Daniel García Rivero

Phylogenetic Analysis Shows That Neolithic Slate Plaques from the Southwestern Iberian Peninsula Are Not Genealogical Recording Systems

Prehistoric material culture proposed to be symbolic in nature has been the object of considerable archaeological work from diverse theoretical perspectives, yet rarely are methodological tools used to test the interpretations. The lack of testing is often justified by invoking the opinion that the slippery nature of past human symbolism cannot easily be tackled by the scientific method. One such case, from the southwestern Iberian Peninsula, involves engraved stone plaques from megalithic funerary monuments dating ca. 3,500–2,750 B.C. (calibrated age). One widely accepted proposal is that the plaques are ancient mnemonic devices that record genealogies. The analysis reported here demonstrates that this is not the case, even when the most supportive data and techniques are used. Rather, we suspect there was a common ideological background to the use of plaques that overlay the southwestern Iberian Peninsula, with little or no geographic patterning. This would entail a cultural system in which plaque design was based on a fundamental core idea, with a number of mutable and variable elements surrounding it.

Darwinian Archaeology and Cultural Phylogenetics

This paper is a review of evolutionary thought in archaeology. It explains why and how the application of Darwinian evolutionary theory to archaeology is possible and, moreover, useful. It expounds what this scientific field gains from considering the study of material culture and, by extension, of cultural change from this perspective. After explaining the main theoretical principles, it develops a history of the application of this epistemology in archaeology, focusing particularly on the tasks of classification and sequencing of data and thus entering into the current field of cultural phylogenetics.

The evolution of anthropomorphism in the neolithic engraved plaques of Southwestern Iberian Peninsula: a systematic approach from phylogenetics

Engraved slate plaques are a common part of the grave goods found in the Late Neolithic-Copper Age I megaliths of the southwest of the Iberian Peninsula (~3500–2700 cal BC). These objects have received a great deal of attention, since they are the first symbolic figurines to have become widespread in the Iberian Peninsula (almost 4000 plaques are estimated to be known today). Most previous studies, even from different and opposing archaeological perspectives, have highlighted the anthropomorphic nature of these plaques. The hypotheses regarding the evolution of their anthropomorphism and possible function have been diverse, yet there is a noteworthy absence of taxonomical studies in which the diversity and stylistic sequence of these symbolic objects have been systematically approached. This paper puts forward several models for the evolution of the anthropomorphism of the engraved plaques, based on cladistics and occurrence seriation. The results are then analyzed in conjunction with the currently available chronological and stratigraphic information. The paper concludes with a proposal of the most probable typology and its sequence, leading to a better understanding of the diversity and evolution of the plaques. Beyond this particular phenomenon, this paper provides insights into the study of the evolution of the symbolic representation of the human figure, through the development of an innovative methodological protocol.

Selección sexual y éxito reproductivo en la protohistoria ibérica. Un enfoque evolucionista

The studies about sexual behaviours and their con- sequences for the reproduction of individuals and groups in the Iberian Protohistory are few, and practically non existent those which have worked from an evolutionary perspective. This paper aspires to analyse these issues from the theoreti- cal focus of Evolutionary Archaeology, that is, from a Dar- winian perspective.