arsuaga, j l & al -catalogo- 2-1408 (0308) impresion pendiente

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LETTERS The first hominin of Europe Eudald Carbonell 1 , Jose ´ M. Bermu ´dez de Castro 2 , Josep M. Pare ´s 2,3 , Alfredo Pe ´rez-Gonza ´lez 2,4 , Gloria Cuenca-Besco ´s 5 , Andreu Olle ´ 1 , Marina Mosquera 1 , Rosa Huguet 1 , Jan van der Made 6 , Antonio Rosas 6 , Robert Sala 1 , Josep Vallverdu ´ 1 , Nuria Garcı ´a 7,8 , Darryl E. Granger 9 , Marı ´a Martino ´n-Torres 2 , Xose ´ P. Rodrı ´ guez 1 , Greg M. Stock 3,10 , Josep M. Verge `s 1 , Ethel Allue ´ 1 , Francesc Burjachs 1,11 , Isabel Ca ´ceres 1 , Antoni Canals 1 , Alfonso Benito 4 , Carlos Dı ´ ez 12 , Marina Lozano 1 , Ana Mateos 2 , Marta Navazo 12 , Jesu ´s Rodrı ´ guez 2 , Jordi Rosell 1 & Juan L. Arsuaga 7,8 The earliest hominin occupation of Europe is one of the most debated topics in palaeoan thropol ogy. However, the purport- edly oldest of the Early Pleistocene sites in Eurasia lack precise age control and contain stone tools rather than human fossil remains 1–5 . Here we report the discovery of a human mandible associated with an assemblage of Mode 1 lithic tools and faunal remains bearing traces of hominin processing, in stratigraphic le vel TE9 at the site of the Sima del Elef ante, Atapu erc a, Spain 6–8 . Lev el TE9 has been dat ed to the Ear ly Pl eis toc ene (approxi mately 1.2–1.1 Myr), based on a combination of palaeo- magnet ism, cosmogenic nuclides and biostratigr aphy. The Sima del Elefan te site thus eme rges as the oldest , most accura tel y dated record of human occupation in Europe , to our knowledge . The study of the human mandible suggests that the first settle- ment of Western Europe could be related to an early demo- graph ic exp ans ion out of Af ric a. The new ev ide nce , wit h pre viou s finding s in othe r Atapuerca site s (le vel TD6 from Gran Dolina 9–13 ), also suggests that a speciation event occurred in this extreme area of the Eurasian continent during the Early Pleistocene, initiating the hominin lineage represented by the TE9 and TD6 hominins. The Sima del Elefante Site is located in the Sierra de Atapuerca, northern Spain, in the proximity of the well-known sites of Gran Dolina, Galerı ´a and Sima de los Huesos (Fig. 1a). All of them have  yielded hominin fossils attributed to the species Homo antecessor (approximately 0.8 Myr 9–13 ) in Gran Dolina and Homo heidelbergen- sis in Galerı ´a 14 and Sima de los Huesos 15–17 . The Si ma del Elefante site is a cave 18m deep and up to 15 m wide 6,7 , infilled with clastic deposits. The sedimentary sequence is forme d by 16 lit hos tra tig rap hic uni ts (Fi g. 1b)mos tly made by debris flow deposits. Entrance clast-supported debris flows correspond to proximal facies, whereas deposits with higher content of brown and reddish-bro wn cla ys (HU E 7.5 YR or 5YR) corres pond to dis talfacie s, derived from terra-rossa slope soils. We repor t on the pala eoant hrop ologi cal, archa eolog ical and palaeonto logic al record of level TE9, inclu ding geochr onolo gical and biostr ati gra phi c dat a at Sima del Ele fan te, whi ch tog eth er document the oldest-known site in Europe with hominin fossils and human activity. A fragment of hominin mandible and an isolated lower LP 4 of the same individual were recovered from square I-31 of the TE9C level. The mandible (ATE9-1) consists of the symphyseal region, a portion of the right corpus from P 3 to the alveolus of M 1 with an irregular broken surface, and the basal part of the left corpus from P 3 to the le ve l of M 1 /M 2 . Some tee th are prese rve d in si tu (Fig. 2 and Supplementary Information). The mental foramen is single on both sides and lies at