias. The shelter overlooks the Güeña River, which is a tributary to the Sella River. Excavations there yielded a long stratigraphic and archaeological sequence of episodes of human occupation, ranging from the later millennia of the Middle Palaeolithic -until the local disappearance of Neanderthals c. 42,630 ± 600 years ago, to the initial stages of the Upper Palaeolithic, which marks the local arrival of modern Homo sapiens sapiens, and an important Gravettian sequence. All the Sopeña levels yielded important accumulations of both lithic and faunal remains. The Mousterian appears, from top to bottom, in Sopeña levels XII, XIII, XIV, XV and XVI. Our study of the animal remains shows that at Level XV Neanderthal activity is very intense and responsible for the accumulation and modification of most of the bone remains (Yravedra et al., under review), while, as described below, this is not the case for levels XII, XIII and XIV, where carnivores were more involved in the accumulation and modification of animal remains. In this paper, we analyze the alternation between human and carnivore activity in the formation of the bone assemblages in the later Mousterian levels of Sopeña, on the eve of the arrival of anatomically modern humans in the Cantabrian region c. 40.000 years ago.

Towards a morpho-technical typology of Magdalenian barbed points in the Cantabrian Region: A statistical proposal

Magdalenian barbed points have been an enigma in prehistoric research since its beginnings. We still do not know their function, and no precise and updated typology defines these tools based on all their morphological characteristics. Throughout research history, numerous hypotheses about their use and taxonomic characterisation have been outlined, but the lack of microscopic, statistical, and experimental analyses, in addition to issues with the archaeological record, have prevented most of these uncertainties from being resolved.The present study addresses the state of the art and confronts the different existing hypotheses about the chronology and typology of these tools. A total of 106 barbed points from the Cantabrian region in the Iberian Peninsula were analysed morphometrically with an innovative 2D methodology, followed by multivariate statistical analysis to objectively characterize the morphology of the points. Based on these analyses, a new typology is proposed that corresponds to the main historiographical trend regarding the differentiation of this type of tool.

MAKING A DIFFERENCE: PALAEOLITHIC ICONOGRAPHY AS A TRAIT OF IDENTITY IN THE IBERIAN PENINSULA

SummaryThe study of the figurative repertoire of Palaeolithic artists allows us to approach aspects such as iconographic diffusion and cultural preferences. This paper presents an updated corpus of figurative rock art for the Iberian peninsula and analyses its distribution in the Cantabrian region, inland Iberia and the Mediterranean basin, three areas frequently used in the literature. This corpus contains 3341 graphic units that were analysed using multivariate statistics and hypothesis testing. The results show that the main figurative themes can be classified according to their discriminating power. Horse, ibex and deer were the animal motifs that formed the common background of this artistic expression. In contrast, Palaeolithic artists used different proportions of bison, hind and aurochs to create a possible distinctive identity. Finally, it is discussed whether the iconographic selection is due to palaeoecological reasons, cultural motivations, or a combination of both.

El impacto del envejecimiento poblacional sobre la evolución de la tasa de actividad en España

RationalePopulation ageing is one of the greatest structural challenges facing the Spanish economy. Foremost among its multiple effects is its contractionary impact on labour supply, which will foreseeably have major implications on both the functioning of the labour market and the potential growth or sustainability of public finances.Takeaways•Population ageing over the past decade has had an estimated negative impact of around 3.4 percentage points (pp) on Spain’s participation rate in 2022. This impact has been uneven by regions, with a sharper fall in the Cantabrian regions (Asturias, Cantabria and the Basque Country).•According to the latest National Statistics Institute’s population projections, the participation rate is set to drop a further 2.8 pp by 2030 owing to the continuing ageing process. Excluding the support of net immigration flows, the drop would be 1.6 pp greater.•In addition, the impact of ageing may deepen regional divergences, since the regions that have an older population and lower GDP per capita may be expected to experience the sharpest falls in the participation rate.

