ICArEHB
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Interdisciplinary Center for Archaeology and Evolution of Human Behaviour
Centro de investigação interdisciplinar em Arqueologia e evolução do comportamento humano
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- Actividades do Centro de Estudos Arqueológicos do concelho de Oeiras (CEACO) desenvolvidas em 2024Publication . Cardoso, João LuisOs factos elencados neste Relatório confirmam o reconhecimento público ao nível do interesse e importância conferidos ao trabalho desenvolvido no CEACO, decisivos para a consolidação e afirmação das suas competências e atribuições no quadro da investigação, salvaguarda e divulgação do Património arqueológico oeirense. 1. Trabalhos laboratoriais e de gabinete 2. Revista Estudos Arqueológicos de Oeiras 3. Terceiro Colóquio Internacional História das Ideias e dos Conceitos em Arqueologia 4. Ciclo de conferências Pré-História do concelho de Oeiras 5. Visitas guiadas 6. Palestras e conferências 7. Colaborações 8. Quarta Edição do Prémio de Arqueologia Professor Doutor Octávio da Veiga Ferreira 9. Considerações finais
- Anthony E. Marks (1938–2025): pioneer of the palaeolithicPublication . Rose, Jeffrey Ian; Bicho, Nuno; Usyk, Vitaly I.; Winchell, FrankAnthony “Tony” Edward Marks passed away on August 15, 2025, at his home in Santa Fe, New Mexico, at the age of 87. Tony’s passing marks the end of a remarkable career in archaeology that spanned nine countries, four continents, and a quarter million years of prehistory. Not only did he fundamentally shape how we understand the Palaeolithic record, but he transformed our very perception of lithic technology, teaching us how to find the profound depth of meaning in stone. A proud New Yorker, Tony was born, raised, and edu¬cated in Manhattan. As a young student at Columbia Uni¬versity eager to pursue his love of European medieval art and churches, he was promptly taken aside by the anthropol¬ogy department head, Marvin Harris, who (rather forcefully as Tony would recall) urged him to stick with archaeology. Tony’s professional career began with the UNESCO Nubian salvage campaigns of the 1960s. As Lake Nasser rose behind the Aswan High Dam, Tony mapped prehistoric sites along the east bank of the Nile before their inundation. During the Nubian salvage project, he documented several key Palaeo¬lithic industries, including an array of assemblages defined by the presence of Nubian core technology. He could never know at the time how that discovery would unexpectedly resurface decades later, at the end of his career.
- Bell beaker footed bowls in the Iberian Peninsula: A trial inventory apropos a find from the Lapa do Fumo Cave (Sesimbra, Portugal)Publication . Cardoso, João Luis; Andrade, Marco António; Gil, RuiThe Lapa do Fumo cave (Sesimbra, Estremadura, Portugal) features a funerary context that has been extensively used since the Early Neolithic. A recent review of the votive assemblages revealed the presence of a vessel sherd belonging to a Bell Beaker footed bowl, featuring part of the base and the start of the foot, with incised decoration on the outer surface. This type of vessel, although quite rare, is known from various Bell Beaker complexes of the Iberian Peninsula throughout the entire time span of the Beaker phenomenon, mostly corresponding to the second half of the 3rd millennium BCE. Its geographical distribution in Iberia is equally widespread, occurring both in funerary and residential contexts. Starting from the Lapa do Fumo sherd presented herein, the authors will present an inventory of all known examples, integrating them into their respective chronological and cultural contexts. A technical and functional discussion is also included, based on an estimate of these items’ capacities.
- A comparison of tool-use flexibility between captive chimpanzees and bonobosPublication . Bandini, Elisa; Harrison, Rachel; Hrubesch, Christine; Forss, SofiaDespite chimpanzees and bonobos sharing close phylogenetic ties to humans, chimpanzees are the more common model species in multiple fields of comparative research. One reason for this bias is the variation in tool repertoire size observed between the two species. Previous studies have examined the factors driving this difference, but few have targeted flexibility in how tools are used. We studied bonobos and chimpanzees under similar conditions in captivity, thus excluding any ecological variation present in these species’ natural habitats. We examined whether the species differed in their ability to switch between tools, a trait that may facilitate tool innovation in primates. To do so, we provided the apes with a task that required switching tool type from a rigid stick to a bendable rope to forage successfully. Our data suggest that there are no significant differences in tool-use performance between chimpanzees and bonobos in captivity. However, we found significant differences in the species’ exploration tendencies. While chimpanzees fixed their attention on stick tools, bonobos switched their attention more easily towards the rope, potentially due to less functional fixedness. We also found significant within-species differences between institutions. These findings suggest that future research should disentangle intrinsic flexibility in exploration and account for institution and group level effects.
