Lyudmila Kocheva , Anatoly Karmanov , Olga Telnova , Alexey Gomankov , Vladimir Lutoev
{"title":"Chemosystematic studies of Devonian coal-forming plants: Barzas Orestovia-like plants compressions","authors":"Lyudmila Kocheva , Anatoly Karmanov , Olga Telnova , Alexey Gomankov , Vladimir Lutoev","doi":"10.1016/j.revpalbo.2025.105452","DOIUrl":"10.1016/j.revpalbo.2025.105452","url":null,"abstract":"<div><div><em>Orestovia</em>-like plants are of great scientific and practical interest for various fields of natural science, forming the most ancient unique Devonian Barzas coals in the Kuznetsk Basin, Russia. However their natural affinity (higher plants or algae) remains disputable. This work studies Barzas compressions of <em>Orestovia</em>-like plants from the standpoint of chemosystematics. We proposed to use the aromatic biopolymer lignin, which is included in all higher terrestrial plants, as a marker of organic matter. To prove the presence of lignin and establish its structure, a complex of physical and chemical methods was used: FTIR and EPR spectroscopy, pyrolytic gas chromatography–mass spectrometry, scanning electron microscopy, X-ray fluorescence and X-ray phase analysis. Based on the obtained results, we found the presence of transformation products of compositionally homogeneous <em>p</em>-coumaric protolignin in the substance of plant remains. The obtained data do not exclude the validity of the hypothesis that the Devonian <em>Orestovia</em>-like plants belong to higher plants.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105452"},"PeriodicalIF":1.7,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219541","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}
Natalya Nosova , Peter R. Crane , Gongle Shi , Ksenia Domogatskaya
{"title":"Cupule-bearing cones of Jarudia (Doyleales) and associated leaves from the Early Cretaceous of the New Siberian Islands, Arctic Russia","authors":"Natalya Nosova , Peter R. Crane , Gongle Shi , Ksenia Domogatskaya","doi":"10.1016/j.revpalbo.2025.105451","DOIUrl":"10.1016/j.revpalbo.2025.105451","url":null,"abstract":"<div><div>A new species of cupule-bearing seed cone assigned to <em>Jarudia</em> (Doyleales) is described from the Lower Cretaceous (Aptian–Albian) Balyktakh Formation of Kotelnyi Island in the New Siberian Islands. The new species, <em>Jarudia borealis</em> sp. nov. is an elongated, cylindrical seed cone consisting of a main axis with helically arranged, densely spaced bract-cupule axis complexes, each of which terminates in a single incurved cupule. Cupule-bearing stalks are thin proximally where they are fused with a narrow, elongated bract. Above, they are free from the bract, gradually widen toward the tip and are curved adaxially relative to the main axis. Each cupule is formed by the wide flattened distal part of the cupule stalk, one median and two lateral flaps, and is quadrangular in transverse section. The flattened cupule stalk and three flaps are fused at the apex of the cupule but are free toward the base. Micro-CT scans reveal that most cupules are empty, but maceration of remaining carbonaceous material produced pieces of the cupule cuticle, as well as fragments of the nucellar cuticle and megaspore membrane. Stomata, occasionally present in the outer epidermis of the cupules, are haplocheilic, with 5–8 subsidiary cells. The megaspore membrane is two layered comprising a foot layer and branched, interconnected bacula. The cupule-bearing cones of <em>Jarudia borealis</em> sp. nov. occur closely associated with numerous remains of linear leaves described as <em>Phoenicopsis arcticus</em> sp. nov., as well as rare leaf fragments of <em>Pityophyllum</em> sp. and <em>Ginkgoites</em> sp.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105451"},"PeriodicalIF":1.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158118","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 data on medullosalean foliage Odontopteris schlotheimii from the uppermost Carboniferous–lowermost Permian of central and eastern Europe","authors":"Zbyněk Šimůnek , Christopher J. Cleal","doi":"10.1016/j.revpalbo.2025.105450","DOIUrl":"10.1016/j.revpalbo.2025.105450","url":null,"abstract":"<div><div>The stomatal structure of the medullosalean frond species <em>Odontopteris schlotheimii</em> is documented for the first time. This supports the view that it is taxonomically distinct from the morphologically similar but rather older frond-species <em>Odontopteris cantabrica.</em> Evidence is also presented that supports the view that the types of <em>Neuropteris pseudoblissii</em> are conspecific with <em>O. schlotheimii</em>.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105450"},"PeriodicalIF":1.7,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265929","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}
