Review of Palaeobotany and Palynology最新文献

{"title":"Late Middle Pleistocene palynostratigraphy and landscape evolution in Western and Central Europe: Will the real Holsteinian Please Stand Up?","authors":"Filip Van Beirendonck,&nbsp;Cyriel Verbruggen","doi":"10.1016/j.revpalbo.2025.105319","DOIUrl":"10.1016/j.revpalbo.2025.105319","url":null,"abstract":"<div><div>The chronostratigraphic position of the Holsteinian interglacial is a long-standing debate. Although few doubt the typical vegetation dynamics reflected in pollen diagrams, some researchers still disagree about the age: Marine Isotope Stage (MIS) 11 or MIS 9. At the same time, this disagreement hinders the construction of a solid late Middle Pleistocene (LMP) palynostratigraphic framework for Western and Central Europe. The presented solution focuses simultaneously on the chronostratigraphic position of the Holsteinian and the development of a palynostratigraphic framework by combining the palynology with the stratigraphic context of organic LMP deposits. The authors demonstrate the differences in geomorphological position and vegetation dynamics between the MIS 11 Holsteinian on the one hand and MIS 9 sequences on the other by visually comparing pollen diagrams and looking for MIS 9 and MIS 7 correlations in Western and Central Europe. Some pollen profiles previously interpreted as Cromerian reflect MIS 9 palynology as described in this paper. The revised palynostratigraphic framework results in a new landscape evolution model, a compromise between the law of superposition and river terrace models, that explains the stratigraphic context of the different LMP interglacial complexes, i.e. MIS 11, 9 and 7: a phase of pronounced fluvial incision during MIS 10 was followed by net accumulation during MIS 9–8-7 in Western and Central Europe.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105319"},"PeriodicalIF":1.7,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A gondwanan Jurassic bryoflora? Anatomically preserved bryophytes in geothermal paleoenvironments from the Jurassic of Patagonia, Argentina","authors":"Adolfina Savoretti ,&nbsp;Ignacio H. Escapa ,&nbsp;Alexander C. Bippus ,&nbsp;Juan L. García Massini ,&nbsp;Diego Guido","doi":"10.1016/j.revpalbo.2025.105321","DOIUrl":"10.1016/j.revpalbo.2025.105321","url":null,"abstract":"<div><div>The Deseado Massif, which is located in the western part of the Santa Cruz Province, Argentina, contains numerous hot spring deposits related to the final stages of the Bahía Laura Complex. The aim of this study is to analyze the first Jurassic deposits with permineralized bryophytes at La Bajada hot spring-related locality, expanding the diversity of Jurassic bryophytes with anatomical preservation. &gt;<!--> <!-->200 fossiliferous petrographic thin sections were examined, leading to the discovery of four bryophyte morphotypes of leafy and thallose gametophytes. Detailed comparisons between each morphotype and extant and extinct bryophytes were carried out. The morphotypes described here may have various phylogenetic affinities, based on the latest comprehensive phylogenetic analyses of extant bryophytes. Although morphotypes described here do not represent the oldest representative for the lineages they represent, each of the studied fossils has a consistent set of diagnostic characters that relates them to specific nodes within bryophyte phylogeny. Moreover, the affinities of morphotype A with Marchantiales and Neohodgsoniales suggest affinities with the clade that is composed of these two orders together with Sphaerocarpales. Affinities of morphotypes B, C and D are more ample and related to different orders including within Bryophyta sensu stricto.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105321"},"PeriodicalIF":1.7,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental drivers of fungal non-pollen palynomorphs in European temperate forest","authors":"Marcelina Zimny,&nbsp;Patryk Czortek,&nbsp;Bogdan Jaroszewicz","doi":"10.1016/j.revpalbo.2025.105318","DOIUrl":"10.1016/j.revpalbo.2025.105318","url":null,"abstract":"<div><div>Fungal non-pollen palynomorphs (fNPPs) are increasingly recognized as valuable indicators in paleoecology, yet their ecological preferences in temperate lowland forests remain poorly understood. This study examines the environmental drivers shaping fNPP assemblages by assessing their relationships with key ecological gradients: forest type, ungulate pressure, canopy openness, and deadwood characteristics (coarse woody debris, snags, and stumps). Understanding these associations is critical for refining the use of fNPPs as indicators of forest structure, disturbance regimes, and ecosystem dynamics.