M. Eulàlia Subirà

Sex assessment on the basis of long bone circumference

Discriminant functions have long been used to classify individuals into groups according to the dimensions of their bones. Although lengths, widths, and diameters have been extensively used, the circumferences have not been adequately validated. In this work, the importance that the circumferences of long bones can have in assigning the sex of ancient human remains is demonstrated. The functions produced by using just one circumference achieved accuracies higher than 80%, and circumference at the radial tuberosity of the radius is able to classify 92.8% of skeletons from the Late Roman site of Mas Rimbau/Mas Mallol (Spain). When functions are produced by using more than one circumference, they can achieve the uppermost classification attained in this sample. The functions also showed that the arm circumference functions are more useful than those of the leg, probably because male individuals of the population had greater mechanical stress than did females. The classification percentages, as well as other statistical values for the functions, demonstrated the great ability of long bone circumferences in helping to classify the sex of individuals of other sites of the Mediterranean area besides the ones examined in this study.

Palaeodiets of Humans and Fauna at the Spanish Mesolithic Site of El Collado

The first human stable isotope results from the Spanish Levant, from the Mesolithic (ca. 7500 BP, Mesolithic IIIA phase) site of El Collado (near Oliva, Valencia) provide evidence for the consumption of marine protein by humans, estimated at approximately 25% of the dietary protein for some individuals. Isotopic analysis of human remains from other coastal Mesolithic sites in Europe, particularly along the Atlantic coast, also shows significant consumption of marine foods, but the amount of marine food consumed by the El Collado humans was much less than at those sites. This may be because of a different dietary adaptation or because the Mediterranean is much less productive than the Atlantic.

The emergence of Mesolithic cemeteries in SW Europe: Insights from the El Collado (Oliva, Valencia, Spain) radiocarbon record

Located on the Iberian Mediterranean coast, El Collado is an open-air site where a rescue excavation was conducted over two seasons in 1987 and 1988. The archaeological work excavated a surface area of 143m2 where 14 burials were discovered, providing skeletal remains from 15 individuals. We have obtained AMS dates for 10 of the 15 individuals by means of the direct dating of human bones. The ranges of the probability distribution of the calibrated dates suggest that the cemetery was used during a long period of time (781–1020 years at a probability of 95.4%). The new dates consequently set back the chrono-cultural attribution of the cemetery from the initial proposal of Late Mesolithic to an older date in the Early Mesolithic. Therefore, El Collado becomes the oldest known cemetery in the Iberian Peninsula, earlier than the numerous Mesolithic funerary contexts documented on the Atlantic façade such as the Portuguese shell-middens in the Muge and Sado Estuaries or the funerary sites on the northern Iberian coast.

First insight into the Neolithic subsistence economy in the north-east Iberian Peninsula: paleodietary reconstruction through stable isotopes.

OBJECTIVES The study of subsistence strategies among Neolithic communities in north-east Iberia, late-fifth to early-fourth millennia cal BC, enables a more in-depth study of the activities and behavior of the inhabitants of this region, where paleodiets have been little studied. The objectives of this study are, therefore, to determine the diet and subsistence patterns of those communities and to consider whether any relation existed between their subsistence strategies and environmental, geographic, and/or social factors. MATERIALS AND METHODS Bone samples from 25 middle Neolithic human individuals at seven archeological sites and comparative faunal samples were analyzed, and compared with contemporary series in Mediterranean Europe. Carbon and nitrogen isotope ratios (δ13 C and δ15 N) of bone collagen were studied to determine the dietary patterns. RESULTS Dietary habits proved to be similar between communities, apart from some interpopulational variations in subsistence strategies. Their diet was based on C3 terrestrial resources with a major vegetal protein component. DISCUSSION The reported variations in interpopulational subsistence strategies among the compared Mediterranean societies do not seem to be directly related to the settlement region. Together with archeological data, this indicates the influence of socioeconomic factors in the Neolithic human diet. A general tendency toward a lesser use of aquatic resources is seen in this period in Iberia and the rest of the Mediterranean, as also documented for contemporary communities in the west and north of Europe. The data obtained will be important for further studies of socioeconomic patterns in European Neolithic societies.

The Neolithic in Northeast Iberia: Chronocultural Phases and 14C

This paper is the result of the research project “Aproximacion a las primeras comunidades neoliticas del NE peninsular a traves de sus practicas funerarias,” HAR2011-23149. F Xavier Oms’ work is supported by the 2014SGR-108 (Generalitat de Catalunya) and HAR2011-26193 (Ministerio de Ciencia e Innovacion) projects. Berta Morell has been supported by an FI (Generalitat de Catalunya) predoctoral grant.

Human diet and the chronology of neolithic societies in the north-east of the Iberian Peninsula: the necropolises of Puig d’en Roca and Can Gelats (Girona, Spain)

Radiocarbon and palaeodiet information has been obtained for two Neolithic necropolises in the north-east of the Iberian Peninsula: Puig d’en Roca and Can Gelats (Girona, Spain). Although Puig d’en Roca is one of the most important necropolises in this period, it is also one of the least known as, following its excavation in the 1950s and 1960s, it has scarcely been restudied archaeologically. Can Gelats is one of the latest funerary sites of this period to be excavated and therefore is little known to the scientific community. Two key issues in the study of Neolithic communities in the western Mediterranean are addressed here. Few radiocarbon determinations have been obtained at funerary sites and they have usually been applied to a very small number of individuals in each cemetery (one or two dates). In a similar way, palaeodiet analysis of Neolithic cemeteries has rarely been attempted, and therefore the information presented here is of great importance to understand the diet in those societies. This paper presents a new series of dates for two of the most important Neolithic necropolises in north-east Iberia and approaches the subsistence patterns of the populations buried there.

Prehistoric funerary complexity in northern Iberia studied by using dental morphology

During the Neolithic Age and afterwards, several funerary practices coexisted in the northeast of the Iberian Peninsula from the Mediterranean to the Atlantic. According to archaeological data, there was a coexistence of sepulchral caves and megalithic monuments at the end of the Neolithic, following the dominance of open-air pit burials during the Middle Neolithic. The aim of this work is to analyze the biological relationships between individuals representing those cultures, based on their dental morphology - the first such attempt. This study presents data of 156 individuals from this period, and will allow elucidate the population dynamics including the role of migrations and other factors. The results indicate that there were no significant differences between the groups living in Atlantic and Mediterranean areas. Moreover, pairwise comparisons for each trait only show two significant results. This lack of differences could be related to trade activities between the two basins, which would contribute to individual exchanges between groups. Furthermore, according to biological affinities, trade activities along the Mediterranean Sea had a more marked influence over the Catalan populations than those from the Atlantic basin. There are no biological differences between groups representing the open-air pit culture and the sepulchral caves in each area. Finally, the megalithic groups from the Atlantic basin differ the most from the surrounding populations. This could be indicative of a slightly different biological origin of the people related to this culture.