Michael H. Stephenson , Shuzhong Shen , Junxuan Fan , Linshu Hu , Jin Qi
{"title":"Effect of steep climate gradient on palynological assemblages on the Arabian part of the Tethys shore in two Carboniferous-Permian ice age time slices","authors":"Michael H. Stephenson , Shuzhong Shen , Junxuan Fan , Linshu Hu , Jin Qi","doi":"10.1016/j.revpalbo.2025.105448","DOIUrl":"10.1016/j.revpalbo.2025.105448","url":null,"abstract":"<div><div>Palaeoclimate modelling of two time slices, Serpukhovian to Bashkirian (Carboniferous), and Gzhelian to early Sakmarian (latest Carboniferous to Early Permian), indicates marked changes in palynological assemblages from 30°S and 50°S across the Gondwana and Tethys margin. Both time slices indicate a distinct cold climate assemblage dominated by cheilocardioid spores, while a warmer climate with mean annual temperature above 19 °C appears to encourage the growth of plants that produced Euramerican coal belt spores such as <em>Vestispora fenestrata</em> and <em>Reticulatisporites polygonalis</em>. It is possible that the parent plants of cingulicamerate spores such as <em>Lundbladispora</em> spp., though tolerant of cold conditions, were not tolerant of the coldest conditions (for example below 0 °C).</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105448"},"PeriodicalIF":1.7,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095657","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":"First record of Cyathocarpus (Marattiales) in Gondwana: A new species from the Permian of Patagonia, Argentina","authors":"Gonzalo Rodriguez Rizk, Bárbara Cariglino","doi":"10.1016/j.revpalbo.2025.105447","DOIUrl":"10.1016/j.revpalbo.2025.105447","url":null,"abstract":"<div><div>Marattialean ferns were key components of Paleozoic wetland ecosystems, yet their biogeographic history in Gondwana remains poorly resolved. While <em>Cyathocarpus</em> is well documented from Euramerica and Cathaysia, no species had been recognized in Gondwana—until now. We describe <em>Cyathocarpus polinensis</em> sp. nov. from the Guadalupian La Golondrina Formation of Patagonia, Argentina, representing the first Gondwanan record of the genus. The species exhibits a distinctive arrangement of synangial rows that do not contact the midvein or pinnule margins and are consistently absent from the apical and basal regions of the pinnules. The midvein is conspicuous, straight, and divides fanwise near the apex; lateral veins bifurcate once, close to the midvein. This discovery extends the paleogeographic range of <em>Cyathocarpus</em> and supports a dispersal scenario from Euramerica into southern Gondwana during the Cisuralian. These findings call for a critical reassessment of comparable Gondwanan taxa and underscore the role of southwestern Gondwana as a refugium and center of marattialean diversification during postglacial climatic recovery.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105447"},"PeriodicalIF":1.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095656","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}
Tomas Ezequiel Pedernera , Cecilia Andrea Benavente
{"title":"Paleobotanical insights from the Santa Clara Arriba Formation (Anisian, Middle Triassic, Cuyana Basin, West Gondwana)","authors":"Tomas Ezequiel Pedernera , Cecilia Andrea Benavente","doi":"10.1016/j.revpalbo.2025.105449","DOIUrl":"10.1016/j.revpalbo.2025.105449","url":null,"abstract":"<div><div>The Santa Clara Arriba Formation is an Anisian unit representing a lacustrine deltaic depositional setting that forms part of the El Peñasco Group Santa Clara sub-basin (Cuyana Basin, Mendoza, Argentina). The objective of this contribution is to present new plant fossil findings and a preliminary taphonomic evaluation of the Santa Clara Arriba Formation. It also includes a comparison and analysis of the paleobotanical record of the Santa Clara Arriba Formation with other units of the El Peñasco Group and Anisian units in Argentina. The plant fossil assemblage of the Santa Clara Arriba Formation comprises Equisetales (<em>Equisetales</em> indet.), Osmundales (<em>Cladophlebis</em> spp.), Marattiales (<em>Danaeopsis</em> sp.), Umkomasiales (<em>Fanerotheca</em> cf. <em>papilioformis</em>), Peltaspermales (<em>Peltaspermum</em> spp.), Coniferales (<em>Pagiophyllum</em> sp.), and gymnosperms of uncertain affinity (undeterminated leaves, ?