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Indigenous archaeology focuses on laudable processes of collaborative community research and decolonization. In contrast, theoretical contributions of Indigenous archaeology in terms of interpreting archaeological materials have been minimally articulated beyond praxis. Does Indigenous archaeology have an interpretative theoretical agenda? This paper addresses this question and articulates an agenda through distillation of theoretical developments and concerns from the considerable literature on Indigenous archaeology that has emerged from the Americas, Australia, and Africa over the past two decades. A shared fundamental concern is challenging ontological and epistemological divides and dualisms within mainstream Western archaeology. Two key dimensions of Indigenous archaeology are elaborated to provide broader scope to contextualize and address these theoretical challenges. First, encountering the past challenges objectivist tangibility of the archaeological record with ancestral presence and contexts where artifactual absence is the (in)tangible signature of spiritual association. Second, historicing the present challenges secularist archaeologies of a detached past with archaeologies of the more familiar ethnographically known recent past linked to identity and diachronic explorations of ontology and spiritualism. An agenda that embraces these theoretical challenges presents major opportunities for mainstream archaeology to reorient its Eurocentric focus and produce more cross-culturally relevant and culturally nuanced and sensitive understandings of the past.

A new quality assurance framework was developed to assess the reliability of [sup.14]C ages from a small-scale legacy dataset from archaeological sites across the Torres Strait (northeastern Australia). Chronometric transparency principles were applied across three stages of data analysis, comprising of a basic, immediate, and advanced assessment of the [sup.14]C ages and associated metadata. Reliability ratings (1*, 2*, 3*, and 4*) were assigned to represent data confidence in individual radiocarbon ages. Results demonstrate the utility of radiocarbon ages of high, medium, and low reliability in creating chronological reconstructions. We determine that of the 343 [sup.14]C ages, 73% were awarded a reliability rating of 3* or above.

Characteristics of marine shellfish and other species found in a Last Interglacial (LIG) shell deposit at Point Ritchie (Moyjil) at Warrnambool in south-western Victoria have been compared to those from modern and LIG natural beach deposits, Holocene Aboriginal middens and modern Pacific Gull ( Larus pacificus ) middens. The research was aimed at determining whether properties such as shell speciation, size or taphonomy could identify the mechanism responsible for formation of the Moyjil deposit. Marine species found in the Moyjil deposit resemble those found in both Aboriginal and Pacific Gull middens and are non-discriminatory for the two types. Taphonomic properties such as wear and breakage pattern of opercula of the dominant species, Lunella undulata (syn. Turbo undulatus ), are non-diagnostic because of post-depositional erosion and transport effects in the available specimens. The size of L. undulata opercula show clear bias toward larger individuals, in common with Aboriginal and seabird middens, when compared to natural shell deposits. Statistical analysis (ANOVA) of the size distributions shows a greater similarity of the Moyjil deposit to the two seabird middens than the two Aboriginal middens. Small individuals (operculum <10 mm diameter) of L. undulata as well as smaller shellfish species are absent from the seabird middens studied, but they are present in Aboriginal middens and in the Moyjil deposit. Overall, we conclude that shell properties alone are not sufficient to distinguish which predator collected the shellfish occurring in the deposit.

Historical ecology has revolutionized our understanding of fisheries and cultural landscapes, demonstrating the value of historical data for evaluating the past, present, and future of Earth’s ecosystems. Despite several important studies, Indigenous fisheries generally receive less attention from scholars and managers than the 17th–20th century capitalist commercial fisheries that decimated many keystone species, including oysters. We investigate Indigenous oyster harvest through time in North America and Australia, placing these data in the context of sea level histories and historical catch records. Indigenous oyster fisheries were pervasive across space and through time, persisting for 5000–10,000 years or more. Oysters were likely managed and sometimes “farmed,” and are woven into broader cultural, ritual, and social traditions. Effective stewardship of oyster reefs and other marine fisheries around the world must center Indigenous histories and include Indigenous community members to co-develop more inclusive, just, and successful strategies for restoration, harvest, and management. ‘Commercial fisheries have decimated keystone species, including oysters in the past 200 years. Here, the authors examine how Indigenous oyster harvest in North America and Australia was managed across 10,000 years, advocating for effective future stewardship of oyster reefs by centering Indigenous peoples.’

