Review of Palaeobotany and Palynology最新文献

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Rising Himalaya and climate change drive endemism in the Western Ghats: Fossil evidence insights
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-04-04 DOI: 10.1016/j.revpalbo.2025.105348
Harshita Bhatia , Gaurav Srivastava
{"title":"Rising Himalaya and climate change drive endemism in the Western Ghats: Fossil evidence insights","authors":"Harshita Bhatia ,&nbsp;Gaurav Srivastava","doi":"10.1016/j.revpalbo.2025.105348","DOIUrl":"10.1016/j.revpalbo.2025.105348","url":null,"abstract":"<div><div>Endemism, driven by geological and climatic transformations, is a hallmark of biodiversity hotspots. Fossil evidence offers unique insights into the historical biogeography and evolutionary trajectories of endemic taxa, particularly in biodiversity-rich regions like northeast India and the Western Ghats. This study reports the discovery of two <em>Nothopegia</em> species (Anacardiaceae) from late Oligocene sediments in the Makum Coalfield, Assam, northeast India. These fossils represent the earliest global record of the genus and display striking morphological similarities to the extant <em>Nothopegia travancorica</em> and <em>N. castaneifolia</em>, currently restricted to the Western Ghats, indicating a significant biogeographic shift over millions of years. Paleoclimatic and paleolatitudinal reconstructions suggest that the late Oligocene climate of northeast India mirrored the present-day equable climate of the Western Ghats, enabling the survival of <em>Nothopegia</em> in the region. However, the uplift of the Himalayan-Tibetan Plateau and a pronounced decline in the cold month mean temperature (CMMT) across northern and northeastern India likely drove the extinction of <em>Nothopegia</em> from these areas, confining it to the warmer environments of the Western Ghats. Present fossil evidence, along with previous fossil records of other plant taxa, underscores deep-time floristic connectivity between northeast India and the Western Ghats, likely facilitated by evergreen Paleogene forest corridors. These findings illuminate the biogeographic history of megadiverse ecosystems of South Asia and highlight the interplay between climatic shifts and geological events in shaping endemic biodiversity. Furthermore, the study demonstrates the critical role of paleobotanical data in guiding modern conservation strategies, particularly for relict taxa confined to isolated biodiversity hotspots.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105348"},"PeriodicalIF":1.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785918","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
Earliest thorny bamboo from Pleistocene of Asia characterizing spinescence and paleoclimatic adaptations in bamboos
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-28 DOI: 10.1016/j.revpalbo.2025.105347
Harshita Bhatia , Pushpa Kumari , N.H. Singh , Gaurav Srivastava
{"title":"Earliest thorny bamboo from Pleistocene of Asia characterizing spinescence and paleoclimatic adaptations in bamboos","authors":"Harshita Bhatia ,&nbsp;Pushpa Kumari ,&nbsp;N.H. Singh ,&nbsp;Gaurav Srivastava","doi":"10.1016/j.revpalbo.2025.105347","DOIUrl":"10.1016/j.revpalbo.2025.105347","url":null,"abstract":"<div><div>Spinescence—characterized by spines, prickles, and thorns—is a key defensive trait in plants, but is rare among bamboo genera. Its evolutionary history in bamboos remains poorly understood due to limited fossil evidence, with only a single previously documented specimen of a preserved node. Furthermore, the evolutionary ecology and paleoclimatic adaptations of bamboos during the Quaternary in Asia remain unclear due to a lack of fossil records. This study introduces <em>Chimonobambusa manipurensis</em> sp. nov., a well-preserved thorny bamboo fossil from the late Pleistocene of eastern India, marking the first Asian fossil record of thorny bamboo and the first Quaternary record from Asia. The fossil features nodes, internodes, nodal buds, and thorn scars, offering novel insights into bamboo spinescence and nodal morphology. <em>C. manipurensis</em> displays three well-preserved nodes, two complete internodes, prominently conserved nodal buds, and 3–4 thorn base scars along each nodal rim. Morphologically, it shares traits seen in modern <em>Chimonobambusa</em> Makino and is placed within the same genus. Together with a Pliocene–Pleistocene thorny bamboo record from Peru, this discovery suggests spinescence in bamboos likely emerged during the Neogene, with evolutionary adaptations continuing into the Pleistocene potentially as an adaptation to changing climatic conditions and increased herbivory pressures. Furthermore, it suggests that bamboos during Quaternary time in Asia were growing under warm and humid climatic conditions. This finding enhances our understanding of bamboo morphological evolution and paleoclimatic adaptations, filling a critical gap in the global fossil record.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105347"},"PeriodicalIF":1.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747375","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
