Review of Palaeobotany and Palynology最新文献

Paleoecological and paleogeographical characterization of Portalites Hemer & Nygreen, 1967 in the Gondwanan record 冈瓦南记录中Portalites的古生态古地理特征。Hemer & Nygreen, 1967

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-05-15 DOI: 10.1016/j.revpalbo.2025.105374

Tainara Caroline de Aguiar Medeiros, Paulo A. Souza, Cristina Moreira Félix, Rafael R. Bender

{"title":"Paleoecological and paleogeographical characterization of Portalites Hemer & Nygreen, 1967 in the Gondwanan record","authors":"Tainara Caroline de Aguiar Medeiros, Paulo A. Souza, Cristina Moreira Félix, Rafael R. Bender","doi":"10.1016/j.revpalbo.2025.105374","DOIUrl":"10.1016/j.revpalbo.2025.105374","url":null,"abstract":"<div><div><em>Portalites</em> is a genus characterized by circular spores with a functional pore and a smooth or ornamented surface, which can be attributed to the kingdom Fungi. The species involved are abundantly found in palynological preparations of interglacial and post-glacial deposits from Carboniferous and Permian of Gondwana, but they are also found locally up to the Triassic. The genus includes five species: <em>Portalites confertus</em> (type species), <em>P. gondwanensis</em>, <em>P. baculus</em>, <em>P. niger</em>, and <em>P. rigidus</em>. Materials derived from the Amazonas (Monte Alegre Formation) and the Paraná basins (Itararé Group and Rio Bonito Formation) in Brazil, ranging from the Pennsylvanian to the Cisuralian, were directly analyzed to understand the association of <em>Portalites</em> with the local flora. We observed that the studied species are primarily associated with Lycopsida and Filicopsida. Through the integration of lithological data, we identified that <em>Portalites</em> predominantly occurs in fine-grained sediments, indicative of low-energy, humid environments, and in proximity to freshwater or brackish conditions. In terms of paleogeography, the species exhibits its widest distribution in the Gondwana basins during the Pennsylvanian and Cisuralian.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"341 ","pages":"Article 105374"},"PeriodicalIF":1.7,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071113","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

Resilient gymnosperms: reassessing floral dynamics at the permian–triassic extinction in Meishan 弹性裸子植物：重新评估梅山二叠纪-三叠纪物种灭绝的花卉动态

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-05-13 DOI: 10.1016/j.revpalbo.2025.105373

Elke Schneebeli-Hermann , Francesca Galasso

{"title":"Resilient gymnosperms: reassessing floral dynamics at the permian–triassic extinction in Meishan","authors":"Elke Schneebeli-Hermann , Francesca Galasso","doi":"10.1016/j.revpalbo.2025.105373","DOIUrl":"10.1016/j.revpalbo.2025.105373","url":null,"abstract":"<div><div>The impact of the Permian–Triassic mass extinction on terrestrial plant diversity and ecosystems is still controversially discussed. While for numerous plant fossil records, particularly those from terrestrial sites, adequate dating is unfeasible, for plant microfossil records, deposited in marine environments, independent biostratigraphic dating is usually possible. Since the ratification of the Global Stratotype Section and Point (GSSP) for the Permian–Triassic boundary in Meishan, a plethora of not only palynological data but also precise geochronological ages, high-resolution geochemical and biostratigraphic datasets are available. Here, we aim to revise the palynological data published by Ouyang & Utting in 1990 in the current geochronological framework. Their three initially described assemblage zones yield a wealth of information with respect to depositional environment and vegetation composition- from an off-shore Permian setting to a more proximal setting in the Triassic. To date, the comparison of the palynological data with the carbon isotope record, current lithostratigraphy, and U/Pb ages indicates that gymnosperm-dominated vegetation thrived during and after the Permian–Triassic extinction event in the continental area near Meishan.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"341 ","pages":"Article 105373"},"PeriodicalIF":1.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071114","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

New Mississippian materials of the lycopsid rootstock Stigmaria Brongniart from South China: Evidence for anatomical conservatism in this fossil-genus 华南石松砧木的密西西比新材料：该化石属解剖保守性的证据

