Quaternary Environments and Humans最新文献

{"title":"The geoarchaeology, chronology and environment of Lusakert-1, a Late Middle Palaeolithic rockshelter (Kotayk Province, Armenia)","authors":"Keith N. Wilkinson ,&nbsp;Ethel Allué ,&nbsp;Simon J. Armitage ,&nbsp;Adam van Arsdale ,&nbsp;Guy Bar-Oz ,&nbsp;Alex Brittingham ,&nbsp;Boris Gasparyan ,&nbsp;Jayson Gill ,&nbsp;Philip Glauberman ,&nbsp;Thomas F.G. Higham ,&nbsp;Ellery Frahm ,&nbsp;Tanner Kovach ,&nbsp;Vasilija Lukich ,&nbsp;Carolina Mallol ,&nbsp;Yannick Raczynski-Henk ,&nbsp;Iván Rey Rodríguez ,&nbsp;Jennifer E. Sherriff ,&nbsp;Aayush Srivastava ,&nbsp;Lior Weissbrod ,&nbsp;Reuven Yeshurun ,&nbsp;Daniel S. Adler","doi":"10.1016/j.qeh.2024.100054","DOIUrl":"10.1016/j.qeh.2024.100054","url":null,"abstract":"<div><div>Lusakert-1 (LKT-1) is a key site in any discussion of the Palaeolithic of the Armenian Highlands. This is in large part because of a long-running campaign of excavation in the 1970–1980s which recovered an obsidian artefact assemblage that was then interpreted as spanning the Lower–Upper Palaeolithic. Our reinvestigation in 2008–2012 revealed evidence of occupation in the interior of the LKT-1 rockshelter comprising spreads of ash, obsidian artefacts and human-modified bone. Deposits inside the rockshelter interdigitate with alluvial sediments deposited in a now-abandoned meander of the river Hrazdan demonstrating that occupation took place at the floodplain edge. Artefacts are typologically Middle Palaeolithic, and based on refits and inferences made from micromorphological and lithostratigraphical observation, are preserved in a near <em>in situ</em> state in the rockshelter interior. Artefacts recovered from alluvial strata on the rockshelter exterior are, however, in a secondary context. In addition to stone tool production and use, and the laying of fires, the butchery of wild goat and wild ass is also documented. These activities likely took place seasonally given that evidence of the use of the site by owls - raptors that avoid humans - is found through much of the rockshelter stratigraphy. Radiocarbon and luminescence dating indicate that the rockshelter sequence accumulated in the 65–34 ka interval, i.e. during Marine Isotope Stage 3. Indeed, micromorphological and stable isotopes of <em>n</em>-alkanes demonstrate changes between the warm-humid and cool-dry climates that characterise MIS 3 in the region. Nevertheless, stable isotope data, vertebrate remains, and wood charcoal suggest that grassland vegetation dominated throughout, albeit that arboreal vegetation is associated with deposits accumulating during humid phases. LKT-1 offers a unique and detailed perspective on hominin behaviour and palaeoenvironments in the Armenian Highlands prior to the Upper Palaeolithic and serves as a valuable comparison to the growing Middle Palaeolithic record of the broader region.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"3 1","pages":"Article 100054"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comment to the ICS Anthropocene decision: From stratigraphy to storytelling","authors":"Håvard Kilhavn ,&nbsp;Julie Shipp ,&nbsp;Anastasia Bertheussen","doi":"10.1016/j.qeh.2024.100036","DOIUrl":"10.1016/j.qeh.2024.100036","url":null,"abstract":"","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100036"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interpreting the edge angle efficiency of middle palaeolithic lithic assemblage with Artifact-3D – A case study Barwaniya W1, North Karanpura Valley, Eastern India","authors":"Shubham Rajak,&nbsp;Pronil Das","doi":"10.1016/j.qeh.2024.100031","DOIUrl":"10.1016/j.qeh.2024.100031","url":null,"abstract":"<div><div>The lithic technology is directly linked with knapping skills, cognition, and economic production of a particular culture. The central objective of lithic production was to obtain desirable edge angles and sharpness for cutting/ butchering work in an efficient manner to achieve the highest utility/ efficiency and low production ratio. The angle of an edge, whether unaltered or retouched and as part of the overall tool design, is undoubtedly a parameter that influences the behavioural dimension of a lithic artefact. Thus, lithics artefacts' work efficiency or knapping efficiency