Palynology from the Foura Sandstone type section, Timor-Leste, and late Ladinian–Carnian (Middle–Upper Triassic) vegetation reconstruction from NW Australia
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-27 DOI: 10.1016/j.revpalbo.2025.105346
Daniel Peyrot , David W. Haig , Daniel Mantle , Peter Baillie , Arthur Mory , Myra Keep , Jacinto Soares , Joe Scibiorski , John Backhouse
{"title":"Palynology from the Foura Sandstone type section, Timor-Leste, and late Ladinian–Carnian (Middle–Upper Triassic) vegetation reconstruction from NW Australia","authors":"Daniel Peyrot ,&nbsp;David W. Haig ,&nbsp;Daniel Mantle ,&nbsp;Peter Baillie ,&nbsp;Arthur Mory ,&nbsp;Myra Keep ,&nbsp;Jacinto Soares ,&nbsp;Joe Scibiorski ,&nbsp;John Backhouse","doi":"10.1016/j.revpalbo.2025.105346","DOIUrl":"10.1016/j.revpalbo.2025.105346","url":null,"abstract":"<div><div>A palynological analysis of the basinal volcaniclastic turbiditic Foura Sandstone Member within the Babulu Formation in Timor-Leste reveals rich assemblages including well-preserved material that correlates with the upper Ladinian–Carnian upper <em>Staurosaccites quadrifidus</em>–?lower <em>Samaropollenites speciosus</em> spore-pollen zones of Australia. The high diversity of conifer pollen in these assemblages indicates an association with microfloras from comparable latitudinal zones within Gondwana and an affiliation with the Onslow paleobiogeographic floral belt. The relationship between pollen and megafloral associations highlights the ecological flexibility of conifers, and their preeminent role in Triassic Gondwanan vegetation. The assemblages from the Foura Sandstone, including the new species <em>Cadargasporites helbyi</em>, <em>Cadargasporites timorensis</em> and <em>Planctonites</em>? <em>comasii</em>, point to the high diversity of vegetation in the area and the need for further studies.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105346"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776777","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
Adding ‘flavour’ to past cuisines: First steps towards a phytolith reference collection of modern Mediterranean herbs
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-26 DOI: 10.1016/j.revpalbo.2025.105345
Carlos G. Santiago-Marrero , Cristina N. Patús , Costanza Dal Cin d'Agata , Teresa Garnatje , Juan José García-Granero
{"title":"Adding ‘flavour’ to past cuisines: First steps towards a phytolith reference collection of modern Mediterranean herbs","authors":"Carlos G. Santiago-Marrero ,&nbsp;Cristina N. Patús ,&nbsp;Costanza Dal Cin d'Agata ,&nbsp;Teresa Garnatje ,&nbsp;Juan José García-Granero","doi":"10.1016/j.revpalbo.2025.105345","DOIUrl":"10.1016/j.revpalbo.2025.105345","url":null,"abstract":"<div><div>Most aromatic herbs belong to plants within the onion subfamily (A<span>llioideae</span> Herb.), the mint family (L<span>amiaceae</span> Martinov), the parsley family (A<span>piaceae</span> Lindl.) and the tarragon family (A<span>steraceae</span> Bercht. &amp; J.Presl), many of which are native to the Mediterranean. The culinary use of herbs has been textually documented in the eastern Mediterranean for over 3000 years. However, due to the nature of the archaeological record, where most macroscopic plant assemblages are preserved through charring, and the physiological characteristics of the plants themselves, herbs are largely underrepresented and have seldom been considered when assessing prehistoric culinary practices. Here, we present the results of a pilot modern phytolith reference collection of Mediterranean herbs to assess the potential of phytoliths in revealing ‘invisible’ plant ingredients in archaeological narratives. Phytoliths were observed in 48 of the 62 analysed reference samples. Although herbs are relatively poor phytolith producers, certain taxa produce distinctive morphotypes at different taxonomic levels that can potentially be used to identify the culinary uses of Mediterranean herbs in the archaeological record related to food preparation (e.g., residue analyses from food-processing artefacts, cooking vessels, charred food remains, etc.). In particular, anatomically connected silicified cells (silica skeletons) with potential taxonomic value were observed in species of the genus <em>Mentha</em> L. Moreover, species from the A<span>piaceae</span> family, such as <em>Daucus carota</em> subsp. <em>carota</em> L. and <em>Foeniculum vulgare</em> Mill., produced massive multiseriate and pin-cushion trichomes with large multicellular stalks that could potentially hold taxonomic value.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105345"},"PeriodicalIF":1.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739647","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 the fossil fern Millerocaulis (Osmundales: Osmundaceae) from the Snow Hill Island Formation (Upper Cretaceous) of James Ross Island, Antarctic Peninsula