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-05-08 DOI: 10.1016/j.revpalbo.2025.105363

Qiqi Yang , Bingxin Li , Jiashu Wang , Pu Huang , Le Liu , Jinzhuang Xue

{"title":"New Mississippian materials of the lycopsid rootstock Stigmaria Brongniart from South China: Evidence for anatomical conservatism in this fossil-genus","authors":"Qiqi Yang , Bingxin Li , Jiashu Wang , Pu Huang , Le Liu , Jinzhuang Xue","doi":"10.1016/j.revpalbo.2025.105363","DOIUrl":"10.1016/j.revpalbo.2025.105363","url":null,"abstract":"<div><div>The fossil-genus <em>Stigmaria</em> Brongniart represents the underground rooting system of arborescent lycopsids, which were important elements in coal-swamp forests during the Carboniferous to Permian periods. The morphology and anatomy of <em>Stigmaria</em> have been extensively studied, mainly based on well-preserved materials from the Pennsylvanian of Euramerica, but knowledge about its pre-Pennsylvanian characters, taxonomy, and evolutionary history remains to be expanded. Here, new materials of <em>Stigmaria</em> are described from the Visean (Mississippian) Xiangbai Formation of Longli, Guizhou, southwestern China and are classified into <em>Stigmaria</em> cf. <em>S</em>. <em>ficoides</em> (Sternberg) Brongniart. Our plant is characterized by navel-shaped rootlet scars, which are arranged helically around rhizomorphs. Its anatomy shows a solenostele with endarch primary xylem and radially aligned secondary xylem, which is divided into wedge-shaped segments by rootlet traces. The cortex is divided into five zones, but there is no periderm. Rootlet vascular bundles are triangular monarch, protruding from the inner cortex to the rhizomorph surface. Our find represents one of the two earliest records of <em>Stigmaria</em> with anatomy preserved. The other Visean record (Glenarbuck, England) is represented by limited material, and thus many more anatomical features demonstrated in our plant are first known in the pre-Pennsylvanian <em>Stigmaria</em>. These Visean records demonstrate great similarities in anatomy with the Pennsylvanian and Permian materials of <em>Stigmaria ficoides</em>, indicating anatomical conservatism and long-term evolutionary stasis in this fossil-genus.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"340 ","pages":"Article 105363"},"PeriodicalIF":1.7,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948197","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

Palynoflora of the Araripe and Jatobá basins (Brazil) during the Early Cretaceous (late Aptian): Biostratigraphy and depositional controls

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-30 DOI: 10.1016/j.revpalbo.2025.105370

Juan David Vallejo , Regina Buarque Gusmão , Alessandra Santos , Claus Fallgatter , Virgínio Henrique de Miranda Lopes Neumann , Marcelo de Araujo Carvalho , Enelise Katia Piovesan

{"title":"Palynoflora of the Araripe and Jatobá basins (Brazil) during the Early Cretaceous (late Aptian): Biostratigraphy and depositional controls","authors":"Juan David Vallejo , Regina Buarque Gusmão , Alessandra Santos , Claus Fallgatter , Virgínio Henrique de Miranda Lopes Neumann , Marcelo de Araujo Carvalho , Enelise Katia Piovesan","doi":"10.1016/j.revpalbo.2025.105370","DOIUrl":"10.1016/j.revpalbo.2025.105370","url":null,"abstract":"<div><div>The Santana Group, Upper Aptian, records the post-rift stage of the Araripe and Jatobá basins. The palynological zones and its geological evolution is still controversial and requires review as new information becomes available. Palynological analysis play a crucial role in petroleum geology in Brazilian basins, as it allows for the reconstruction of paleoenvironmental conditions, stratigraphic correlation, and the definition of ages and potential areas for hydrocarbon exploration. This study integrates sedimentological and palynological data from drill cores in the Araripe and Jatobá basins, which consist of siliciclastic rocks intercalated with limestons e and evaporites intervals. Our analysis is used here to refine the temporal interval and depositional conditions of the late Aptian sequences of such basins. Palynological analysis resulted in the identification of 159 taxa and suggests the presence of the <em>Sergipea variverrucata</em> Biozone (P-270). The late Aptian is defined by their last occurrence of <em>S. variverrucata</em>. The presence of marine palynomorphs (e.g., <em>Subtilisphaera</em> sp. and foraminiferal test linings) indicates marine incursions into the basins. Based on palynological associations and sedimentary facies, the Santana Group consists of a fluvio-deltaic transitioning from a semi-enclosed lagoon and shallow marine environments deposited during the Early Aptian. Additionally, foraminiferal test linings in samples from the Crato Formation have been recorded, reinforcing marine incursions into the basins.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"340 ","pages":"Article 105370"},"PeriodicalIF":1.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943361","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

