9 results
Search Results
2. Les Néandertaliens d’El Sidrón (Asturies, Espagne). Actualisation d’un nouvel échantillon
- Author
-
Rosas, Antonio, Estalrrich, Almudena, García-Tabernero, Antonio, Bastir, Markus, García-Vargas, Samuel, Sánchez-Meseguer, Andrea, Huguet, Rosa, Lalueza-Fox, Carles, Peña-Melián, Ángel, Kranioti, Elena F., Santamaría, David, de la Rasilla, Marco, and Fortea, Javier
- Subjects
- *
NEANDERTHALS , *PALEOLITHIC Period , *HYOID bone , *BONES , *FOOT anatomy ,HAND anatomy - Abstract
Abstract: This paper synthesizes and updates the information coming from the El Sidrón (Asturias, Northern Spain) neandertal site. Since 2000, a new sample of Homo neanderthalensis dated to at least 49,000years old is being systematically recovered at the El Sidrón cave site. The bone assemblage is located in a secondary position, and certainly derives from a close location. The sample is almost exclusively composed of human remains. There is a moderate number of Middle Paleolithic stone tools (n ≈415) and very few macro-faunal remains. All skeletal parts are preserved, including some rare bones such as the hyoid bone. Teeth are abundant (n =213), cranial and postcranial remains are also well represented, but fragmentary, with a special presence of foot and hand bones. A minimum number of thirteen individuals has been identified, comprising different developmental stages from infancy to adulthood: one infant, two juveniles, three adolescents, and seven adults. Paleobiology of the El Sidrón humans fits the pattern found in other neandertal samples: a high incidence of dental hypoplasia and interproximal grooves, yet no serious traumatic lesions are present. Moreover, unambiguous evidence of human-induced modifications (cannibalism) was found on the human remains: cut marks, percussion pitting, conchoidal scars and adhering flakes. Individuals seem to have been treated differentially. Morphologically, the El Sidrón humans show a large number of neandertal lineage-derived features even though certain traits place the sample at the limits of neandertal variation. Integrating the El Sidrón human mandibles and occipital bones into the larger neandertal sample reveals a possible geographic patterning, with southern Neandertals showing broader faces with increased lower facial heights. Ancient DNA analyses have been carried out, developing an anti-contamination protocol of excavation for minimizing the risk of modern human DNA contamination. As a result both mitochondrial and nuclear DNA have been extracted from dental and osteological remains. Curiously, mtDNA comparative analyses suggest a population affinity of Iberian Peninsula Neandertals with Central European Neandertals. Nuclear DNA analyses have permitted the identification of some functional genes such as the melanocortin 1 receptor (MC1R), which regulates hair and skin pigmentation; the FOXP2, a gene involved in the development of language; and the gene involved in the ABO blood group system. Nowadays the large El Sidrón sample is the most significant neandertal sample from the Iberian Peninsula, and augments the European evolutionary lineage fossil record, supporting ecogeographical variability across neandertal populations. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
3. SUR UN THÉORÈME DE GÉOMÉTRIE SPHÉRIQUE: THÉODOSE, MÉNÉLAÜS, IBN ˓ IRĀQ ET IBN HŪD.
- Author
-
RASHED, ROSHDI and AL-HOUJAIRI, MOHAMAD
- Subjects
- *
ENCYCLOPEDIAS & dictionaries , *MATHEMATICIANS , *GEOMETRY - Abstract
In his encyclopedic book (al-Istikmāl), the mathematician of Saragossa, Ibn Hūd (d. 1085/478 H.), established by an intrinsic demonstration of spherical geometry, a remarkable theorem which generalizes the proposition III.11 from Theodosius's Spherics and integrates the propositions III.23-25 from Menelaus's Spherics. In this paper, we study this theorem and the demonstration of Ibn Hūd. The reader will find also some established and translated texts (Ibn Hūd, Ibn Irāq, al-Ṭūsī) addressing the same theme. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
4. L’Aurignacien archaïque de la grotte El Castillo (Espagne) : caractérisation technologique et typologique
- Author
-
Maíllo-Fernández, José Manuel and de Quirós, Federico Bernaldo
- Subjects
- *
AURIGNACIAN culture , *TECHNOLOGY , *STONE implements , *PALEOLITHIC Period , *MICROBLADES ,CASTILLO Cave (Spain) - Abstract
Abstract: In this paper, we present the techno-typological study of level 16 of El Castillo cave (Archaic Aurignacian). In this level, we can identify an important bladelet production from schémas opératoires of unipolar prismatic cores, carinated endscraper and carinated burins types. Besides, we find a specific production of Discoid conception. The retouched blanks, though scanty, are dominated by the Dufour bladelets. Level 16 is in relation with the Archaic Aurignacian at the Cantabrian Iberia, which is present in sites like Cueva Morín, Labeko Koba, Gatzarria, or Isturitz and it also is in relation with the Mediterranean Archaic Aurignacian. Finally, we analyse the different hypotheses about the Initial Upper Paleolithic origin in Europe. The mosaic hypothesis is acceptable for us. [Copyright &y& Elsevier]
- Published
- 2010
- Full Text
- View/download PDF
5. Première mise en évidence fossile du chioglosse portugais Chioglossa lusitanica (Amphibia, Caudata) et son implication pour l’histoire biogéographique de l’espèce
- Author
-
Blain, Hugues-Alexandre, López-García, Juan Manuel, Cuenca-Bescós, Gloria, Alonso, Carmelo, Vaquero, Manuel, and Alonso, Susana
- Subjects
- *
CHIOGLOSSA lusitanica , *FOSSIL amphibia , *SALAMANDERS , *BIOGEOGRAPHY , *SPECIES - Abstract
