Native Pacific
Pre–Younger Dryas megafaunal extirpation at Rancho La Brea linked to fire-driven state shift
Robin O'Keefe et al.
Science, 18 August 2023
Abstract:
The cause, or causes, of the Pleistocene megafaunal extinctions have been difficult to establish, in part because poor spatiotemporal resolution in the fossil record hinders alignment of species disappearances with archeological and environmental data. We obtained 172 new radiocarbon dates on megafauna from Rancho La Brea in California spanning 15.6 to 10.0 thousand calendar years before present (ka). Seven species of extinct megafauna disappeared by 12.9 ka, before the onset of the Younger Dryas. Comparison with high-resolution regional datasets revealed that these disappearances coincided with an ecological state shift that followed aridification and vegetation changes during the Bølling-Allerød (14.69 to 12.89 ka). Time-series modeling implicates large-scale fires as the primary cause of the extirpations, and the catalyst of this state shift may have been mounting human impacts in a drying, warming, and increasingly fire-prone ecosystem.
Pounding the ground for the thunder god: Sounding platforms in the Prehispanic Andes (CE 1000–1532)
Kevin Lane
Journal of Anthropological Archaeology, forthcoming
Abstract:
The past is silent, or mostly so, yet sound can open a window to this same past. Early Spanish colonial ethnohistoric sources from the Andes are littered with references to indigenous dancing and music as an accompaniment to ritual and feasts. Recent archaeological research in the upper Ica Drainage on the late Prehispanic (CE 1000–1532) site of Viejo Sangayaico has revealed an open-air platform potentially prepared as a type of sprung or ‘sounding’ dancefloor which produces a deep percussion-like sound when stepped upon. I interpret this feature as a sounding platform for stomp dancing. The larger site’s association to veneration of Andean lightning and thunder deity suggests that dancing at this location might have been in part attuned to this supernatural entity. Wider ethnohistoric evidence provide a potential parallel into understanding what type of activities were practiced on this platform and site.
Assessing population dynamics in the Central Salish Sea, Pacific Northwest Coast of North America
Adam Rorabaugh
PLoS ONE, August 2023
Abstract:
Recent developments in radiocarbon dating have enabled archaeologists to re-examine the question of population dynamism in the Salish Sea. This study expands on Taylor and colleagues (2011) using Kernel Density Estimation (KDE) and an expanded data set of 538 radiocarbon dates from academic and cultural resource management literature. The expanded sample suggests a pattern of population growth from 3200–2800 cal BP in coastal Northwestern Washington, with population growth in the San Juan islands during 2600–2200 cal BP. A subsequent decrease in radiocarbon frequencies and large sites suggests shifts in use of the San Juan Islands, followed by peak large-scale occupation from 650–300 cal BP. This pattern is robust whether marine or terrestrial dates are considered. However, marine dates are less sensitive to questions at smaller temporal scales. The broad scale radiocarbon frequency patterns observed are also consistent with those observed in southwest coastal British Columbia (Ritchie et al., 2016; Morin et al., 2018).
On the pathways. Inter-nodal archaeology in the Atacama desert Pampa (c. 7000 BP-400 BP)
Gonzalo Pimentel et al.
Journal of Anthropological Archaeology, forthcoming
Abstract:
We present a synthesis of our investigation into pre-Hispanic pathways of the Atacama Desert Pampa -one of the driest and harshest environments on our planet- where we have identified a variety of mobility strategies and dynamics deployed by the different communities that inhabited both the Pacific coast and the inland oases of this region. Specifically, we focus on the inter-nodal archaeological and biogeochemical data that provides direct evidence of the presence of individuals from myriad regions traversing this area from the Middle Archaic to Late periods (c. 7000 BP-400 BP). Moreover, we analyze how, beginning in the Formative Period, this multiplicity of peoples employed different mobility systems, circulation, relationships, and social exchanges to integrate this apparent “empty space”. In doing so, we discuss and reformulate the classic highland caravanning model of the Andes, which considered highland caravanning groups as the only agents promoting long-distance mobility and exchange.
Political and cultural complexity in north-west China during the Western Zhou Period (1045–771 BC): New evidence from Yaoheyuan
Feng Luo
Antiquity, forthcoming
Abstract:
During the early first millennium BC, having deposed the Shang dynasty, the Western Zhou exerted power over large parts of China. Archaeologically, however, the Western Zhou are less well known than their predecessors in terms of north-west China. The site of Yaoheyuan is one of the most important recent discoveries of the Western Zhou period in north-west China. Investigations have revealed a walled urban centre, with high-status cemeteries and sacrificial pits, a palace complex, a bronze-casting foundry, pottery workshops and inscribed oracle bones. These unparalleled finds provide significant new evidence with which to examine the political and cultural landscape of north-west China and, more broadly, to reassess the relationships between centres and peripheries during the Chinese late Bronze Age.
Cranial injuries as evidence for violent conflict during the Gallinazo Phase in the Moche Valley of North Coastal Peru
Patricia Lambert
Journal of Anthropological Archaeology, forthcoming
Abstract:
In this study cranial injuries in human skeletal remains from the site of Cerro Oreja in the Moche Valley of north coastal Peru provide a proxy measure of violence during the Gallinazo Phase preceding the rise of the Southern Moche State and are used to assess the role that violent conflict may have played in state formation. Both healed and perimortem cranial vault fractures are present in the sample of 116 individuals from Cerro Oreja. These injuries provide evidence of both intra- and intergroup violence during the Early Intermediate Period (EIP) occupation of the site, ca. 400 BCE – AD 200. The injury rate is significantly higher than that observed in a residential sample (AD 200 – 800) from the site of Moche or in an aggregated EIP sample from the larger Andean region. While escalating violence during the Gallinazo Phase might be expected if warfare contributed to the genesis of this primary state, this was not statistically verified here. The data do suggest that a climate of violence prevailed at Cerro Oreja in the years preceding the rise of the Southern Moche State and that violent conflict likely contributed to the emergence of this hegemonic polity.