Middle Jurassic plant fossils from the East Gobi Basin (Mongolia) 蒙古东戈壁盆地中侏罗世植物化石

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-30 DOI: 10.1016/j.revpalbo.2025.105371

A. Muraviev , J. Kvaček , L. Uranbileg , D. Otgonsuren , J. Dashkhorol , E. Kustatscher

{"title":"Middle Jurassic plant fossils from the East Gobi Basin (Mongolia)","authors":"A. Muraviev , J. Kvaček , L. Uranbileg , D. Otgonsuren , J. Dashkhorol , E. Kustatscher","doi":"10.1016/j.revpalbo.2025.105371","DOIUrl":"10.1016/j.revpalbo.2025.105371","url":null,"abstract":"<div><div>This study presents the first report on Middle Jurassic plant fossils from the Khamarkhoovor Formation, Dovtsog Khudag area, East Gobi Basin, Mongolia. 20 species of fossil plants from 11 genera have been identified, including liverworts, horsetails, ferns, cycadophytes, ginkgophytes, czekanowskialeans and conifers.</div><div>Based on sedimentological analysis and plant assemblages, we interpret the depositional environment as alluvial plain and swamp. Alluvial plain deposits are characterised by the presence of ginkgophytes, cycads (<em>Nilssonia</em>) and conifers (<em>Pityophyllum</em>). The swamp environment is characterised by Czekanowskiales (<em>Czekanowskia, Phoenicopsis</em>), horsetails (<em>Equisetites</em>) and ferns (<em>Coniopteris, Cladophlebis</em>).</div><div>The most significant species for phytostratigraphy are <em>Coniopteris snigirevskiae</em>, <em>Cladophlebis haiburnensis</em>, <em>Cl. akulovii</em> (ferns), <em>Czekanowskia (Subg. Vachrameevia) teslenkoi</em>, and <em>Phoenicopsis (Subg. Phoenicopsis) angustifolia.</em> The fossil plant remains, combined with published data on the phytostratigraphy of Jurassic sedimentary basins in Mongolia, as well as adjacent regions of China and Siberia, suggest that the studied deposits of the Khamarkhoovor Formation belong to the Middle Jurassic, most likely the Aalenian–Bajocian stages. The studied flora corresponds to the Siberian Floristic Province, which comprises warm-temperate elements and indicates seasonal climatic fluctuations.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"340 ","pages":"Article 105371"},"PeriodicalIF":1.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904310","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

Serpukhovian (Upper Mississippian) red algae from the type Mississippian region of southern Illinois, U.S.A 来自美国伊利诺斯州南部密西西比型地区的Serpukhovian（上密西西比）红藻

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-26 DOI: 10.1016/j.revpalbo.2025.105362

Qingyi Sheng , Paul Brenckle

引用次数: 0

Diverse organic-walled microfossils from the basal Cambrian Yanjiahe Formation in the eastern Three Gorges area 三峡东部基底寒武系延家河组有机壁微化石多样性

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-25 DOI: 10.1016/j.revpalbo.2025.105361