Abstract: Although ongoing, excavations at the Valdavara-1 cave (Galicia, northwestern Spain) have already yielded a rich and highly diverse terrestrial small vertebrate assemblage. Among the findings, two precaudal vertebrae from the Holocene level (with a radiocarbon age of 4490±40 years BP) are attributed to the golden-striped salamander (Chioglossa lusitanica) and constitute the first fossil evidence for this species. Because of the poor intraspecific genetic diversity of living Spanish populations it has been proposed that they have a recent origin linked with a postglacial expansion from southern refuges. The palaeontological data presented in this paper thus show that the northernmost expansion of the species took place at least as early as the Chalcolithic period and permit the estimation of its dispersion speed within its potential distribution area. [Copyright &y& Elsevier]
- Published
- 2009
- Full Text
- View/download PDF
6. Étude analytique d’une clavicule complète de subadulte d’Homo antecessor (site de Gran Dolina, Sierra d’Atapuerca, Burgos, Espagne)
- Author
-
García-González, Rebeca, Carretero, José Miguel, Rodríguez, Laura, Gómez-Olivencia, Asier, Arsuaga, Juan Luis, Castro, José María Bermúdez de, Carbonell, Eudald, Martínez, Ignacio, and Lorenzo, Carlos
- Subjects
- *
ARCHAEOLOGICAL human remains , *CLAVICLE , *INFANTS -- Anthropometry , *PLEISTOCENE paleogeography , *HISTORIC sites ,GRAN Dolina Site (Spain) - Abstract
Abstract: This study reports on the skeletal remains of an infant clavicle – specimen ATD6-37 – belonging to the Homo antecessor species, unearthed at Lower Pleistocene level TD6 of the Gran Dolina site (Sierra de Atapuerca). Studied alongside a further adult specimen – ATD6-50 –, they provide us with significant information on two key paleobiological aspects of these early humans: body shape and development. Based on the analytical results, the paper proposes a more accurate proportional method for determining age at death is applied to the fossilized infant clavicle under study. It goes on to hypothesize on postcranial growth and body shape and discusses morphological patterns and age at death of these early humans through comparisons with a wide range of infant dental samples and clavicular specimens in early and modern humans. [Copyright &y& Elsevier]
- Published
- 2009
- Full Text
- View/download PDF
7. La variabilité graphique du Molí del Salt (Vimbodí, Catalogne, Espagne) et l'art mobilier de la fin du Paléolithique supérieur à l'est de la Péninsule Ibérique
- Author
-
García Díez, Marcos and Vaquero, Manuel
- Subjects
- *
SPANISH art , *PALEOLITHIC Period - Abstract
Abstract: The Upper Paleolithic of Catalonia has been so far characterized by a very weak presence of artistic representations. This scarcity was especially surprising if we take into account the huge number of discoveries from other zones of the Iberian Peninsula (Valencia, the Cantabrian region). In this paper we present four objects of portable art found at the Molí del Salt site (Vimbodí, Conca de Barberà, Tarragona). Below a mesolithic layer, dated to 8 ka BP, there is an Upper Magdalenian sequence with several dates between 10.8 and 12.5 ka BP. These magdalenian levels have yielded four plaques of schist with engravings, including several animal figurines and one human representations. Once the objects are described, we will place them in the context of the portable art from the Late Upper Paleolithic of Mediterranean Spain. From these data, the chronocultural successions based on the Upper Magdalenian–Microlaminar Epipaleolithic distinction will be discussed. [Copyright &y& Elsevier]
- Published
- 2006
- Full Text
- View/download PDF
8. Lithic raw material procurement in the Lower and Middle Sites of the Sierra de Atapuerca, Burgos (Spain)
- Author
-
García-Antón Trassierra, Maria Dolores, Morant Sabater, Núria, and Mallol Duque, Carolina
- Subjects
- *
RAW materials , *INDUSTRIAL procurement - Abstract
This paper summarizes the latest studies on lithic raw material raising that are currently undertaken within the Sierra de Atapuerca research project. During the past two years, several works have provided new petrographical and technological data, contributing to the knowledge of the kinds of materials exploited by the Atapuerca hominids, as well as the areas where those materials were raised. The sites yielding this information are Gran Dolina (Lower and Middle Pleistocene) and Galeria (Middle Pleistocene), both located in the Trinchera del Ferrocarril archeopaleontological complex. [Copyright &y& Elsevier]
- Published
- 2002
9. Les clôtures de Ceuta et de Melilla Une frontière européenne multidimensionnelle.
- Author
-
Saddiki, Said
- Subjects
- *
FENCES , *INTERNATIONAL economic relations - Abstract
Fences of Ceuta and Melilla are an appropriate model to study to what extent governments could harmonize between stated purposes and hidden objectives. Although Spanish government has constantly stated that fences of the two enclaves aim only to stop irregular migration, comprehensive view of various aspects of the issue leads us to conclude the existence of other objectives behind this policy. Spain's policy of fencing the two enclaves' borders reflects a contradictory process in the region. While Mediterranean sphere has witnessed during the last two decades an increasing number of cultural and economic cooperation projects, new real and virtual walls have been built in the region to achieve "Fortress Europe". The paper tries, first, to show the controversial aspects of Ceuta and Melilla fences as the de facto EU southern border. Second, it aims to highlight the changing roles of the two enclaves'fences. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.