the P 3 /P 4 interalveolar septum. On the preserved part of the corpus, a well- differentiated torus marginalis is present. Anteriorly, this torus ter- minates as a well-developed anterior marginal tubercle below the C/P 3 (Fig. 2a). In lateral view (Fig. 2c), there is a slight anterior mandibular incurvatio of the bone between the alveolar border and the base. Thus a modest mentum osseum is expressed. The mental trigone is represented by a faint bone elevation along the midline of the symphysis and a visible mental protuberance. No signs of lateral mental tubercles or mental fossae are present. In anterior view, the lower margin of the symphysis is arched bilaterally, forming a con- spicu ous incisura submenta lis. At the midline of the arch, a stron g and pointed interdigastric spine projects downwards between the two disgastric impressions, which are shallow but well defined, and placed at the basal part of the symphysis. On the internal surface of the symphysis, the alveolar planum exhibits a minimum inclination, andthe sup eri or tra nsv ers e tor us is abs ent . Howev er, on theright sid e a modest but clear alveolar prominence below P 3 –P 4 is observed. In superior view, the alveolar portion of the corpus tends to diverge to form a parabolic arc, being more open than in early African Homo specimens such as OH 13, KNM-ER 1802 and UR 501, or in the Dmanisi mandibles. The thickness of the corpus of ATE9-1 at the M 1 level is similar to that of ATD6-96 from Gran Dolina 12 and falls at the lower li mi t of the ra nge of the Af ri can Ea rl y and Mi ddle Pleistocene Homo specimens 18 . The height of the corpus of ATE9-1 at the P 3 /P 4 level is modest and far from the extreme values seen in many other Pleistocen e specimens such as those from Tighenif, Sangiran and D 2600 from Dmanisi (Table 1). The C, P 3 and P 4 exhibit single roots of Tomes’ root form (category 1R 19 ), with a groove along the mesiolingual root surface. The crown of LP 4 pre- sents an oval outline with a distolingual talonid, and the tip of the lingual cusp is mesial to the tip of the larger buccal cusp. 1 Institut Catala ` de Paleoecologia Humana i Evolucio ´ Social, A ` rea de Prehisto `ria, Universitat Rovira i Virgili, Plac ¸a Imperial Tarraco 1, 43005 Tarragona, Spain. 2 Centro Nacional de Investigacio ´n sobre Evolucio ´n Humana, Avenida de la Paz 28, 09004 Burgos, Spain. 3 Department of Geological Sciences, University of Michigan, 2534 CCL Building, Ann Arbor, Michigan 48109, USA. 4 Departamento de Geodina ´mica, Facultad de Ciencias Geolo ´gicas, Universidad Complutense de Madrid, 28040 Madrid, Spain. 5 A ´ rea de Paleontologı ´ a, Facu ltad deCiencias, Uni versid ad de Zarago za, c/ Pedro Cerb una, 12, 5000 9 Zaragoz a, Spai n. 6 Departamento de Paleobiologı ´ a, Museo Nacional de Ciencias Naturales, C.S.I.C., Jose ´ G. Abascal 2, 28006 Madrid, Spain. 7 Departamento de Paleontologı ´ a, Facultad de Ciencias Geolo ´gicas, Universidad Complutense de Madrid, 28040 Madrid, Spain. 8 Centro de Investigacio ´n (UCM-ISCIII) de Evolucio ´n y Comportamiento Humanos, c/ Sinesio Delgado, 4 (Pabello ´n 14), 28029 Madrid, Spain. 9 Department of Earth and Atmospheric Sciences, Purd ue Unive rsity , WestLafayett e, India na 4790 7, USA. 10 Yose mite Natio nal Park , 5083ForestaRoad, PO Box 700,El Porta l, Calif ornia95318,USA. 11 Institucio ´ Cat alan a deRecer ca i Estudis Avanc ¸ats, Pla c ¸a Imper ial T arraco 1, 43005 Tarrago na, Spa in. 12 Laboratorio de Prehistoria, Edificio I1D1i, Universidad de Burgos, Plaza Misael Ban ˜uelos s/n, 09001 Burgos, Spain. Vol 452 | 27 March 2008 | doi:10.1038/nature06815 465 Nature PublishingGroup ©2008

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