- Earliest evidence for intentional cremation of human remains in AfricaPublication . Cerezo-Román, Jessica I.; Sawchuk, Elizabeth; Schilt, Flora Cecilia; Bertacchi, Alex; Buckley, Gina; Chibisa, Edwin; Fahey, B. Patrick; Falchenberg, Sofia Gunilla Hedman; Kaliba, Potiphar; Kennett, Douglas J.; Mercader, Julio; Pargeter, Justin; Stock, Jay; Szymanski, Ryan; Thompson, Jessica C.Human cremation on an open pyre demands intensive labor, communal resources, and sensory exposures. We report the earliest evidence for intentional cremation in Africa, the oldest in situ adult pyre in the world, and one of only a few associated with hunter-gatherers. A large cremation feature at Hora 1 in Malawi dates to similar to 9500 years ago and contains the remains of a small, gracile adult with evidence for perimortem defleshing and postcremation manipulation. Subsequent revisiting of the site to build fires in the same place provided additional pyrotechnological spectacles. High-resolution, multiproxy reconstruction of the ritual associated with cremation and its subsequent deposition demonstrates complex mortuary practices among ancient African foraging groups with substantial social investment and use of natural landscape features as persistent mortuary monuments.
- Early evidence of earthquake management through mobility and social network adjustments at Vale Boi (SW Iberia)Publication . Barbieri, Alvise; Sánchez-Martínez, Javier; Belmiro, Joana; Fernandes, Paulo; Galfi, Jovan; Horta, Pedro; Cascalheira, João; Bicho, NunoTectonic processes profoundly influenced the dispersal, evolution, and archaeological record of our Paleolithic ancestors. However, in-depth reconstructions of human resilience against seismic events come mostly from contexts dating to the last 13,000 years. Here, we present geophysical, geological, geochronological, and archaeological data from the openair site of Vale Boy in southwestern Iberia, revealing how foragers mitigated earthquake impacts between ~30,000 and 24,000 years ago. At Vale Boi, faulting formed sedimentary traps that were recurrently exploited by hunter-gatherers and periodically buried by rockfalls, likely triggered by ≥5.7 Mw earthquakes. Despite seismic destruction, hunter-gatherers repeatedly returned to the site, drawn by its strategic access to key resources. They mitigated seismic risks by increasing their mobility and even abandoning Vale Boi, as seen during the Gravettian and at the early/late Proto-Solutrean transition. When seismic and climatic stressors co-occurred (Heinrich Event 2), they did not abandon the site. Instead, they adopted strategies to limit their exposure to rockfall hazard while securing access to increasingly vital coastal and estuarine resources. Until the early Proto-Solutrean, tightly knit social networks supported the survival of Vale Boi foragers during periods of high stress, such as the aftermath of seismic rockfalls. During the late Proto-Solutrean, an expansion of super-regional connections might have functioned as a proactive buffer against future tectonic shocks. Our findings demonstrate that forager resilience to seismic events relied on flexible adjustments in mobility and social connectivity. Despite limitations deriving from its single-site focus, this study underscores the value of deep archaeological sequences for disentangling human responses to intertwined geological and ecological pressures.
- Em busca das nossas origens Pré-Históricas: uma resenha da historiografia portuguesaPublication . Cardoso, João LuisResenha da historiografia dedicada à Pré-História portuguesa, entrecruzada com as grandes ideias filosóficas e políticas que, desde o século XVI, influenciaram os sucessivos autores que abordaram nas suas obras as origens do povo português.