</div><div>We analyzed fNPP assemblages from moss samples collected across structurally diverse forest habitats and applied multivariate analyses to determine their ecological affinities. The results indicate that medium ungulate pressure and variations in canopy openness significantly influence fungal community composition. Additionally, different types and volumes of deadwood provide key microhabitats for specialized fungal taxa, while saprotrophic and coprophilous fungi reflect organic matter decomposition and herbivore activity. Certain taxa also exhibited strong preferences for specific forest types, suggesting that fNPPs can indicate past moisture regimes, tree species composition, and forest dynamics.</div><div>These findings highlight the potential of fNPPs as proxies for past forest conditions, particularly in reconstructing herbivore activity, canopy structure, and wood decay processes. By linking modern fungal assemblages to environmental gradients, this study enhances the interpretation of fNPP records in paleoecology and provides a refined tool for reconstructing historical ecosystem processes and forest succession patterns.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105318"},"PeriodicalIF":1.7,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A tropical rainforest biome once existed in India at the K-Pg: Evidence from ‘one-vessel’ arecoid palms","authors":"Mahasin Ali Khan ,&nbsp;Robert A. Spicer ,&nbsp;Tao Su ,&nbsp;Kaustav Roy","doi":"10.1016/j.revpalbo.2025.105316","DOIUrl":"10.1016/j.revpalbo.2025.105316","url":null,"abstract":"<div><div>Here, we report ‘one-vessel’ palms (only one metaxylem vessel in each fibrovascular bundle (fvb) throughout the whole stem section) in considerable numbers from the latest Maastrichtian (Late Cretaceous)-earliest Danian (early Paleocene) (c. 67–64 Ma) sediments of the Deccan Intertrappean beds of Madhya Pradesh, central India. Detailed study of the anatomy of these fossil stems reveals the presence of ground parenchyma and sustained growth, lacunose ground parenchyma cells, and the presence of appendicular parenchyma connecting two fvbs, demonstrating their affinity with extant <em>Cocos</em>-type palms belonging to the sub-family Arecoideae. Based on the modern distribution of ‘one-vessel’ modern palms, we suggest that the discovery of ‘one-vessel’ palms from Deccan Intertrappean beds of Central India points to a tropical rainforest existing there during the Late Cretaceous to the early Paleocene.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105316"},"PeriodicalIF":1.7,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unusual chytrid-like fossils in a land plant cell from the Rhynie cherts","authors":"Michael Krings","doi":"10.1016/j.revpalbo.2025.105315","DOIUrl":"10.1016/j.revpalbo.2025.105315","url":null,"abstract":"<div><div>Evidence of chytrid-like fungi (i.e., Chytridiomycota and forms that resemble chytrids but cannot be safely assigned) using land plants or their spores as substrate and nutritional basis is rare in the Lower Devonian Rhynie cherts. This is surprising as chytrid-like organisms were abundant in the Rhynie ecosystem and land plants were a major carbon source. A cluster of unusual eucarpic, monocentric chytrid-like thalli has recently been found in a cell of a Rhynie chert land plant. Thalli are characterized by sporangia with a conspicuously darkened discharge papilla. Pigmented discharge papillae have not yet been described in fossil chytrid-like organisms. However, it remains unknown whether these are a natural feature or an artifact. Nevertheless, this discovery is important as it expands our knowledge of the interactions between early land plants and fungi.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105315"},"PeriodicalIF":1.7,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new Ephedra macrofossil from the Early Cretaceous Yixian Formation, Liaoning Province, China and its evolutionary significance","authors":"Peishan Li ,&nbsp;Min Deng ,&nbsp;Chen Hou ,&nbsp;Yaowu Xing","doi":"10.1016/j.revpalbo.2025.105314","DOIUrl":"10.1016/j.revpalbo.2025.105314","url":null,"abstract":"<div><div>Despite the significance of Gnetales in understanding the origin and evolution of seed plants, the morphological diversity of ancestral forms within this group remains unclear, and the evolutionary processes affecting their vegetative and reproductive structures lack robust evidence. In this study, we describe a new ephedroid macrofossil from the Lower Cretaceous Yixian Formation in western Liaoning, China. This species is characterized by decussate phyllotaxy, internodes with fine longitudinal striations, swollen nodes, and female cones featuring paired bracts and one to two seeds. While these characteristics resembled extant <em>Ephedra</em>, there are notable morphological differences, including oppositely branched stems of equal length and a seed envelope with transversely aligned epidermal cells on its surface. Consequently, we designate this new macrofossil reproductive shoot as a new species, <em>Ephedra transversa</em> sp. nov.. The findings of this study support the reduction and sterilization hypothesis and enhance our understanding of the evolutionary processes within Gnetales.