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-21 DOI: 10.1016/j.revpalbo.2025.105337
Eva Koppelhus , Ezequiel I. Vera , Rodolfo A. Coria , Philip J. Currie , Marcelo A. Reguero
{"title":"A new species of the fossil fern Millerocaulis (Osmundales: Osmundaceae) from the Snow Hill Island Formation (Upper Cretaceous) of James Ross Island, Antarctic Peninsula","authors":"Eva Koppelhus ,&nbsp;Ezequiel I. Vera ,&nbsp;Rodolfo A. Coria ,&nbsp;Philip J. Currie ,&nbsp;Marcelo A. Reguero","doi":"10.1016/j.revpalbo.2025.105337","DOIUrl":"10.1016/j.revpalbo.2025.105337","url":null,"abstract":"<div><div>A small permineralized stem containing an ectophloic-dictyoxylic siphonostele and petiole bases with an homogeneous sclerotic ring, referable to the fossil genus <em>Millerocaulis</em> Erasmus ex Tidwell emend. Vera, was recovered from the siltstones of the Gamma Member of the Snow Hill Island Formation (Marambio Group, Upper Cretaceous) of Santa Marta Cove, James Ross Island. The presence of high numbers of xylem strands, leaf traces per cross section, wide cauline xylem strands and lack of sclerenchyma in the petiole bases (apart from the sclerotic ring) at least until the fourth petiolar cycle allow its separation from other known species of the genus <em>Millerocaulis,</em> defining a new taxon <em>Millerocaulis santamartaensis</em> sp. nov.. This new taxon represents the fourth species of the genus identified from Antarctica. The fossil bearing strata are interpreted as upper Campanian to lower Maastrichtian. As a result, <em>M. santamartaensis</em> sp. nov. represents the youngest evidence of the presence of this genus of stem-Osmundaceae almost until the end of the Cretaceous.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105337"},"PeriodicalIF":1.7,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697741","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
Early Cretaceous vegetation in a polar ecosystem—Palynology and zircon dating of the Koonwarra Fossil Bed, Victoria, Australia
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-19 DOI: 10.1016/j.revpalbo.2025.105336
Vivi Vajda , Olena A. Shevchuk , Stephen F. Poropat , Ashley Krüger , Patricia Vickers-Rich , Thomas H. Rich
{"title":"Early Cretaceous vegetation in a polar ecosystem—Palynology and zircon dating of the Koonwarra Fossil Bed, Victoria, Australia","authors":"Vivi Vajda ,&nbsp;Olena A. Shevchuk ,&nbsp;Stephen F. Poropat ,&nbsp;Ashley Krüger ,&nbsp;Patricia Vickers-Rich ,&nbsp;Thomas H. Rich","doi":"10.1016/j.revpalbo.2025.105336","DOIUrl":"10.1016/j.revpalbo.2025.105336","url":null,"abstract":"<div><div>The Early Cretaceous Koonwarra site, Victoria, Australia, comprises a fossil bed considered to be a Konservat <em>Lagerstätte</em> famous for its myriad of fossil fish, feathers, invertebrates, and plants. Here we provide a vegetation reconstruction based on detailed palynology from a 21 m long drill core of which the basal 10 m represents the Koonwarra Fossil Bed (KFB) proper. Palynological analysis of the KFB revealed well-preserved assemblages, and c. 30,000 palynomorphs were identified, representing 138 taxa. The palynoassemblages are dominated by gymnosperm pollen, especially <em>Alisporites</em> (‘seed-ferns’), <em>Araucariacites</em> (Araucariaceae), <em>Podocarpidites</em> (Podocarpaceae) and monosulcate grain producers (most possibly Ginkgoales and Pentoxylales). Minor constituents include <em>Eucommidiites</em> and various arborescent gymnosperm pollen, including those produced by Cheirolepidiaceae such as <em>Classopollis</em>. The next most abundant groups are the fern spores, followed by lycophyte spores, both of which constitute a substantial portion of the palynoflora. Angiosperm pollen represents a minor but important element of the flora throughout the succession (1–6%). The LAICP-MS U–Pb dating of detrital zircon grains bracketing the Koonwarra Fossil Bed reveal a maximum dominant age of ≤<!--> <!-->114.1 Ma (latest Aptian) but with a few younger grains dated at 110 Ma.</div><div>The palynological analysis tentatively ascribes a slightly younger age to the Unit, with assemblages referred to the very base of the <em>Coptospora paradoxa</em> Zone, signifying an early Albian age, based on the presence of the indices <em>Coptospora paradoxa</em> and <em>Stoverisporites lunaris</em>, combined with abundance data of various groups. Comparisons with coeval successions from other Southern Hemisphere localities, indicated that the Koonwarra assemblages derived from a cool temperate lake-margin vegetation.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105336"},"PeriodicalIF":1.7,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697742","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