depends on their working (cutting) edge angle, length of the parallel edge, centre of gravity, length of lithic, and lesser rate of edge angle damage. The present research has analysed the working edge angle of the Middle Palaeolithic Levallois assemblage from the newly discovered site of Barwaniya W1 from the North Karanpura Valley (North of Upper Damodar Basin), Jharkhand, India with the help of semi-automated 3D edge angle analysis technique. the current study scrutinises the entirety of an artefact's edge angle through automated positioning based on surface tension and a higher number of reference measurement points on the 3D scan surface of the artefact. This research has digitally measured the Middle Palaeolithic quartzite flake-based assemblage from Barwaniya W1 and their working edge angle, parallel edge (thick blunt side used for hafting), and centre of gravity with <em>Artefact-3D</em> software which has provided us with precise measurement without human errors and ambiguity. Further, this research has replicated the quartzite lithic assemblage of Barwaniya W1 with the Levallois reduction technique to interpret the edge angle efficiency.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100031"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Human activities, early farming and natural environment in the north-western Kanto Plain (Central Japan) during the Final Jomon–Early Kofun period (990 cal BCE–330 cal CE) inferred from palynological and archaeobotanical records","authors":"Christian Leipe ,&nbsp;Franziska Kobe ,&nbsp;Anna Schubert ,&nbsp;Eiko Endo ,&nbsp;Maya Yasui ,&nbsp;Hirotaka Koshitsuka ,&nbsp;Michiko Ono ,&nbsp;Pavel E. Tarasov ,&nbsp;Mayke Wagner","doi":"10.1016/j.qeh.2024.100030","DOIUrl":"10.1016/j.qeh.2024.100030","url":null,"abstract":"<div><div>The emergence, spread and intensification of agriculture, the impact of early agriculture on the natural environment and the possible role of climate on subsistence economies and population dynamics are important research questions in Japanese geoarchaeology. New directly dated archaeobotanical records of the Middle Yayoi (390–200 cal BCE, 1σ error) and Early Kofun (210–330 cal CE) periods from the Ikegami archaeological site and a 1300-year palynological record from the nearby Morinji Marsh help address these questions in the Kanto Plain of Central Japan. The pollen record suggests that management of chestnut and horse-chestnut by Final Jomon people in the study region declined around 750 cal BCE. The microcharcoal record indicates that human-induced fire activity decreased after 990 cal BCE and reached a minimum 500 years later, which coincides with the hemispheric-scale Iron Age Cold Epoch and late Bond event 2. Increasing use of fire from ca. 500 cal BCE is contemporaneous with the earliest evidence of millet-rice cultivation from south-western Kanto and the Central Highlands. This and pollen-based indicators of crop cultivation around Morinji Marsh ca. 200 cal BCE are consistent with the ¹⁴C-dated arrival of the first full-scale rice farmers at Ikegami. Their food economy still had a noticeable wild plant component (e.g. beans, walnut, horse-chestnut and acorn), however, the archaeobotanical assemblages from the Early Kofun period show a higher focus on rice cultivation and no evidence of a wild plant component. Variations in the charcoal concentrations and archaeobotanical data from the study region help postulate three phases of farming intensification related to cultural diffusion and/or migration. These phases, dated to ca. 500–300, 300–100 cal BCE and 100 cal BCE–250 cal CE, correspond to the pottery typologically defined late Early–early Middle Yayoi, middle–late Middle Yayoi and Late Yayoi periods, respectively.