Manuei Santonja the Iberian Peninsula
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Luis Raposo 1 The earliest occupation of Europe: Manuei Santonja the Iberian peninsula A review of the Iberian evidence demonstrates that the the lack of solid dating evidence (sites in the Portuguese oldest traces ofhuman occupation date from the earlier littoral and the Cadiz region), or because of doubts relating part of the Middle Pleistocene. Though rare, the oldest to the artificial character of the finds (the Guadix-Baza lithic industries appear in all important river valleys of the sites), or because the few and isolated lithic artefacts found Continental interior. Larger assemblages already contain in the interior of the Iberian peninsula will have to be Acheulean bifaces, implying that the idea of an Iberian disregarded (Santonja and Querol 1982) as they are pre-Acheulean industrial ('pebble-culture') stage must be insufficiënt evidence to support a hypothesis. In our present treated with caution. state of knowledge, it can be argued that the most ancient palaeolithic sites in Iberia can be dated to the beginning of 1. Introduction the Middle Pleistocene. No sound evidence supports older In the last two decades, it has become common practice dates (Santonja and Villa 1990; Aguirre 1991; Rolland (o poslulale the existence of archaic lithic industries in the 1992; Carbonell Roura 1992). Iberian peninsula, documenting an ancient human Severe limitations exist for the chronologica] framework occupation. These ideas were partially due to the of the Middle Pleistocene in Iberia, and sites are often conception of an original Iberian Acheulean ("meridional difficult to date accurately within that period. With the Acheulean", F. Bordes 1971), presumably related to the exception of Atapuerca and Bolomor, these sites are all North African Acheulean, and based on the occurrence of open-air localities and mostly related to fluvial sequences. a high percentage of cleavers (Alimen 1975) and on the Their chronological position is mainly determined by abundant use of quartzite as raw material. These ideas were relative criteria. Absolute dating evidence for the initial considerably slrenghtened as a consequence of the impact Middle Pleistocene (prior to OIS 9) is only available from caused in Iberia by Biberson's work in the 1960s in the site of Atapuerca (Burgos) and the Guadalquivir Morocco, where he claimed to have defined a "civilisation terraces. Two projects are presently in progress in order to du galet aménagé" (Biberson 1961), older than the obtain more absolute dates: one is concerned with such Acheulean and apparently very similar to the Pebble classic and important sites as Torralba and Ambrona Industries reported in the Portuguese littoral since the 1940s (Soria), Bolomor (Valencia) and Cuesta de la Bajada (Breuil and Zbyszewski 1942-45). (Teruel), the other is directed towards the open-air sites The later discovery of some identical finds, i.e. pebble located in the Spanish sector of the Tagus basin. tools, in the higher terraces of the Guadalquivir river Nevertheless, when the Middle Pleistocene sites of Iberia (Bordes and Viguier 1971) and, more importantly, the are studied in detail, they may provide evidence for placing identification (Bordes and Thibault 1977) and subsequent them in a relative temporal sequence and it might thus be excavation (Querol and Santonja 1983) of the site of El possible to differentiate between different major moments Aculadero in the littoral near Cadiz, contributed to the within that time-period. Even with these scarce data it recognition (or at least to the positive expectation) of an might be possible to order the sites chronologically for the archaic human occupation in the Iberian peninsula: an entire Middle Pleistocene, from its initial phases onwards. occupation dating back to the Early Pleistocene, culturally defined as pre-Acheulean. Reeently, the same idea has been 2. Towards a relative chronology reinforced by the discoveries in the Guadix-Baza depression The sequences of terraces known in detail, mainly from of a small fragment of an occipital bone, supposedly human the Iberian Continental interior, give us the most complete (Gibert 1985; Vega Toscano 1989), as well as of some data presently available for placing the lithic industries in a lithic artefacts (Carbonell et al. 1982). chronological order. In addition, factors such as faunal Today, however, it is widely believed that none of these associations, pedologic characteristics of the soils and some finds can be accepted as proof of such antiquity because of morphostratigraphic particularities of each area, can also bc 8 THE EARLIEST OCCUPATION OF EUROPE used for a correlation between different fluvial valleys INITIAL MIDDLE PLEISTOCENE (prior to OIS 13): and/or