Programmes > Par auteur > Ivorra Jérôme

The function of Manuports in late Lower Pleistocene sites: a case study from Unit US2 of the Bois-de-Riquet site (Lézignan-la-Cèbe, France).
Louis De Weyer  1, 2@  , Jérôme Ivorra  3@  , Cyril Viallet  4@  , Deborah Barsky  5@  , Joseba Rios-Garaizar  6@  , Felipe Cuartero  7@  , Patricia Bello-Alonso  6@  , Laurence Bourguignon  2, 8, *@  
1 : Sun Yat Sen University [Guangdong, China]  (SYSU)  -  Site web
135 Xingang W Rd, Haizhu, Guangzhou, Guangdong, China -  Chine
2 : Archéologies et Sciences de lÁntiquité  (ArScAn AnTET)  -  Site web
Université Paris Nanterre, Centre National de la Recherche Scientifique : UMR7041
Maison René Ginouvès Boîte 3 21, allée de lúniversité 92023 NANTERRE CEDEX -  France
3 : Société de Protection de la Nature  (SPN)
16 Rue de la Foire, 34120 Pézenas. -  France
4 : Histoire naturelle de l\'Homme préhistorique  (HNHP)  -  Site web
Museum National d'Histoire Naturelle, Université de Perpignan Via Domitia, Centre National de la Recherche Scientifique : UMR7194
Institut de Paléontologie Humaine 1, rue René Panhard 75013 Paris -  France
5 : Institut Català de Paleoecologia Humana i Evolució Social  (IPHES)
Zona Educacional 4, Campus Sescelades URV (Edifici W3), 43007 Tarragona -  Espagne
6 : Centro Nacional de Investigacion para le Evolucion Humana  (CENIEH)
Paseo Sierra de Atapuerca, 3, 09002 Burgos -  Espagne
7 : Fundacion Atapuerca
Carretera de Logroño, Km 44, Ibeas de Juarros, 09198, Burgos -  Espagne
8 : Institut National de Recherches Archeologiques Preventives  (INRAP)  -  Site web
Institut national de recherches archéologiques préventives : GSOCampagne
7, rue de Madrid75008 Paris -  France
* : Auteur correspondant

In archeological record for the late Lower Pleistocene, manuports often represent a high proportion of the stone tool assemblages. Examples from well-known sites in Eurasia, such as; Olduvai Gorge Beds I and II, Dmanisi or Hummal, underline the significance of these items. Yet these materials are usually only summarily mentioned and their analysis is generally occulted by the, more thoroughly studies knapped materials.

Archeostratigraphic Unit 2 (US2) of the Bois-de-Riquet site provides a good opportunity to evaluate the importance of imported materials for understanding hominin activities and interactions with carnivores. A few basalt cores and flakes were uncovered from the excavation, along with some rounded basalt nodules imported to the site.

The relative abundance of manuports in the BDR-US2 assemblage raises issues pertaining to their significance: where do they originate from? Which characteristics were involved in their selection? What were they used for? Were the nodules used in relation with carcass consumption, with stone knapping, or with both of these activities? Finally, how might we integrate the Bois-de-Riquet US2 site into the European late Lower Pleistocene record?

In order to address these issues, different kinds of analyses were carried out. Dimensional and morphological analyses were performed in order to identify the selective process and compare it with natural, historical and other Oldowan contexts.

Also, techno-functional analyses were carried out to identify percussion marks and breakage in order to better understand how these nodules could have been used. Accordingly, the spherical nodules and blocks used for flake production were compared and show a clear distinction from the selection process.

The imported nodules in Bois-de-Riquet are then part of the technical toolkit, along with the basalt flakes used for obtaining meat from bones in which some cutmarks were identified. They could have been used as percussive tools for bone breaking as well as throwing objects used to put the carnivores out.

The assemblage from Bois-de-Riquet US2 provides valuable information for understanding stone knapping stigma on basalt nodules, as well as a methodological reflection on the analysis of manuports. It is also an exceptional early example of hominin-carnivore interaction  in a Mediterranean late Lower Pleistocene environment.

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