Shan Chang , Lei Zhang , Qinglai Feng

{"title":"Diverse organic-walled microfossils from the basal Cambrian Yanjiahe Formation in the eastern Three Gorges area","authors":"Shan Chang , Lei Zhang , Qinglai Feng","doi":"10.1016/j.revpalbo.2025.105361","DOIUrl":"10.1016/j.revpalbo.2025.105361","url":null,"abstract":"<div><div>Acritarchs and cyanobacteria, as critical primary producers, are essential for our understanding of marine ecosystem during the Ediacaran-Cambrian interval. This study investigates cherts from the Yanjiahe Formation in eastern Three Gorges area to elucidate the components of primary producers of the basal Cambrian recorded in chert Lagerstätten. High-resolution sampling revealed abundant organic-walled microfossils in thin sections, including eight genera, eight species assigned to acritarchs, coccoidal microfossils and cyanobacteria: the AHC assemblage (<em>Asteridium tornatum</em>, <em>Heliosphaeridium ampliatum</em>, <em>Comasphaeridium annulare</em>), <em>Yurtusia uniformis</em>, <em>Dictyotidium</em>? sp., <em>Archaeophycus yunnanensis</em>, <em>Myxococcoides</em> sp., and <em>Megathrix longus</em>. These diverse microfossils indicate a gradual diversification of phytoplankton following the end-Ediacaran extinction. Their proliferation not only enriches the primary producer composition of the Yanjiahe biota but also implies their potential contribution to fueling metazoan radiation within the Cambrian marine ecosystem.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"340 ","pages":"Article 105361"},"PeriodicalIF":1.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913018","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

Qualitative LM and SEM study of the Messel palynoflora: Part II. Fabales to Caryophyllales 禾草的定性LM和SEM研究（二）。寓言属到石蕊属

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-22 DOI: 10.1016/j.revpalbo.2025.105349

Johannes M. Bouchal , Christian Geier , Silvia Ulrich , Volker Wilde , Olaf K. Lenz , Reinhard Zetter , Friðgeir Grímsson

{"title":"Qualitative LM and SEM study of the Messel palynoflora: Part II. Fabales to Caryophyllales","authors":"Johannes M. Bouchal , Christian Geier , Silvia Ulrich , Volker Wilde , Olaf K. Lenz , Reinhard Zetter , Friðgeir Grímsson","doi":"10.1016/j.revpalbo.2025.105349","DOIUrl":"10.1016/j.revpalbo.2025.105349","url":null,"abstract":"<div><div>This second part of the re-investigation of the Eocene Messel palynoflora, using combined light- and scanning electron microscopy (single-grain method), comprises pollen of the Fabales to Caryophyllales. During our study, we discovered one Fabales pollen type, eight Rosales, 20 Fagales, ten Malpighiales, two Myrtales, twelve Sapindales, eleven Malvales, three Santalales, and a single Caryophyllales pollen type. New taxa in the Messel palynoflora includes <em>Erythrina</em> (Fabaceae) and Moraceae. Continuing to compare the palynoflora and meso/macroflora, we notice that additional six families only occur in the microflora, and six other families are represented only by leaf/fruit/seed fossils. Pursuing our assessment of the pros and cons of the combined versus classical quantitative light microscopy studies, we show that the combined method continues to provide a higher diversity of pollen taxa from the plant groups encountered. We report a similar pollen diversity for the orders Fabales to Charyophyllales from a single sample, as previously reported from conventional LM analyses of multi-sampled drill cores. Our combined LM/SEM approach revealed several new floral elements and enabled us to revise several previous botanical affinities based on additional morphological characters observed with SEM.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"341 ","pages":"Article 105349"},"PeriodicalIF":1.7,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084156","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

Palaeobotanical and genetic data highlight the vulnerability of Picea in peninsular Italy 古植物学和遗传学数据强调了意大利半岛云杉的脆弱性

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-21 DOI: 10.1016/j.revpalbo.2025.105360

Camilla Avanzi , Federico Di Rita , Fabrizio Michelangeli , Juan Ochando , Paolo Piovani , Giovanni Giuseppe Vendramin , Donatella Magri , Andrea Piotti