Floral dynamics and ecological adaptations in the Lopingian gigantopterid rainforest of South China
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-16 DOI: 10.1016/j.revpalbo.2025.105335
Shu Wenchao , Yu Jianxin , Jason Hilton , Shi Xiao , Tian Li , José Bienvenido Diez , Tong Jinnan , Lu Yongchao
{"title":"Floral dynamics and ecological adaptations in the Lopingian gigantopterid rainforest of South China","authors":"Shu Wenchao ,&nbsp;Yu Jianxin ,&nbsp;Jason Hilton ,&nbsp;Shi Xiao ,&nbsp;Tian Li ,&nbsp;José Bienvenido Diez ,&nbsp;Tong Jinnan ,&nbsp;Lu Yongchao","doi":"10.1016/j.revpalbo.2025.105335","DOIUrl":"10.1016/j.revpalbo.2025.105335","url":null,"abstract":"<div><div>Gigantopterids represents an enigmatic plant plexus from the Permian period and are of utmost significance in South China during the Lopingian prior to the Permian–Triassic mass extinctions due to their high diversity and abundance. However, it remains uncertain whether Lopingian gigantopterid rainforests were compositionally stable or underwent conspicuous changes through the Lopingian. From Guizhou Province in South China, a profusion of Lopingian gigantopterid leaves have been unearthed in recent excavations from the Longtan Formation. These seemingly suggest floristic turnover within gigantopterid rainforests, shifting from an early stage dominated by <em>Gigantonoclea</em> to a later phase dominated by <em>Gigantopteris</em>, concurrent with a significant decline in the marattialean tree-fern <em>Pecopteris,</em> and a change from swamp dominated to tidal flats and channel dominated depositional facies. Certain gigantopterids in these new materials from South China possessed climbing structures. Notably, leaves of <em>Gigantonoclea</em> are found connected with adhesive roots, hooks, or grapnels. Additionally, some prehensile branches were preserved wound around <em>Pecopteris</em> stems and rachises. These phenomena indicate the existence of both active and passive climbing modalities for <em>Gigantonoclea</em>, possibly involving a sinistral twining mode, which enriches our understanding of the ecological adaptations and behaviors of these ancient plants during the Lopingian. <em>Pecopteris</em> is shown to have been a supporting plant on which gigantopterids climbed.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105335"},"PeriodicalIF":1.7,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704889","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
Intensified human activities-ecology interaction in the Chinese Loess Plateau at least two millennia: Evidence from palynological analysis
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-15 DOI: 10.1016/j.revpalbo.2025.105334
Zeyu Liu , Yajie Dong , Suping Peng , Anning Cui , Xian Li
{"title":"Intensified human activities-ecology interaction in the Chinese Loess Plateau at least two millennia: Evidence from palynological analysis","authors":"Zeyu Liu ,&nbsp;Yajie Dong ,&nbsp;Suping Peng ,&nbsp;Anning Cui ,&nbsp;Xian Li","doi":"10.1016/j.revpalbo.2025.105334","DOIUrl":"10.1016/j.revpalbo.2025.105334","url":null,"abstract":"<div><div>Palynological analysis on the Chinese Loess Plateau (CLP), the cradle of Chinese civilization, is essential for exploring the complex relationships between human activities and ecological change during the Holocene. However, high resolution palynological analysis of loess deposits in this region remains limited. This study analyzed 98 fossil pollen and charcoal assemblages from the Linxia section in the western part of the CLP. The results show that from the Middle Holocene onwards, an increase in charcoal concentration and the presence of <em>Hippophae</em> and Brassicaceae marks the initial appearance of human activities, suggesting early settlers' engagement in agriculture and fire use. During the late Holocene, particularly around 2000 years ago, the sequential peaks of charcoal, <em>Hippophae</em>, and Brassicaceae concentrations indicate a significant intensification of human activities. This intensification is further supported by other records, such as grain size and fungal spore data. By integrating palynological data with other environmental proxies, this study provides a new perspective on the long-term ecological history of the CLP, shaped by the ongoing interaction between natural environments and human activities during the Holocene. The consistent timing of human impacts on vegetation across the CLP, especially the significant enhancement at least two millennia, provide key evidence for understanding the patterns and extent of human activities' influence on ecosystems.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105334"},"PeriodicalIF":1.7,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654815","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 observations on extinct Malvaceae from the lower Miocene of Japan: Fruit morphology, taphonomy, biogeography and paleocology of Banisteriaecarpum and associated foliage, pollen and wood