Bone weathering in an Atlantic environment: preliminary results of the Global Weathering Project in Spain

Weathering constitutes one of the most investigated taphonomic processes for understanding the formation of archaeological and palaeontological assemblages. Despite being studied for decades through numerous monitoring experiments, no homogeneous methodology exists to compare the results obtained in different regions and climates. Here, we present the protocols and the preliminary results of an experimental research started four years ago in a coastal and inland location within the Cantabrian Region (northern Spain) to assess the influence of the weathering process in an Atlantic climate. This experiment allows evaluation of the preservation of faunal assemblages in regional open-air sites throughout the Middle and Upper Palaeolithic. We conduct this experiment within the Global Weathering Project of the International Council for Archaeozoologists (ICAZ), an international network of archaeozoologists and taphonomists who coordinates the same experiment worldwide. The experiment planned to last 18 years consists on recording the weathering stages suffered on the cow ribs disposed on the surface of a fenced enclosure under the protection of a cage, separated from the soil by a neutral inorganic substrate and close to a weather station where the temperature, humidity, rainfall, wind and sun exposure values are daily recorded.

Coastal and Inland subsistence strategies during the Gravettian in the Cantabrian Region (northern Iberian Peninsula)

The Gravettian site of Fuente del Salín Cave is located in the northern Iberian Peninsula (Cantabrian Region, Spain). In 2016, excavations conducted at the site yielded numerous faunal remains, including mammals and fish. Researchers also recovered molluscs remains during the 1990, 1991, and 2000 campaigns. This study presents the results of the archaeozoological and taphonomical analyses of the large mammals and fish remains recovered during these excavations. At Fuente del Salín Cave, a high level of bone fragmentation and the presence of burning damage characterizes the faunal assemblage. Taxonomy of large game shows diverse habitat exploitation, such as coastal valleys and plains (red deer, Cervus elaphus; horse, Equus ferus) as well as rocky landscapes (Iberian ibex, Capra pyrenaica; and chamois, Rupicapra rupicapra). Additionally, fish remains show the presence of salmonids (Salmo sp.), cyprinids, and haddock (Melanogrammus aeglefinus), indicating the exploitation of coastal, demersal, and riverine species. The taphonomic analysis of the mammals revealed burning damage concentrated on axial elements and epiphyses, characterized by temperatures typical of carbonization or calcification. The scarcity of carnivore gnawing marks and the presence of butchering marks prove that humans were the main accumulators at Fuente del Salín Cave. Concerning fish, most remains correspond to spines, branchial spines, ribs, and vertebrae, indicating humans processed fish by removing these elements for consumption. Based on our results, Fuente del Salín Cave provides an essential record of the subsistence strategies of the inhabitants of the Cantabrian Region during the Gravettian.

Socioeconomic, Technological, and Cultural Adaptation of the Mesolithic Population in Central-Eastern Cantabria (Spain) in the Early and Middle Holocene

Abstract This article presents the research on the palaeoenvironmental changes that took place at the end of the Tardiglacial, in the early and middle Holocene, observed in sites of anthropic origin in central-eastern Cantabria. Through the comparative analysis of the economy, the settlement pattern, and the industries of the Azilian and Mesolithic settlements, we try to infer the repercussions they could have had on the last hunter-gatherers, in order to adapt to the modification of the territory, the change in the available resources, and the socio-economic consequences they could have had on the settlement. The radiocarbon record of central-eastern Cantabria and the Cantabrian region (Northern Spain) between 9.5 and 7.9 ka cal BP is analysed in order to assess the impact of the cold events that occurred in 9.3 and 8.2 ka cal BP, identified in the palaeoenvironment.

Scientific modelling can be accessible, interoperable and user friendly: A case study for pasture and livestock modelling in Spain.

This article describes the adaptation of a non-spatial model of pastureland dynamics, including vegetation life cycle, livestock management and nitrogen cycle, for use in a spatially explicit and modular modelling platform (k.LAB) dedicated to make data and models more interoperable. The aim is to showcase to the social-ecological modelling community the delivery of an existing, monolithic model, into a more modular, transparent and accessible approach to potential end users, regional managers, farmers and other stakeholders. This also allows better usability and adaptability of the model beyond its originally intended geographical scope (the Cantabrian Region in the North of Spain). The original code base (written in R in 1,491 lines of code divided into 13 files) combines several algorithms drawn from the literature in an opaque fashion due to lack of modularity, non-semantic variable naming and implicit assumptions. The spatiotemporal rewrite is structured around a set of 10 namespaces called PaL (Pasture and Livestock), which includes 198 interoperable and independent models. The end user chooses the spatial and temporal context of the analysis through an intuitive web-based user interface called k.Explorer. Each model can be called individually or in conjunction with the others, by querying any PaL-related concepts in a search bar. A scientific dataflow and a provenance diagram are produced in conjunction with the model results for full transparency. We argue that this work demonstrates key steps needed to create more Findable, Accessible, Interoperable and Reusable (FAIR) models beyond the selected example. This is particularly essential in environments as complex as agricultural systems, where multidisciplinary knowledge needs to be integrated across diverse spatial and temporal scales in order to understand complex and changing problems.

