Review of Palaeobotany and Palynology最新文献

A critical evaluation of fossil pollen records from the mangrove tree Pelliciera beyond the Neotropics: Biogeographical and evolutionary implications

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-02-06 DOI: 10.1016/j.revpalbo.2025.105299

Valentí Rull

Pelliciera is a Neotropical mangrove tree restricted to a small region around the Panama Isthmus. In the past, this taxon was distributed across much of the Neotropics, reaching its maximum extent during the Oligo-Miocene. The occurrence of Pelliciera outside the Neotropics had been debated based on a few fossil pollen records from Africa and Europe, though many of these records have been questioned. However, the recent proliferation of fossil pollen records identified as the fossil representatives of Pelliciera pollen warrants reconsideration. This paper provides a detailed review of the morphological features of extra-Neotropical records published to date, comparing them with extant Pelliciera pollen. Over 80 records from Africa, Europe, the Middle East, and North America were retrieved for this review. Only those published in Scopus-indexed journals are considered to avoid issues related to gray literature and predatory journals. Records mentioning purported Pelliciera fossils without providing material suitable for morphological comparison were also excluded, as were those featuring poor-quality images impossible to resolve. Among the records that met these criteria, only a subset of African fossil pollen types are compatible with Pelliciera: three with high reliability and another three with medium-high reliability, ranging from the Eocene to the Plio-Pleistocene. With these data, the occurrence of Pelliciera fossil pollen outside the Neotropics cannot be dismissed. However, the evidence remains insufficient to construct a transcontinental biogeographical and evolutionary framework for Pelliciera over time. Continued research in this direction is recommended, and suggestions for advancing this task are provided.

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引用次数: 0

Paleoenvironmental and paleoclimatic trends during the early-middle Cenomanian in northeastern Africa (Egypt): Insights from palynomorph and palynofacies analyses

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-02-04 DOI: 10.1016/j.revpalbo.2025.105297

Lamia A. Abdelhalim , Ahmed Mansour , Sameh S. Tahoun , Kamal Abdelrahman , Michael Wagreich

The early to middle Cenomanian was marked by a predominant greenhouse world, with diminished ice sheets, disruptions in the global carbon cycle, and long-term eustatic sea-level rise, which led to the development of vast epicontinental and shallow shelf seas. These oceanographic and environmental instabilities influenced climate evolution and the associated vegetation communities in adjacent continental regions. During this period, the Tethys Ocean flooded much of North Africa, resulting in the deposition of thick carbonate and siliciclastic sequences. In this study, a detailed palynomorph and palynofacies investigation of twenty-eight cuttings and core samples from the Bahariya Formation in well Salam-17 of the Shushan Basin, north Western Desert (Egypt) was conducted to reconstruct the vegetation ecosystem and its response to climatic and depositional environmental changes during the early-middle Cenomanian. Statistical analysis revealed two distinct clusters of particulate organic matter (POM) components, corresponding to two palynofacies assemblages (PFA-1 and PFA-2). PFA-1, which occurred in most of the samples, is characterized by high proportions of phytoclasts, suggesting deposition in fluvio-deltaic to marginal marine environments. PFA-2 is dominated by high abundances of AOM, revealing a shallow inner shelf environment with limited terrestrial input. A rich assemblage of humidity palynomorph indicators, including fern spores, conifer pollen from Taxodiaceae and Araucariaceae, points to predominantly warm and humid climates during the early-middle Cenomanian. However, the abundant presence of aridity palynomorph indicators, such as gnetalean Elaterates and Ephedroids, along with coniferous Cheirolepidiaceae, in the upper part of the Bahariya Formation indicates a short-lived phase of semi-arid to arid conditions during the late early Cenomanian. The high abundances of megathermic plant communities suggest that a warm climate prevailed throughout the succession. Regional correlations indicate that the warm arid to semi-arid phase is coeval throughout the north Western Desert, corresponding to the early Cenomanian Elaterosporites klaszii Interval Zone.