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100030"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constraining the age of the Middle Stone Age locality of Bargny (Senegal) through a combined OSL-ESR dating approach","authors":"E. Ben Arous ,&nbsp;K. Niang ,&nbsp;J.A. Blinkhorn ,&nbsp;M. Del Val ,&nbsp;A. Medialdea ,&nbsp;C. Coussot ,&nbsp;M.J. Alonso Escarza ,&nbsp;M.D. Bateman ,&nbsp;A. Churruca Clemente ,&nbsp;A.F. Blackwood ,&nbsp;J. Iglesias-Cibanal ,&nbsp;C. Saíz ,&nbsp;E.M.L. Scerri ,&nbsp;M. Duval","doi":"10.1016/j.qeh.2024.100044","DOIUrl":"10.1016/j.qeh.2024.100044","url":null,"abstract":"<div><div>The Middle Stone Age (MSA) is the major chrono-cultural phase associated with the emergence and evolution of <em>Homo sapiens</em> in Africa. Despite its importance, the MSA has not been evenly investigated across Africa, and West Africa in particular remains poorly understood. Although new research is beginning to fill in this crucial gap of knowledge, the existing MSA chronologies in West Africa only rely on Optically Stimulated Luminescence (OSL) dating. In this context, the increasing use of a multi-method dating approach appears essential to strengthen this emerging geochronological framework. Here, we apply such approach to constrain the age of Bargny locality, located in close proximity to the modern Senegalese coast (South of Dakar), and which documents one of the oldest MSA occupations in West Africa. Specifically, we combine OSL and Electron Spin Resonance (ESR) methods to date the MSA sites of Bargny 3 (BG3) and Bargny 1 (BG1). A mean OSL age of 127±8 ka may be proposed for the MSA of BG3, which is in good agreement with a mean Ti-H ESR age of 125±14 ka from the same unit. Interestingly, similar ages are obtained by OSL (144±7 ka) and Ti-H ESR (138±14 ka) for the MSA horizon from BG1. While these results illustrate the great potential of the combined OSL-ESR dating approach to establish robust chronologies, they also contribute to improve the geographical and chronological resolution of the MSA record in West Africa. More specifically, they also corroborate the presence of MSA occupations along the Senegambian coast around the MIS 6-MIS 5 transition. In combination with the associated estuarine environments and mangrove forest, the evidence from Bargny adds to the known diversity, and likely complex behaviour, of early human populations living by Africa’s coastlines.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100044"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Caring for preservation - coring for prehistoric life. Revisiting 15 000 years of sedimentation at the Ageröd peatland, Southern Sweden","authors":"Anton Hansson ,&nbsp;Mathilda Kjällquist ,&nbsp;Adam Boethius","doi":"10.1016/j.qeh.2024.100039","DOIUrl":"10.1016/j.qeh.2024.100039","url":null,"abstract":"<div><div>The Rönneholm-Ageröd peatland complex, situated in central Scania, contains numerous archaeological sites discovered since the 19th century. Two sediment sequences were obtained at the Ageröd peatland to compare the sediment stratigraphy with a previous sequence obtained in 1960 to detect any modern-day changes and to establish the Holocene environmental development in the area. To clarify the timing of ceased peat-cutting activities, dendrochronological analysis was performed on trees growing on the peatland. The results indicate that the lake transitioned into first a fen stage and later a raised bog stage, at about 7300 cal BP and 6500 cal BP, respectively. Furthermore, the dendrochronological analysis indicates that peat cutting ceased at least before 1960 in the sampled areas. Depending on e.g. hydrological conditions and human impact, the potential for preservation of organic remains varies greatly within the Rönneholm-Ageröd peatland complex. After peat-cutting activities ceased at the Ageröd peatland, the area was abandoned, without being restored to its original state and the drainage systems were left open but without maintenance. Our results show that these drainage ditches are still effective at the Ageröd peatland, which contributes to an active loss of peat at the top of the stratigraphic sequence. This causes the youngest formed peat layers to degrade, in turn, exposing older layers and reducing the buffer zone above the preserved organic cultural heritage from the lake-phase of the wetland with their destruction. To increase the understanding of modern-day processes affecting the preservation of organic remains in peatlands, continued monitoring and measuring of the peatland preservation status is needed in areas with archaeological deposits. We predict that if we fail to take action and establish a routine for finding and mitigating ongoing wetland degradation, the organic cultural and environmental heritage in them will, in the not-too-distant future, collapse and irrevocably deteriorate.