The challenge of relating the Kasimovian to west European chronostratigraphy: a critical review of the Cantabrian and Barruelian substages of the Stephanian Stage

Abstract For the west European regional chronostratigraphic framework, the Cantabrian substage was conceived as covering a widely apparent stratigraphic gap between the top of the Westphalian and the base of Stephanian A, the lowest unit of the Stephanian. A continuous depositional history covers this time gap in the Cantabrian region of Spain; the upper limit of this interval was defined by the succeeding Barruelian substage, equivalent to Stephanian A. Intense tectonic and magmatic activity characterizes this period; the Iberian orogenic belt was an essentially linear feature buckled through the Late Pennsylvanian into the tightly folded Cantabrian Orocline. This evidences an extensive southern foreland to the Variscides, in which the coal-swamp biome persisted through the Late Pennsylvanian, supporting biostratigraphical correlation with the Donbass. New high precision U–Pb CA-ID-TIMS radiometric dating of tonstein horizons supports a preliminary time-framework of regional substages: base of the Asturian (proposed, ex-Westphalian D) c. 310.7 Ma; base of the Cantabrian c. 307.5 Ma; base of the Barruelian (ex-Stephanian A) c. 304.9 Ma; base of the Saberian (proposed) c. 303.5 Ma. The Cantabrian and Barruelian embrace the entire Kasimovian of the global time-scale, and the top of the Barruelian is essentially coincident with the base of the Gzhelian.

Reassessing palaeoenvironmental conditions during the Middle to Upper Palaeolithic transition in the Cantabrian region (Southwestern Europe)

Climatic and environmental changes have been commonly proposed as driving factors behind the decline of Neanderthals in Europe. The Cantabrian region, in northern Iberia, is a key area for understanding the replacement of Neanderthals by Anatomically Modern Humans, where an early disappearance of Neanderthals in relation to other areas of Iberia has been proposed. To evaluate how climate might have influenced human behaviour during Marine Isotope Stage 3, an accurate review of palaeoecological conditions is required. For the first time, an assessment of the regional available terrestrial proxies linked to archaeo-palaeontological sites, including small vertebrate assemblages, pollen sequences, charcoal data and stable isotope studies on macromammals is undertaken in this region. In addition, records from macrofaunal assemblages and glacial records have also been considered. To standardise the information and allow inter-site comparison, data from pollen and small vertebrate sequences were transformed into quantitative climatic estimations of temperature and precipitation. Results show highly variable climatic shifts between archaeological levels, being consistent with the climatic fluctuations observed in the marine and ice core records. Small mammal assemblages reveal a mosaic landscape of open meadows followed by scattered forested areas. A progressive trend towards aridity from the end of the Mousterian to the early Aurignacian is reflected by changes in arboreal pollen, macromammal species and stable isotopes evidence on ungulates consumed by late Neanderthals and Anatomically Modern Humans in the region. This review suggests a decrease in temperatures and rainfall from 48,000 to 44,000 cal BP (after Heinrich Event 5) which coincides with the late Neanderthals in the region and followed by a populational hiatus until 43,000 cal BP. Despite the multiple intra-site environmental proxies available, this study challenges the fragmentary regional record during this key period for human evolution and reveals that further research is needed to obtain a complete regional high-resolution palaeoenvironmental and palaeoclimatic reconstruction.

