Review of Palaeobotany and Palynology最新文献_第2页

A palynological perspective on a cave: Does pollen content differ in guano deposits within?

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-11 DOI: 10.1016/j.revpalbo.2025.105317

Omer Solak-Amet, Aycan Tosunoglu

{"title":"A palynological perspective on a cave: Does pollen content differ in guano deposits within?","authors":"Omer Solak-Amet, Aycan Tosunoglu","doi":"10.1016/j.revpalbo.2025.105317","DOIUrl":"10.1016/j.revpalbo.2025.105317","url":null,"abstract":"<div><div>Caves formed in some karst regions are important places where bat guano deposits containing abundant and well-presented pollen can be found. These guano deposits reflect the regional vegetation and have the potential to contribute to the reconstruction of paleovegetation by palynology. However, the exact mechanisms by which this pollen accumulation occurs and which factors affect it are not yet clear. This study pioneers the analysis of palynological data derived from annual guano accumulation, shedding light on how pollen distribution may take place in the cave from NW Turkey. In guano samples collected from various parts of the cave; notably, <em>Quercus</em>, <em>Pinus</em>, Poaceae, Cupressaceae/Taxaceae, <em>Pistacia</em>, <em>Cuscuta</em>, <em>Silene</em>, <em>Fraxinus</em>, <em>Primula</em>, <em>Olea</em>, and <em>Abies</em> emerged as the primary pollen components in the guano. The majority of the taxa represented in guano samples consist of pollen grains belonging to anemophilous plants; however, pollen belonging to entomophilous taxa in guano were much more abundant than those found in the atmosphere. The observed variations in total numbers and statistically significant differences among pollen types between sampling stations in the cave indicate that pollen ratios and distributions in the guano differ within the cave. Although palynological studies in cave guano sediments are quite limited, this study emphasizes the need to change the perspective on the sampling pattern within the cave. Therefore, further research in this area is essential.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105317"},"PeriodicalIF":1.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642909","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}

引用次数: 0

A freshwater palynological assemblage from the Hirnantian of Saudi Arabia

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-11 DOI: 10.1016/j.revpalbo.2025.105322

Paul Strother , Marco Vecoli , Christian Cesari , Charles H. Wellman

{"title":"A freshwater palynological assemblage from the Hirnantian of Saudi Arabia","authors":"Paul Strother , Marco Vecoli , Christian Cesari , Charles H. Wellman","doi":"10.1016/j.revpalbo.2025.105322","DOIUrl":"10.1016/j.revpalbo.2025.105322","url":null,"abstract":"<div><div>A set of samples from the Hirnantian of Saudi Arabia, all of which contain the freshwater euglenid fossil, <em>Moyeria</em> Thusu, were examined for their organic-walled microfossil (OWM) content. Although these samples are dominated by sphaeromorph acritarchs of unknown phylogenetic and geographic provenance, they also contain members of both the Hydrodictyaceae (<em>Proteolobus</em>, <em>Scenedesmus, Tapetisphaerites</em>) and the Zygnemataceae (?<em>Lecaniella</em>, <em>Stigmozygodites</em>,?<em>Zygnema,</em> and a new form, <em>Stigmatocystia</em>, possibly related to <em>Gelasinicysta</em>). The closest living members of all these green algae are restricted to fresh water settings. Their recovery here extends the geological record of first occurrences for several taxa, including members of the Zygnemataceae, the sister group to the embryophtyes, which are here shown to be coeval as far back as the Late Ordovician. Bona fide marine palynomoprhs (i.e., acritarchs) are extremely rare in the assemblage, reinforcing the idea of a predominantly freshwater setting. Cryptospores (<em>Velatitetras</em>, <em>Abditusdyadus</em>, <em>Rimosotetras</em> and <em>Tetrahedraletes</em>) are common, but other than a single specimen of <em>Imperfectotriletes</em>, and a poorly preserved specimen of <em>Ambitisporites</em>, the lack of trilete spores in this deposit is curious, especially given reports of their prior antiquity. The association of some envelope-enclosed tetrads and dyads with freshwater algae lends support to prior proposals that consider <em>Quadrisporites</em> and related forms to be classified with the chlorophycean green algae, not as cryptospores.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105322"},"PeriodicalIF":1.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679048","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}

引用次数: 0

Late Middle Pleistocene palynostratigraphy and landscape evolution in Western and Central Europe: Will the real Holsteinian Please Stand Up?