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100039"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into archaeological and modern neotropical biomes: Examining diet and shape variation through white-tailed deer lower third molar","authors":"María Fernanda Martínez-Polanco ,&nbsp;Ana Belén Galán López ,&nbsp;Florent Rivals","doi":"10.1016/j.qeh.2024.100035","DOIUrl":"10.1016/j.qeh.2024.100035","url":null,"abstract":"<div><div>The white-tailed deer (<em>Odocoileus virginianus</em> Zimmermann 1780) holds significant ecological importance across the Americas, both historically and in modern times. This species ranges from southern Canada to Brazil and exhibits polytypic characteristics, adapting well to diverse habitats including temperate, subtropical, semi-arid, rainforest, and savanna environments. In paleontology and archaeology, the comparison of dental characteristics between extant mammal species with known diets is commonly employed to infer the feeding behaviors of their ancient counterparts. This method assumes that extant and fossil species share similar dietary preferences, aiding in the identification of past environmental contexts. Consequently, we employed a multiproxy approach, combining the study of dental wear and 2D geometric morphometrics, to investigate potential relationships between molar shape, diet, and biomes among extant white-tailed deer populations across the Americas. Our analysis included a comparison with archaeological data from Panama. We sampled 274 extant lower second molar specimens for micro- and mesowear analysis, along with 105 lower third molar specimens from natural science museums for 2D geometric morphometric analysis. These were compared with a sample of 65 archaeological specimens from Panama. Our findings revealed distinct variations in the shape of lower m3 molars among extant white-tailed deer populations across different biomes, with notable differences observed in the archaeological samples as well. Micro- and mesowear analyses also indicated biome-related differences, suggesting a general browsing diet for white-tailed deer with nuanced variations across biomes. Mesowear analysis further suggested a dietary spectrum ranging from pure browsers to browser-mixed feeders. These findings offer valuable insights for the interpretation of fossil deer specimens recovered from archaeological sites.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100035"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reconsidering the Vaddas of Sri Lanka: Biological and cultural continuity, and misconceptions","authors":"Wijerathne Bohingamuwa ,&nbsp;Kalangi Rodrigo ,&nbsp;Harendralal Namalgamuwa","doi":"10.1016/j.qeh.2024.100043","DOIUrl":"10.1016/j.qeh.2024.100043","url":null,"abstract":"<div><div>This paper aims to re-examine key scholarly works pertaining to the Sri Lankan Vadda, an indigenous community of the island, in order to explore extant research of the said community. Despite considerable progress, lingering misunderstandings and uncertainties persist regarding their origins, connections to prehistoric populations, affiliations with contemporary ethnic groups, and the interrelationships among different Vadda communities across the island. Furthermore, uncertainties persist regarding the authenticity of Vadda skeletal remains and the adequacy of archaeological samples, which often suffer from fragmentation and incompleteness. It is this archaeological sample that has been used to draw conclusions about the cultural and biological continuity of the Mesolithic population or the Balangoda man (<em>Homo sapiens balangodensis</em>) with the Vaddas and the modern populations of the island, thus perhaps distorting interpretations. Similarly, this study underscores concerns regarding the representation of modern samples collected from diverse Vadda clans inhabiting various ecological zones and engaging in different subsistence practices, potentially skewing the conclusions of preceding research. In this study, fresh ethnoarchaeological data are used to examine some misconceptions prevailing about the <em>Warugas</em> (clans) as well as the use of the term <em>Wanniyalaetto</em> as a synonym for Vaddas. Given the rapid acculturation of Vaddas, there is a pressing need for continued interdisciplinary investigations into the Vadda communities, encompassing different <em>Warugas</em> and geographic regions, to ensure a better understanding of their socio-cultural dynamics with the aim of enhanced insight into their evolutionary pathways.