Genetic survey extension of the threatened Iberian Arnica montana L. revealed the presence of divergent plastid lineages and highly structured populations in northern Spain

Iberian populations of Arnica montana L. (Asteraceae) represent a valuable resource both for conservation and pharmaceutical industry. Previous genetic analyses pointed out the presence of different genetic groups, but a wide region is still genetically unexplored. In order to fill this scientific gap, the present study analysed a wider sampling area along the northern Iberian Peninsula. Nuclear (i.e. microsatellite loci) and plastid DNA (cpDNA) molecular markers were used to assess the levels of genetic diversity and the population structure in 16 locations, eight analysed for the first time in the present study and eight representative of the different genetic groups previously identified. The two divergent cpDNA groups previously described were found, but their distribution was extended and refined. Thus, one of the groups (suggested as ancestral) was predominantly distributed in adjacent zones of the Cantabrian coasts while the other (more related to Central-European populations) was predominant in inner Cantabrian regions and Pyrenees. Genetic diversity with microsatellite loci (He = 0.280) was in accordance with the figures previously described, with a high level of population differentiation (FST > 0.500) identifying the presence of up to five population genetic units. Genetic and geographical distances were not related (no isolation-by-distance pattern identified), suggesting an important effect of genetic drift. Finally, due to the conservation and evolutionary interest of the populations analysed, different management actions useful for the maintenance of wild A. montana resources are provided.

New insights into the use and circulation of reindeer antler in northern Iberia during the Magdalenian (ca. 21-13 cal ka BP)

Interactions between prehistoric foragers and reindeer at the end of the Pleistocene are still poorly documented in northern Iberia, particularly the reasons and means by which their antlers were collected, processed and circulated. Here we review the main osseous industries dated to between 21 and 13 cal ka BP, focusing on the use and circulation of reindeer antler as a raw material for the production of weapons and tools by Magdalenian foragers. Thirty-six reindeer antler artefacts were identified from 11 Iberian sites that are located at either end of the Pyrenees: the Cantabrian region to the west, and to a lesser extent, in Catalonia to the east. Despite biases in the identification of production objectives (end-products), a detailed techno-typological, chronological and geographical analysis of these assemblages reveals both the existence of a consistent reindeer antler industry in northern Iberia and long-distance connections between the Cantabrian region and the Pyrenees. The integration of contemporary macrofaunal data makes it possible to explore the extension of the reindeer's ecological niche in northern Iberia, as well as strategies for the acquisition and circulation of reindeer antler in the peninsula. Assuming that some reindeer assemblages result from the import of raw materials to supply manufacturing activities, we propose a scenario where the acquisition of reindeer antlers may have been organised at a local scale in the Basque region, and potentially in the neighbouring territories of Navarre, Cantabria and Asturias. On the other hand, in Catalonia, the combination of both faunal and technological data supports the hypothesis that reindeer antlers were imported (along with pelts) over longer distances, probably from the northern Pyrenees.

Surf and turf. Animal resources in the human diet in Cantabrian Spain during the Mesolithic (11.5 – 7.5 Ky cal. BP)

The beginning of the Holocene involved a series of climatic and environmental changes that affected the ways of life of the last hunter-gatherers. In the case of the Spanish Cantabrian region, these changes transformed the material culture and the way human groups interacted with the environment and, therefore, the subsistence strategies of the end of the Upper Pleistocene. In terms of the use of faunal resources, this period was characterised by an increase in the exploitation of coastal resources, mainly molluscs, but also crustaceans and echinoderms, which make up the so-called “shell middens”, while at the same time the percentage of macromammals was reduced and animals considered to have a “low energy range” were introduced into the diet. In this paper we assess the role played by each of these animal resources in the subsistence of Mesolithic human groups, determining their nutritional contribution and establishing a prey ranking based on the caloric intake of each resource. For this purpose, we collected archaeofaunal data from 14 sites from recent archaeological excavations with levels dated between ca. 11.5 and 7.5 ky cal BP in which the consumption of vertebrates and invertebrates is documented. At each of these sites we analysed diversity, homogeneity and species richness using Simpson's and Shannon's indexes, as well as the effective numbers of species for terrestrial and coastal resources, assessing the relationship between the two. With the palaeoecological and palaeoeconomic data from these archaeological sites (most of them located in caves), we estimate the weight that the different animal resources consumed by the last hunter-gatherer communities of the Cantabrian region had in their diet.