A new paper titled «A chrono-cultural reassessment of the levels VI–XIV from El Cuco rock-shelter: A new sequence for the Late Middle Paleolithic in the Cantabrian region (northern Iberia)» has been published in Quaternary International (Gutierrez-Zugasti et al. 2017). In this work, we propose a new chrono-cultural attribution for the lower part of El Cuco’s archeological sequence, which is now attributed to the Middle Paleolithic. This change demanded a new lecture of the entire site, which nowadays is the first site in the Bay of Biscay, atributed to neandertals, with clear evidence of marine resource consumption. Also, the new sequence is relevant to understand the end of the Middle Paleolithic in the region.
El Cuco rock-shelter is located on the north coast of Spain, in the coastal village of Castro Urdiales. In 2005 the site was excavated under the direction of P. Rasines and a sequence of 2.5 m deep, composed of 14 levels, was revealed (Muñoz et al. 2007). Initially, levels VI to XIV were attributed to the Evolved Aurignacian mostly because level XIII was dated to ca. 30,000 BP.
Recently the entire sequence has been reassessed, the new dates obtained from carbonate samples of Patella vulgata remains, have dated level X to ca. 43,000 BP, and level XIII to ca. 46.000 BP. These dates were contradictory with the attribution to the Evolved Aurignacian, and for this reason, we conducted a reanalysis of the level VII’s lithic assemblage. This analysis revealed a clearly Mousterian industry characterized by the use of Levallois technology, with a special incidence of small Levallois cores and flakes. These technological features were similar to those described at Axlor or Amalda (Rios-Garaizar et al. 2015), and are typical from the Late Mousterian of the Cantabrian Region (Rios-Garaizar 2017). Similar features have been also identified in levels VIII-XIII assemblages.

Level VII lithic assemblage (Gutierrez-Zugasti et al. 2017)
One of the most interesting conclusions of this new analysis is that shell assemblages are quite rich in levels X, XI and XII (Gutiérrez-Zugasti et al., 2013). Two of the most represented species, limpets (Patella) and sea urchin (Paracentrotus lividus), were brought to the site and consumed there by neandertals, representing the first clear evidence of marine resource exploitation in the Bay of Biscay. Probably, the absence of this kind of evidence in this region is due to the scarcity of caves and rock shelters with preserved Middle Paleolithic deposits located close to the current coastline. In fact, El Cuco is one of the closest sites (<500 m), and there, specifically, we find clear evidence of shellfish consume.
References:
Gutiérrez-Zugasti, I., Cuenca-Solana, D., Rasines del Río, P., Muñoz, E., Santamaría, S., Morlote, J.M., 2013. The role of shellfish in hunter–gatherer societies during the Early Upper Palaeolithic: A view from El Cuco rockshelter, northern Spain. Journal of Anthropological Archaeology 32, 242–256. doi:10.1016/j.jaa.2013.03.001
Gutierrez-Zugasti, I., Rios-Garaizar, J., Marín-Arroyo, A.B., Rasines, P., Maroto, J., Jones, J., Bailey, G.N., Richards, M., (2017) A chrono-cultural reassessment of the levels VI-XIV from El Cuco rock-shelter: a new sequence for the Late Middle Paleolithic in the Cantabrian Region (northern Iberia). Quatenary International. https://doi.org/10.1016/j.quaint.2017.06.059
Muñoz, E., Rasines, P., Santamaría, S., Morlote, J.M., 2007. Estudio arqueológico del Abrigo del Cuco, in: Muñoz, E., Montes, R. (Eds.), Interveciones Arqueológicas En Castro Urdiales. Tomo III. Arqueología Y Arte Rupestre Paleolítico En Las Cavidades de El Cuco O Sobera Y La Lastrilla. Excmo. Ayuntamiento de Castro Urdiales, Concejalía de Medioambiente y Patrimonio Arqueológico., Santander, pp. 15–160.
Rios-Garaizar, J., Eixea, A., Villaverde, V., 2015. Ramification of lithic production and the search of small tools in Iberian Peninsula Middle Paleolithic. Quaternary International 361, 188–199. doi:10.1016/j.quaint.2014.07.025
Rios-Garaizar, J., 2017. A new chronological and technological synthesis for Late Middle Paleolithic of the Eastern Cantabrian Region. Quaternary International 433, Part, 50–63. doi:10.1016/j.quaint.2016.02.020
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