{"title":"Palaeobotanical and genetic data highlight the vulnerability of Picea in peninsular Italy","authors":"Camilla Avanzi , Federico Di Rita , Fabrizio Michelangeli , Juan Ochando , Paolo Piovani , Giovanni Giuseppe Vendramin , Donatella Magri , Andrea Piotti","doi":"10.1016/j.revpalbo.2025.105360","DOIUrl":"10.1016/j.revpalbo.2025.105360","url":null,"abstract":"<div><div>Rear edge populations might be of disproportionate importance for the adaptation of temperate forest tree species to climate change. The study of past demographic dynamics and their effects on extant genetic diversity are therefore keys to understand how to manage these potentially relevant forest genetic resources. Here we combine a comprehensive review of palaeobotanical evidence from peninsular Italy throughout the Quaternary with new genetic data for <em>Picea abies</em>, focusing on all known rear edge populations from the boundary zone between the Alps and the northern Apennines, to shed light on timing and modes of the fragmentation processes leading these populations close to extirpation. Our data show that <em>Picea abies</em> experienced a complex Quaternary history mirrored by a concomitantly complex genetic structure. The population in the southwestern Alps and the two populations living in the northwestern Apennines appear to be the last remnants of a much wider Pleistocene distribution. During the last glacial period and the postglacial they had distinct spatiotemporal dynamics. These peripheral populations are characterized by peculiar genetic features, a substantial pairwise genetic differentiation and general genetic impoverishment, with a ∼20% reduction of their allelic richness with respect to other Alpine populations.</div><div>These results collectively indicate that the southernmost Italian populations of <em>Picea abies</em>, still present in the northern Apennines and in the southwestern Alps, are extremely vulnerable to extirpation, as already was the case with populations that progressively disappeared from southern and central Italy in the Middle and Upper Pleistocene, respectively, and from the north-eastern Apennines during the late Holocene.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"339 ","pages":"Article 105360"},"PeriodicalIF":1.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877174","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 new species of Stutzeliastrobus (Cupressaceae) from the Early Cretaceous of the Guyang Basin, northern China, and its paleoenvironmental implications 固阳盆地早白垩世一新种（柏科）及其古环境意义

IF 1.7 3区地球科学

Review of Palaeobotany and Palynology Pub Date : 2025-04-21 DOI: 10.1016/j.revpalbo.2025.105353

Xiaohui Xu , Jiangxue Deng , Liuyin Yang , Yeming Zhao , Stephen McLoughlin

{"title":"A new species of Stutzeliastrobus (Cupressaceae) from the Early Cretaceous of the Guyang Basin, northern China, and its paleoenvironmental implications","authors":"Xiaohui Xu , Jiangxue Deng , Liuyin Yang , Yeming Zhao , Stephen McLoughlin","doi":"10.1016/j.revpalbo.2025.105353","DOIUrl":"10.1016/j.revpalbo.2025.105353","url":null,"abstract":"<div><div>A cupressaceous conifer, <em>Stutzeliastrobus araucarioides</em> comb. nov. is described from the Lower Cretaceous Guyang Formation in the Guyang Basin, central Inner Mongolia, northern China. <em>Stutzeliastrobus araucarioides</em> is known based on well-preserved leafy shoots with attached ovuliferous cones, and is characterized by elongate ovuliferous cones with numerous helically arranged, flat cone-scale complexes. Each complex is composed of a fused bract and ovuliferous scale and bears two seeds on the proximal to middle region. <em>Stutzeliastrobus araucarioides</em> is most similar in gross morphology to extant <em>Taiwania cryptomerioides</em>, but differs by having many more bract-scale complexes per cone. The features of <em>S. araucarioides</em> confirm that <em>Stutzeliastrobus</em> is closely relared to <em>Taiwania</em>. The new material enriches the fossil record of <em>Stutzeliastrobus</em> and adds to knowledge of the diversity of early Cupressaceae from the Early Cretaceous. Associated fossils and sedimentary facies indicate that <em>S. araucarioides</em> occupied lacustrine-paludal environments that hosted a diverse range of conifers and ginkgoaleans.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"339 ","pages":"Article 105353"},"PeriodicalIF":1.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870564","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