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105314"},"PeriodicalIF":1.7,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on macro- and sporemorphology of a new species of Coniopteris (Dicksoniaceae) from the Middle Jurassic of western Liaoning, Northeast China","authors":"Fang-Yu Li ,&nbsp;Xiao Tan ,&nbsp;Yun-Yan Xiu ,&nbsp;Wen-Tao Liu ,&nbsp;Meng-Yu Chen ,&nbsp;Ning Tian","doi":"10.1016/j.revpalbo.2025.105312","DOIUrl":"10.1016/j.revpalbo.2025.105312","url":null,"abstract":"<div><div><em>Coniopteris</em> Brong. emend. <span><span>Harris, 1961</span></span> is an abundant and diverse fern taxon during the Mesozoic period, and it is commonly interpreted as a dicksoniaceous fern. With a probably Late Triassic origin, it flourished twice, in the Middle Jurassic and Early Cretaceous, respectively, then gradually disappeared after the late Early Cretaceous. Over 80 species have been ascribed to <em>Coniopteris</em> worldwide, of which at least 65 species were once found in China. In this paper, a new species, <em>Coniopteris haifanggouensis</em> sp. nov., is described, based on a well-preserved fertile frond with <em>in-situ</em> spores from the Middle Jurassic Haifanggou Formation in Beipiao City, western Liaoning Province, Northeast China. The frond is at least bipinnate. The fertile pinnae are lanceolate in shape, alternately arranged on the rachis, and the laminae are reduced to a stalk bearing long elliptical or rounded sorus at the tip. It is tentatively proposed that the frond type of <em>C. haifanggouensis</em> should be dimorphic. The spores are rounded-tetrahedral, with granular or wrinkled surfaces, and long and straight triradiate cracks. Compared to the dispersed spores preserved in the Haifanggou Formation, the <em>in-situ</em> spores of <em>C. haifanggouensis</em> are most similar to <em>Deltoidospora magna</em> in both gross morphology and microstructural details. The present finding enriches the species diversity of <em>Coniopteris</em> in China, and provides new evidence for further understanding of the characteristic of <em>in-situ</em> spores and frond types of the genus.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105312"},"PeriodicalIF":1.7,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The morphology of phytoliths for tropical pteridophytes in southwestern China","authors":"Chu-Jia Guo ,&nbsp;Xin-Wen Zhang ,&nbsp;Jian Huang ,&nbsp;Harald Schneider ,&nbsp;Yao-Wu Xing ,&nbsp;Tao Su ,&nbsp;Hong-Mei Liu","doi":"10.1016/j.revpalbo.2025.105313","DOIUrl":"10.1016/j.revpalbo.2025.105313","url":null,"abstract":"<div><div>Phytolith analysis of pteridophytes (ferns and lycophytes) is significant for reconstructing paleoenvironments and understanding their evolutionary histories. However, current research on phytoliths in extant pteridophytes remains scarce compared to these for angiosperms. This study focused on the highly diverse pteridophytes in Xishuangbanna, a tropical region in East Asia, and 20 species from 16 genera of pteridophytes were collected for this study. The morphology and production of their phytoliths were observed in detail, and a statistical analysis was conducted. Results revealed significant differences in both the production and morphology of phytoliths among species. Nine genera were identified as typical phytolith producers, with a total of 27 distinct morphotypes. We also identified potential diagnostic morphotypes of phytolith with taxonomic significance in 10 species. Among them, E<span>PIDERMAL OVATE ORNATE</span> and C<span>YLINDRICAL VERRUCATE</span> exhibited distinct characteristics and were produced in high quantities within plants, making these phytoliths the most promising morphotypes for classification. Meanwhile, the phytolith data encompassing 258 pteridophyte species was amassed in the present study. This study increased new information on the morphology of pteridophyte phytoliths in tropical regions, thereby offering pivotal insights for the utilization of pteridophyte phytoliths in research fields such as taxonomy, archaeology, and paleoecology.