- A holocene n-alkane stable isotope record from Wonderwerk Cave, South Africa and its implications for the later stone age recordPublication . Ecker, Michaela; Rhodes, Sara; Andersen, Nils; Horwitz, Liora Kolska; Chazan, Michael; Makarewicz, Cheryl A.Sediment biomarkers are important archives of regional, and global climate signatures, particularly in regions which lack continuous terrestrial archives such as the semi-arid deserts of Africa. We measured carbon and hydrogen stable isotopes from plant wax n-alkanes recovered from the Holocene Later Stone Age (LSA) sedimentary sequence at Wonderwerk Cave (South Africa), that comprises several technocomplexes (Kuruman/Oakhurst, Wilton, Ceramic Wilton and Historic). The plant wax n-alkane results were integrated with published palaeoenvironment reconstructions from the cave based on faunal, botanical, geological and sedimentological proxies which provides a robust comparative framework. The findings match well with other proxy records from the same strata and indicate a semiarid to semi-humid early Holocene, with a mix of woody C3 plants and C4 grasses. In contrast, the midlate Holocene environment was increasingly arid, open and dominated by C4 grasses. A distinct humid period at 5300–6200 cal. BP is evident, associated with a high density of archaeological material and a change in cultural expression in the Wonderwerk record. This study provides a step forward in using stable isotopes from biomarkers to create terrestrial environmental records in semi-arid regions.
- Homo erectus adapted to steppe-desert climate extremes one million years agoPublication . Mercader, Julio; Akuku, Pamela; Boivin, Nicole; Camacho, Alfredo; Carter, Tristan; Clarke, Siobhán; Temprana, Arturo Cueva; Favreau, Julien; Galloway, Jennifer; Hernando, Raquel; Huang, Haiping; Hubbard, Stephen; Kaplan, Jed O.; Larter, Steve; Magohe, Stephen; Mohamed, Abdallah; Mwambwiga, Aloyce; Oladele, Ayoola; Petraglia, Michael; Roberts, Patrick; Saladié, Palmira; Shikoni, Abel; Silva, Renzo; Soto, María; Stricklin, Dominica; Mekonnen, Degsew; Zhao, Wenran; Durkin, PaulQuestions about when early members of the genus Homo adapted to extreme environments like deserts and rainforests have traditionally focused on Homo sapiens. Here, we present multidisciplinary evidence from Engaji Nanyori in Tanzania’s Oldupai Gorge, revealing that Homo erectus thrived in hyperarid landscapes one million years ago. Using biogeochemical analyses, precise chronometric dating, palaeoclimate simulations, biome modeling, fire history reconstructions, palaeobotanical studies, faunal assemblages, and archeological evidence, we reconstruct an environment dominated by semidesert shrubland. Despite these challenges, Homo erectus repeatedly occupied fluvial landscapes, leveraging water sources and ecological focal points to mitigate risk. These findings suggest archaic humans possessed an ecological flexibility previously attributed only to later hominins. This adaptability likely facilitated the expansion of Homo erectus into the arid regions of Africa and Eurasia, redefining their role as ecological generalists thriving in some of the most challenging landscapes of the Middle Pleistocene.
- The late pliocene to early pleistocene lomekwi faunas, west Turkana, Kenya: systematics, paleoecology, and biochronologyPublication . Geraads, Denis; Bobe, René; Ward, Carol V.; Plavcan, J. Michael; Manthi, Fredrick KyaloWe describe here the vertebrate fauna collected by the West Turkana Paleo Project at Lomekwi, a site best known for yielding the holotype of Kenyanthropus platyops and Lomekwian stone tools, and consisting of several collecting areas providing fossil samples ranging in age from about 3.6 to 2.2 Ma. Analysis of the newly recovered material, alongside a thorough revision of earlier collections, has led to the identification of 85 vertebrate taxa, which provide biochronological indications that help refine the site's chronology and shed light on the paleoenvironmental conditions prevailing during a critical period of early hominin diversification. The newly described fauna illustrates that during the time of Kenyanthropus, hominins shared their landscapes with a rich assemblage of vertebrates, including abundant megaherbivores, some 28 species of artiodactyls, diverse large and medium-size carnivores, and giant crocodiles as apex predators in the lakes and rivers of the Turkana region in the Pliocene. Among primates, the recurring association of Theropithecus with hominins is found at Lomekwi as it is elsewhere. Paleoenvironmental proxies from the Turkana region emphasize the complex and dynamic nature of the habitats that supported this rich biodiversity.
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