<em>Cordaicarpus</em> sp., ovules/seeds, and strobili). Remains were recorded in delta-plain facies, and their preservation is attributed to rapid sedimentation and a persistent high-water table. The plant paleocommunities are interpreted as forests dominated by gymnosperms, and an understory comprising Osmundales, and Marattiales, while Equisetales formed riparian communities along water margins. The taxonomic composition of the assemblage is consistent with other Triassic floras from the region. The Santa Clara Arriba Formation provides a valuable opportunity to elucidate the relationship between Anisian vegetation and climate in Gondwana, owing to its paleogeographic setting, well-preserved fossil record, and robust geochronological framework.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105449"},"PeriodicalIF":1.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095655","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}
Alyne Daniele Alves Pimentel , Cristiane Krug , Vanessa Holanda Righetti De Abreu , Marcos Gonçalves Ferreira
{"title":"The role of agroforestry yards in the diet of Melipona (Melikerria) interrupta Latreille, 1811 (Hymenoptera, Apidae) in a terra-firme environment near the confluence of the Amazon and Tapajós Rivers","authors":"Alyne Daniele Alves Pimentel , Cristiane Krug , Vanessa Holanda Righetti De Abreu , Marcos Gonçalves Ferreira","doi":"10.1016/j.revpalbo.2025.105430","DOIUrl":"10.1016/j.revpalbo.2025.105430","url":null,"abstract":"<div><div>This study aimed to identify the botanical origin of <em>Melipona interrupta</em> honey produced in agroforestry backyards (AB) by traditional communities near the confluences of the Amazon and Tapajós Rivers. For comparison purposes, stingless beehives were installed in a secondary forest (SF) environment as well. In all, forty-four honey samples were analyzed from four meliponaries in two areas (AB1 and AB2; SF1 and SF2) between July 2021 and June 2022 in Arapixuna. In AB1, 25 pollen types were found in the honey samples and, in AB2, 22 were found. More than 50% of the pollen types found in the honey samples in the ABs were related to plants present only in the SF, indicating that the bees left the ABs and collected pollen in the SF. The main resources collected by <em>M. interrupta</em> for honey composition were <em>Protium heptaphyllum</em> present in 70% of the samples, followed by <em>Triplaris</em> type (68%), <em>Psidium guajava</em> (52%), <em>Bellucia imperialis</em> and <em>Eugenia biflora</em> (38%) and <em>Tapirira guianensis</em> (34%). The survey of botanical species in the ABs indicated that most plant species were fruit trees; however, the bees visited a low percentage of these plants. When analyzing the SF samples, a behavioral pattern of foraging was observed which was similar to those of the ABs. These data indicate that the two environments studied have melliferous characteristics that favor beekeeping. Moreover, ABs also have advantageous characteristics in relation to the SF, such as improved protection of colonies against invaders/theft of honey and the ease of maintenance of the colonies.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105430"},"PeriodicalIF":1.7,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046184","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":"Terrestrial end-Guadalupian crisis constrained by mid-latitude Permian palynological data from Jimsar, Junggar Basin, China","authors":"Xueqin Wang , Yuewu Sun , Xiao Shi","doi":"10.1016/j.revpalbo.2025.105445","DOIUrl":"10.1016/j.revpalbo.2025.105445","url":null,"abstract":"<div><div>The end-Permian mass extinction and the end-Guadalupian crisis are the most remarkable events in the Permian terrestrial ecosystem. To better understand the end-Guadalupian event in mid-latitude of Pangea in the Northern Hemisphere, palynological investigations are conducted on the terrestrial Permian deposits in the Dalongkou profile of Jimsar, northern Xinjiang, China. Two palynological assemblages are recognized in stratigraphic ascending order, the <em>Cordaitina subrotata</em>–<em>Striatoabieites lipidus</em>–<em>Protowelwitschiapollis exolescus</em> assemblage from the uppermost Lucaogou, Hongyanchi and the lower Quanzijie formations, and the <em>Kraeuselisporites spinulosus</em>–<em>Tuberculatosporites homotubercularis</em>–<em>Potonieisporites turpanensis</em> assemblage from the upper Quanzijie and lowermost Wutonggou formations. Based on the palynological data, the uppermost Lucaogou and Hongyanchi formations are assigned to the Roadian stage, and the lower Quanzijie Formation to the Capitanian stage, and the upper Quanzijie and lowermost Wutonggou formations to the Wuchiapingian stage. Thus, a Wordian-age hiatus is confirmed between the lower Quanzijie Formation and the Hongyanchi Formation on the basis of palynological evidence. The palynofloral succession shows a smooth transition between the Guadalupian and Lopingian palynofloras in the Dalongkou profile of Jimsar, in the Junggar Basin. The end-Guadalupian crisis resulted in a 17% loss of pollen species, indicating that the extinction was on the background level.