Claims for a human presence in Australia beyond 60,000 years ago must have a strong evidence base associated with rigorous methodology and intense scrutiny. In this light we present excavation results for Charcoal and Burnt Stone Feature #1 (CBS1) located within coastal dune sediments at Moyjil (Point Ritchie), Warrnambool, that independent geomorphic and OSL dating indicates is of Last Interglacial age (~120,000 years ago). While on plausibility grounds the cultural status of a feature of such great antiquity in Australia is unlikely, a cultural origin for CBS1 is less easily dismissed if assessed with an age-independent methodology. A broad range of macroscale discrimination criteria has been used to assess whether CBS1 is either a cultural hearth or a natural feature such as a burnt tree stump. On balance, evidence marginally supports a cultural origin over a natural origin. However, the absence of associated stone artefacts and faunal remains and the presence of burnt root wood precludes definitive statements on the cultural status of the feature. Our case study is methodologically instructivein terms of the potential complexities and issues of equifinality involved in the archaeological identification of ancient hearths.

Budj Bim Cultural Landscape, Australia, is internationally recognised for evidence of the 6000-year-old Gunditjmara eel aquaculture system. Research supporting a World Heritage nomination for Budj Bim has found that Indigenous knowledge, use and management of natural resources are rarely considered as cultural values in World Heritage sites. When cultural landscapes that reflect these values are considered as a distinct type of site, a significant gap is highlighted in the representation of the values of Indigenous peoples on the World Heritage List.

Practice theory focuses attention on agency and the generative dimensions of sites and material culture in terms of social formation and reproduction. This approach is applied to the ritualization of midden deposits by Torres Strait Islanders of northeast Australia. Ritualization of middens was achieved by three depositional strategies of privileged differentiation: referencing of mortuary remains, discrimination of animal bones and mounding of deposits. In addition, ritualized middens were spatially separated into small residential mounds and large communal feasting mounds. Ritualized middening was part of a broader social process of maintaining the biographical status of midden materials as a dimension of community socialization, identify and cohesion.

Shelly deposits at Moyjil (Point Ritchie, Warrnambool), Victoria, together with ages determined from a variety of techniques, have long excited interest in the possibility of a preserved early human influence in far south-eastern Australia. This paper presents a detailed analysis of the stratigraphy of the host Bridgewater Formation (Pleistocene) at Moyjil and provides the context to the shelly deposits, evidence of fire and geochronological sampling. We have identified five superposed calcarenite–palaeosol units in the Bridgewater Formation, together with two prominent erosional surfaces that may have hosted intensive human activity. Part of the sequence is overlain by the Tower Hill Tuff, previously dated as 35 ka. Coastal marine erosion during the Last Interglacial highstand created a horizontal surface on which deposits of stones and shells subsequently accumulated. Parts of the erosional surface and some of the stones are blackened, perhaps by fire. The main shell deposit was formed by probable mass flow, and additional shelly remains are dispersed in the calcareous sand that buried the surface.

In my case, working with Aboriginal peoples and Torres Strait Islanders in Australia, my audience is split primarily between other academic archaeologists and Indigenous communities with whom I work. As an advocate and practitioner of Indigenous archaeology, I am constantly looking for ways to make archaeological approaches to the past more meaningful and relevant to Indigenous communities. This epistemological and ontological quest requires not only understanding Indigenous people's relationships with, and conceptualizations of, the past, but also how people relate to objects, sites, and places in the present in the construction of contemporary identity.

An unusual shell deposit at Moyjil (Point Ritchie), Warrnambool, in western Victoria, has previously been dated at 67±10 ka and has features suggesting a human origin. If human, the site would be one of Australia’s oldest, justifying a redetermination of age using amino acid racemisation (AAR) dating of Lunella undulata (syn. Turbo undulatus ) opercula (the dominant shellfish present) and optically stimulated luminescence (OSL) of the host calcarenite. AAR dating of the shell bed and four Last Interglacial (LIG) beach deposits at Moyjil and Goose Lagoon, 30 km to the west, confirmed a LIG age. OSL analysis of the host sand revealed a complex mixing history, with a significant fraction (47%) of grains giving an early LIG age (120–125 ka) using a three-component mixing model. Shell deposition following the LIG sea-level maximum at 120–125 ka is consistent with stratigraphic evidence. A sand layer immediately below the shell deposit gave an age of ~240 ka (i.e. MIS 7) and appears to have been a source of older sand incorporated into the shell deposit. Younger ages (~60–80 ka) are due to bioturbation before calcrete finally sealed the deposit. Uranium/thorium methods were not applicable to L. undulata opercula or an otolith of the fish Argyrosomus hololepidotus because they failed to act as closed systems. A U–Th age of 103 ka for a calcrete sheet within the 240 ka sand indicates a later period of carbonate deposition. Calcium carbonate dripstone from a LIG wave-cut notch gave a U–Th age of 11–14 ka suggesting sediment cover created a cave-like environment at the notch at this time. The three dating techniques have collectively built a chronology spanning the periods before and after deposition of the shell bed, which occurred just after the LIG sea-level maximum (120–125 ka).