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"336 ","pages":"Article 105313"},"PeriodicalIF":1.7,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of Yunnan pine (Pinus yunnanensis) forest since the Last Glacial Maximum in central Yunnan, SW China","authors":"Zekai Pan ,&nbsp;Qifa Sun ,&nbsp;Min Wang ,&nbsp;Hongwei Meng ,&nbsp;Linpei Huang ,&nbsp;Caiming Shen","doi":"10.1016/j.revpalbo.2025.105311","DOIUrl":"10.1016/j.revpalbo.2025.105311","url":null,"abstract":"<div><div>In recent decades, the influence of climate change and human activities on forests intensified, however, their relative impacts on forest ecosystems remain ambiguous. It is thus essential to elucidate the effects of climate change and human disturbances on the dynamics of different forests. Here we selected the forest of Yunnan pine (YNP) (<em>Pinus yunnanensis</em>), an endemic tree species in Southwest China as an instance, to examine its dynamics since the Last Glacial Maximum (LGM) in central Yunnan where it predominantly occurs, using fossil <em>Pinus</em> pollen percentages and its estimated plant abundances in four lake catchments, central Yunnan. Our study reveals that the dynamics of YNP forests (YNPFs) were principally associated with climatic conditions at 20,000–2500 cal. a BP, whereas the dynamics of YNPFs after 2500 cal. a BP were significantly affected by human activities such as agriculture as well as the extraction and processing of mineral resources in central Yunnan. A long-term and big deforestation occurred at 2500–800 cal. a BP, which was caused by human activities. The restoration of YNPFs in central Yunnan after 800 cal. a BP was predominantly attributed to the natural succession of the secondary vegetation, and reforestation with the aid of ecological protection policies at the end of the 20th century has made its contribution to the recovery of YNPFs in recent decades. Climatic conditions driven by monsoon intensity and seasonal insolation as well as human activities are major factors controlling the dynamics of YNPFs in central Yunnan. Especially, the impact of human activities on YNPFs became more pronounced over the past 2500 years. Our findings not only provide a reference for understanding the interrelationships among forests, ecological environments, climate change, and human activities in central Yunnan, but also offer scientific data for making sustainable forest management policies and ecological conservation strategies.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"336 ","pages":"Article 105311"},"PeriodicalIF":1.7,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New palynological data from Maniamba Basin, Mozambique (Karoo): Correlations and implications for Lopingian floristic ecosystem reconstruction","authors":"Nhamutole Nelson ,&nbsp;M. Bamford ,&nbsp;P.A. Souza ,&nbsp;C.M. Félix ,&nbsp;D.A. Carmo ,&nbsp;A. Zimba ,&nbsp;P. Bande","doi":"10.1016/j.revpalbo.2025.105310","DOIUrl":"10.1016/j.revpalbo.2025.105310","url":null,"abstract":"<div><div>Two borehole cores (JOG16N-5 and JOG16N-7) from the Maniamba Basin, northern Mozambique (central Gondwana) were studied for palynology. As a result, five palynoassemblages were identified from JOG16N-5 (T1, T2, T3, T4, T5) whereas only three were identified for the latter borehole (B1, B2 and B3). Palynoasssemblages T1, B1, B2, B3 were assigned to Wuchiapingian whereas the assemblages T2, T2, T3, T4 and T5 were are assigned to Changhsingian.</div><div>The age was assigned based on the common occurrence of Lopingian taxa (e.g., <em>Guttulapollenites</em>, <em>Alisporites</em>, <em>Weylandites</em>, <em>Cycadopites</em>, <em>Marsupipollenites, Scheuringipollenites, Protohaploxypinus,</em> and <em>Striatopodocarpites</em>) together with abundant occurrence of stratigraphically important taxa, <em>Thymospora pseudothiessenii</em> as well as <em>Osmundacidites senectus.</em> Typical Gondwana vegetation is observed in both cores and is characterised by dominance of pollen grains assigned to the <em>Protohaploxypinus</em> and <em>Striatopodocarpites</em> genera whereas the monosaccate pollen indicators of upland vegetation are rare. Palynomorph indicators of a lowland setting are common and include Ginkgoales, Filicopsida, sphenopsids, and lycopsids that can be interpreted as the existence of a vast lowland fluvial setting together with floodplains and wetlands in the Basin. Yet, variations in lithofacies indicate a change in the dynamic of the drainage system that prevailed during the Lopingian in the Maniamba Basin. Furthermore, similar palynoevents in Lopingian northern Karoo-aged basins of south-central Africa, and central Gondwana basins from Madagascar, India, and Antarctica are well correlated. However, in contrast, some distinct Lopingian palynoevents are observed with southern Karoo-aged basins which could suggest the existence of tectonic barriers that prevented floral exchange thus, confirming intra-Gondwanan floristic provincialism.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"336 ","pages":"Article 105310"},"PeriodicalIF":1.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}