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105445"},"PeriodicalIF":1.7,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060579","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":"An 11,000-year vegetation and climate record from a subalpine peatland in the Luoxiao Mountains, subtropical Southeast China","authors":"Xin Zhong , Caifeng Cen , Cong Chen , Aiyan Han , Yongjie Tang , Kangyou Huang","doi":"10.1016/j.revpalbo.2025.105442","DOIUrl":"10.1016/j.revpalbo.2025.105442","url":null,"abstract":"<div><div>The evolution of broadleaved forests and their responses to climate changes in subtropical Southeast China remain largely unclear, partly because of the controversies regarding the history of climate (i.e., temperature and monsoonal precipitation) changes during the Holocene. In this study, we integrated pollen and other proxies (including loss on ignition, humification degree, and stable carbon isotope) from a subalpine peatland in the Luoxiao Mountains, to reveal the predominant patterns of vegetation and climate dynamics in mountainous Southeast China. Vegetation at the study site was dominated by <em>Quercus</em>-evergreen and <em>Fagus</em> with relatively flourishing herbs during the early Holocene. A transformation from mixed evergreen–deciduous broadleaved forests to evergreen broadleaved forests occurred between 8200 and 1850 cal. yr BP. The lag of the transformation in response to monsoonal rainfall changes in mountainous regions during the early Holocene can be attributed to thermal limitation. Since 1850 cal. yr BP, broadleaved pollen substantially declined with the expansion of Poaceae and pines, likely reflecting the impact of intensive anthropogenic activities. The expansion of evergreen broadleaved forests from different sites revealed a gradual warming in Southeast China during the Holocene. Additionally, monsoon precipitation in the study area underwent substantial changes, showing a pattern of wetting, sustained humid conditions, subsequent drying, and wetting. Overall, temperature and precipitation during the Holocene were decoupled at the study site, as supported by widely distributed records in mountainous subtropical Southeast China. This may be attributed to the influence of different driving factors on temperature and precipitation.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105442"},"PeriodicalIF":1.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019472","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}
Bingshan Niu , Qijia Li , Hui Jia , Jianhua Jin , Cheng Quan
{"title":"Ilex subg. Prinos (Aquifoliaceae) from the upper Miocene of Beihai, low-latitude China: New insights for phylogeny","authors":"Bingshan Niu , Qijia Li , Hui Jia , Jianhua Jin , Cheng Quan","doi":"10.1016/j.revpalbo.2025.105444","DOIUrl":"10.1016/j.revpalbo.2025.105444","url":null,"abstract":"<div><div>The holly family (Aquifoliaceae) is a monogeneric taxon comprising highly diverse species of <em>Ilex</em> (><!--> <!-->600 species), predominantly distributed in warm, humid regions. However, the phylogeny of <em>Ilex</em> and the evolutionary differentiation of its subgenera, i.e., <em>Ilex</em> subg<em>. Ilex, I.</em> subg<em>. Prinos, and I.</em> subg<em>. Byronia</em>, remain challenging partly due to limited fossil constraints of each subgenus. Previous phylogenetic study was only anchored by the of <em>Ilex</em> subg. <em>Ilex</em>, which is not sufficient to calibrate the differentiation of all subgenera. Here, we report the fossil leaves of <em>Ilex</em> subg. <em>Prinos</em> from the late Miocene Foluo Formation of Beihai, Guangxi, low-latitude China. The fossils are characterized by elliptic leaf in shape with slight serrations on the leaf margin except for the leaf base. The venation is pinnate with secondary veins of 7–8 pairs, while the tertiaries are mixed percurrent. Anatomically, the leaves are hypostomatic with wart-like structures and cyclocytic stomata. Importantly, the anticlinal walls are straight in both upper and lower epidermises. This is the earliest known fossil <em>Ilex</em> subg. <em>Prinos</em> so far, providing a new insight for molecular clock analyses.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"344 ","pages":"Article 105444"},"PeriodicalIF":1.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996828","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}