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-13 DOI: 10.1016/j.revpalbo.2025.105331
Toshihiro Yamada , Megumi Nishino , Kazuhiko Uemura
{"title":"New observations on extinct Malvaceae from the lower Miocene of Japan: Fruit morphology, taphonomy, biogeography and paleocology of Banisteriaecarpum and associated foliage, pollen and wood","authors":"Toshihiro Yamada ,&nbsp;Megumi Nishino ,&nbsp;Kazuhiko Uemura","doi":"10.1016/j.revpalbo.2025.105331","DOIUrl":"10.1016/j.revpalbo.2025.105331","url":null,"abstract":"<div><div><em>Byttneriophyllum tiliifolium</em> is a Malvaceae leaf that occurs from the late Oligocene to early Pliocene in Eurasia. A potential biological connection between <em>By. tiliifolium</em> and “samaras” assigned to <em>Banisteriaecarpum giganteum</em> has also been proposed. In this study, we report <em>Ba. giganteum</em> attached to a peduncle from the lower Miocene Nakamura Formation, exposed in Gifu Prefecture, central Japan. Notably, four scars were observed on the peduncle alongside a single <em>Ba. giganteum</em>, indicating that the schizocarp likely consists of five samaroid mericarps (i.e., <em>Ba. giganteum</em>), similar to the extant genus <em>Triplochiton</em> (Helictereae, subfamily Helicterioideae). This finding provides additional evidence supporting the placement of <em>By. tiliifolium</em> in Helictereae. Furthermore, we conducted palynological analyses of beds containing monodominant <em>By. tiliifolium</em> in the Nakamura Formation. Malvaceous pollen <em>Intratriporopollenites instructus</em> was recovered from these beds, with no other malvaceous pollen detected. This result supports a biological connection between <em>By. tiliifolium</em> and <em>I. instructus</em>, as previously noted in European localities. Our study suggests that the distribution of Helictereae may have expanded into the mid-latitude regions during the early to middle Miocene, a period characterized by a global climate warmer than today.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"337 ","pages":"Article 105331"},"PeriodicalIF":1.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628513","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
Eocene liverwort and moss species preserved in Anglesea amber from Australia
IF 1.7 3区 地球科学
Review of Palaeobotany and Palynology Pub Date : 2025-03-13 DOI: 10.1016/j.revpalbo.2025.105330
Maria Paulsen , Daniel Ohlsen , David J. Cantrill , Jeffrey D. Stilwell
{"title":"Eocene liverwort and moss species preserved in Anglesea amber from Australia","authors":"Maria Paulsen ,&nbsp;Daniel Ohlsen ,&nbsp;David J. Cantrill ,&nbsp;Jeffrey D. Stilwell","doi":"10.1016/j.revpalbo.2025.105330","DOIUrl":"10.1016/j.revpalbo.2025.105330","url":null,"abstract":"<div><div>Five bryophyte fossils recovered in amber at Anglesea, Victoria (Australia) are presented, dating from the late middle Eocene (42Ma), reinforcing the significance of ancient tree resin deposits. Exceptional detail preserved in two of these specimens provide adequate basis for their description as new species, <em>Radula panduriformis</em> sp. nov., and the new genus <em>Hyponychium pentadactylum</em> gen. et sp. nov. The deeply dissected five-lobed underleaves of <em>Hyponychium</em> differ from extant and extinct taxa, and in the absence of sporophytic characters, the affinity of this fossil is uncertain. Other fossils described herein retain significant detail, but the absence of sporophytic characteristics limits their classification to the genus level or higher, highlighting the difficulty of precisely identifying fossil bryophyte relationships. All fossils presented are the earliest recorded examples of their families from the Southern Hemisphere and supports established knowledge of the presence of warm and humid forests in middle Eocene Victoria.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"338 ","pages":"Article 105330"},"PeriodicalIF":1.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679129","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
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