distinct ten-aces levels. faunal associations of the Hence the knowledge of the different terrace systems - "C" group: Mimomys savini with Pitymys gregaloides constitutes one of the most important elements in the and Pliomys episcopalis, together with evolved Mammuthus chronologica] order of the palaeolithic sites. In general, it meridionalis and, at the end of this time-period, can bc said that the present Iberian hydrographic systems Mammuthus trogontherii, Dicerorhinus hemitoechus, Bison began to be formed after the deposition of the Villa- schoetensacki voigstedtensis, different Cervidae, such as franchian high detritic surfaces ("ranas"), dated to 2.5/2 Megaceros, Dama clactoniana and Cervus elaphus. Myr BP (Pérez Gonzaïez 1982 and 1982a; Molina 1991). Documented in sites such as Atapuerca TD-3 to TD-6, Therefore, the highest river terraces in each major Iberian Huéscar 1 and Cueva del Congosto. river can be attributed to the beginning of the Pleistocene. From that moment on a sedimentary process began, LATE MIDDLE PLEISTOCENE: primarily controlled by tectonic factors and by the nature of faunal associations of the groups the geological substratum. Climatic changes only had a - "D": Arvicola moshachensis (= A. terrestris secondary influence on this process. According to the canüana) instead of Mimomys savini, together with number of terrace levels listed, three different terrace Panthera (Leo) fossilis, Mammuthus trogontherii, Elephas sequence formation models were identified in the antiquus, some archaic horses - Equus altidens, Equus continental Iberian interior (Pérez Gonzaïez et al. 1982): suessenbornensis - and Dicerorhinus etruscus, Bison priscus, different Cervidae, etc. Documented in such sites 1. The valleys with a large number of terrace levels (more as Cüllar de Baza I, Pinedo, Torralba and Ambrona (lower than 20), with the highest at more than 150 m above the levels) and present river level. - "E": similar to the preceding, without Praemegaceros 2. The valleys with an intermediate number of terraces and Dolichodoriceros, but with Oryctolagus cuniculus, (8 to 10), and Equus caballus germanicus and Capreolus capreolus. 3. Valleys with only a few terraces, with the highest at a Documented in such sites as Aridos, Solana del mere 40 meters above the present river level. Zamborino, Atapuerca TD-TG 10-11 and TN-2 to 6, Pinilla This great diversity causes enormous problems, not only del Valle, Ambrona (upper levels). in the correlation between different river valleys, but also in INITIAL LATE PLEISTOCENE: the correlation between different geomorphological sectors faunal association of the within the same valley. Nonetheless, it is possible to make - "F" group: including the last Elephas (P.) antiquus some general correlations and, in the case of the more and Dicerorhinus hemitoechus, with the appearance of developed valleys, it is even possible to isolate different Rangifer tarandus, Capra pyrenaica, Rupicapra rupicapra, series of terraces, based on the dimension of their Equus caballus gallicus. escarpments, and to attribute them to consecutive periods Documented in Zafarraya, Carihuela, Cova Negra, within the Middle Pleistocene. Lezetxiki, Valdegoba, La Ermita, Abri Romani, etc. The almost complete lack of significant faunal asso- However, the biostratigraphical limitations of these ciations in most open-air fluvial palaeolithic sites makes it groups are stressed by Aguirre himself, either because very difficult to use any biostratigraphic reference tables, of the uncertainty and chronological overlapping between such as for instance the one established by E. Aguirre several groups, or because of the clearly occurring (1989): different "transitional" assemblages, especially those EARLY PLEISTOCENE: from around the Early/Middle Pleistocene boundary. faunal associations of the groups In addition, it must be emphasised that almost all the - "A": Allophaiomys pliocaenicus, together with associations used to establish the oldest phases are found Villafranchian carnivora like Acinonyx, Viretailurus in purely palaeontological sites. The few Iberian open-air schaubi, Xenocyon rosi. lower palaeolithic sites with important faunal assemblages, Documented in sites such as Cueva Victoria, Orce 4, well-placed morphostratigraphically in the local terrace Incamal and Bagur 2 and sequences and containing convincing anthropogenic - "B": Allophaiomys pliocaenicus, without Villa- evidence, are all too recent to be considered in this frachian carnivora, but with Cuon priscus, Mosbach wolf paper. and new Bovidae, such as Capra and Soergelia. To summarise, it can be concluded that the discussion Documented in sites such as Venta Micena 2, Barranco concerning the most ancient human occupation of Iberia is León and Orce 7. limited, primarily by the insufficiency of the