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-06 DOI: 10.1016/j.revpalbo.2025.105319

Filip Van Beirendonck, Cyriel Verbruggen

{"title":"Late Middle Pleistocene palynostratigraphy and landscape evolution in Western and Central Europe: Will the real Holsteinian Please Stand Up?","authors":"Filip Van Beirendonck, 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}

引用次数: 0

Environmental drivers of fungal non-pollen palynomorphs in European temperate forest

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-05 DOI: 10.1016/j.revpalbo.2025.105318

Marcelina Zimny, Patryk Czortek, Bogdan Jaroszewicz

{"title":"Environmental drivers of fungal non-pollen palynomorphs in European temperate forest","authors":"Marcelina Zimny, Patryk Czortek, 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}

引用次数: 0

A gondwanan Jurassic bryoflora? Anatomically preserved bryophytes in geothermal paleoenvironments from the Jurassic of Patagonia, Argentina

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-05 DOI: 10.1016/j.revpalbo.2025.105321

Adolfina Savoretti , Ignacio H. Escapa , Alexander C. Bippus , Juan L. García Massini , Diego Guido

{"title":"A gondwanan Jurassic bryoflora? Anatomically preserved bryophytes in geothermal paleoenvironments from the Jurassic of Patagonia, Argentina","authors":"Adolfina Savoretti , Ignacio H. Escapa , Alexander C. Bippus , Juan L. García Massini , 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. >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}

引用次数: 0

A tropical rainforest biome once existed in India at the K-Pg: Evidence from ‘one-vessel’ arecoid palms

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-03 DOI: 10.1016/j.revpalbo.2025.105316

Mahasin Ali Khan , Robert A. Spicer , Tao Su , Kaustav Roy

引用次数: 0

Unusual chytrid-like fossils in a land plant cell from the Rhynie cherts

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-03-03 DOI: 10.1016/j.revpalbo.2025.105315

Michael Krings

引用次数: 0

A new Ephedra macrofossil from the Early Cretaceous Yixian Formation, Liaoning Province, China and its evolutionary significance

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-02-28 DOI: 10.1016/j.revpalbo.2025.105314

Peishan Li , Min Deng , Chen Hou , Yaowu Xing

{"title":"A new Ephedra macrofossil from the Early Cretaceous Yixian Formation, Liaoning Province, China and its evolutionary significance","authors":"Peishan Li , Min Deng , Chen Hou , 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}

引用次数: 0

Study on macro- and sporemorphology of a new species of Coniopteris (Dicksoniaceae) from the Middle Jurassic of western Liaoning, Northeast China

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-02-28 DOI: 10.1016/j.revpalbo.2025.105312

Fang-Yu Li , Xiao Tan , Yun-Yan Xiu , Wen-Tao Liu , Meng-Yu Chen , Ning Tian

{"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 , Xiao Tan , Yun-Yan Xiu , Wen-Tao Liu , Meng-Yu Chen , 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}

引用次数: 0

The morphology of phytoliths for tropical pteridophytes in southwestern China

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-02-28 DOI: 10.1016/j.revpalbo.2025.105313

Chu-Jia Guo , Xin-Wen Zhang , Jian Huang , Harald Schneider , Yao-Wu Xing , Tao Su , Hong-Mei Liu

{"title":"The morphology of phytoliths for tropical pteridophytes in southwestern China","authors":"Chu-Jia Guo , Xin-Wen Zhang , Jian Huang , Harald Schneider , Yao-Wu Xing , Tao Su , 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}

引用次数: 0