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100043"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Data‐Driven Paradigm Shift for the Middle‐to‐Upper Palaeolithic Transition and the Neandertal Debate","authors":"João Zilhão ,&nbsp;Francesco d’Errico ,&nbsp;William E. Banks ,&nbsp;Nicolas Teyssandier","doi":"10.1016/j.qeh.2024.100037","DOIUrl":"10.1016/j.qeh.2024.100037","url":null,"abstract":"<div><div>Based on morphologically undiagnostic human remains from the southern Balkans and central Europe, it has been argued that the Bachokirian and Ranisian industries stand for modern humans, have roots in the IUP (Initial Upper Palaeolithic) of the Near East, and emerge ∼45,000 years ago. Coevally, Siberia and Central Asia would also have been reached by IUP moderns and, in the process, Western Europe’s Neandertals would have been acculturated, explaining the innovations (namely, body ornamentation) seen in the Châtelperronian. However, current usage of the IUP label confuses terminology and conceals issues of association raised by syn- and post-depositional disturbance, genomic patterns do not correlate with skeletal morphology, and the people of the Bachokirian and the Ranisian had Neandertal ancestors who lived many centuries after those technocomplexes’ start dates, as did a Neandertal from Spy (Belgium), a site of the Ranisian. Moreover, the stratigraphic provenience and taxonomic affinity of the fossils associated with the Uluzzian, the Protoaurignacian, and the Ahmarian are uncertain. The former is coeval with the Châtelperronian, the latter two emerge no earlier than ∼41,500 years ago, and the sufficiently complete fossils of broadly the same age are of mosaic anatomy and mixed ancestry. For western Eurasia, our review supports the Assimilation model, whereby ten millennia of converging cultural developments and increased demic interaction bridge the initial (Neandertal) and final (Cro-Magnon) terms of a complex evolutionary and historical process. Throughout, the observed diversity cannot be reduced to a taxonomic dichotomy. As human biology varied in a continuous space and material culture varied in a discrete space, no one-to-one correspondence between the two domains can exist. Advancing our understanding of the Middle-to-Upper Palaeolithic transition requires abandoning outdated frameworks and fully embracing the taphonomic perspective and the potential of genetics to approach the evidence in terms of communities, populations, and short-term history.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100037"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The ancient Maya and limestone","authors":"Barbara Voorhies ,&nbsp;George H. Michaels","doi":"10.1016/j.qeh.2024.100028","DOIUrl":"10.1016/j.qeh.2024.100028","url":null,"abstract":"<div><div>This article posits that the ancient Maya were uniquely advantaged by the limestone bedrock of their homeland, the Yucatán Peninsula. This happenstance was unintentional, but limestone provided a resource that helped promote Maya society to become a civilization. The most significant innovation was the elevation of one cultivated plant, maize, to the role of a dietary staple, which was made possible by nixtamalization, an innovative processing technology that increased the plant’s nutritional value. Nixtamalization relies on soaking maize kernels in an alkaline solution, which the Maya usually made with burned limestone. Before maize became a staple, earlier prehistoric Maya likely cultivated many crops, with maize among them. The consequent dietary and intense cultural focus on maize by later prehistoric Maya blinded researchers from recognizing that the earliest Maya on the peninsula were broad-spectrum farmers.</div></div>","PeriodicalId":101053,"journal":{"name":"Quaternary Environments and Humans","volume":"2 6","pages":"Article 100028"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}