{"title":"Paleoenvironmental and paleoclimatic trends during the early-middle Cenomanian in northeastern Africa (Egypt): Insights from palynomorph and palynofacies analyses","authors":"Lamia A. Abdelhalim , Ahmed Mansour , Sameh S. Tahoun , Kamal Abdelrahman , Michael Wagreich","doi":"10.1016/j.revpalbo.2025.105297","DOIUrl":"10.1016/j.revpalbo.2025.105297","url":null,"abstract":"<div><div>The early to middle Cenomanian was marked by a predominant greenhouse world, with diminished ice sheets, disruptions in the global carbon cycle, and long-term eustatic sea-level rise, which led to the development of vast epicontinental and shallow shelf seas. These oceanographic and environmental instabilities influenced climate evolution and the associated vegetation communities in adjacent continental regions. During this period, the Tethys Ocean flooded much of North Africa, resulting in the deposition of thick carbonate and siliciclastic sequences. In this study, a detailed palynomorph and palynofacies investigation of twenty-eight cuttings and core samples from the Bahariya Formation in well Salam-17 of the Shushan Basin, north Western Desert (Egypt) was conducted to reconstruct the vegetation ecosystem and its response to climatic and depositional environmental changes during the early-middle Cenomanian. Statistical analysis revealed two distinct clusters of particulate organic matter (POM) components, corresponding to two palynofacies assemblages (PFA-1 and PFA-2). PFA-1, which occurred in most of the samples, is characterized by high proportions of phytoclasts, suggesting deposition in fluvio-deltaic to marginal marine environments. PFA-2 is dominated by high abundances of AOM, revealing a shallow inner shelf environment with limited terrestrial input. A rich assemblage of humidity palynomorph indicators, including fern spores, conifer pollen from Taxodiaceae and Araucariaceae, points to predominantly warm and humid climates during the early-middle Cenomanian. However, the abundant presence of aridity palynomorph indicators, such as gnetalean Elaterates and Ephedroids, along with coniferous Cheirolepidiaceae, in the upper part of the Bahariya Formation indicates a short-lived phase of semi-arid to arid conditions during the late early Cenomanian. The high abundances of megathermic plant communities suggest that a warm climate prevailed throughout the succession. Regional correlations indicate that the warm arid to semi-arid phase is coeval throughout the north Western Desert, corresponding to the early Cenomanian <em>Elaterosporites klaszii</em> Interval Zone.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"335 ","pages":"Article 105297"},"PeriodicalIF":1.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143238735","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

Shanxioxylon yangquanense sp. nov., a new Kasimovian cordaitalean axis from the Benxi Formation (Pennsylvanian, Carboniferous) of Yangquan City, Shanxi Province, North China

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-26 DOI: 10.1016/j.revpalbo.2025.105287

Keyu Wang , Gaowen Jia , Liyang Dong , Jin Wang , Shijun Wang , Jun Wang , Mingli Wan

A new Kasimovian cordaitalean fossil axis, Shanxioxylon yangquanense sp. nov., is described from the Pennsylvanian Benxi Formation of Yangquan City, Shanxi Province, North China. The axis is composed of the pith, primary xylem, secondary xylem, phloem and cortex. The pith is septate or hollow, heterogeneous, with parenchyma cells and spherical secretory cavities distributed at the periphery. Cauline bundles are endarch. Leaf traces are mesarch, mostly diverging from pith margin as single bundle. Double leaf traces are present occasionally. The secondary xylem is pycnoxylic, featured by dominantly araucarian uniseriate radial tracheid pits and cupressoid cross-field pitting. The fossil axis represents the third and oldest species of Shanxioxylon (Tian et Wang) Wang et al. from the upper Paleozoic of Cathaysia, indicating that this endemic cordaitalean genus had evolved by at least the Kasimovian in North China. Shanxioxylon yangquanense sp. nov. is proposed to have lived as an arborescent form in the clastic wetland of stream riparian zones under a perhumid climate based on its great morphological and anatomical similarities to Agathoxylon leei (Sze) Wang et Wan from the same fossil interval.

{"title":"Shanxioxylon yangquanense sp. nov., a new Kasimovian cordaitalean axis from the Benxi Formation (Pennsylvanian, Carboniferous) of Yangquan City, Shanxi Province, North China","authors":"Keyu Wang , Gaowen Jia , Liyang Dong , Jin Wang , Shijun Wang , Jun Wang , Mingli Wan","doi":"10.1016/j.revpalbo.2025.105287","DOIUrl":"10.1016/j.revpalbo.2025.105287","url":null,"abstract":"<div><div>A new Kasimovian cordaitalean fossil axis, <em>Shanxioxylon yangquanense</em> sp. nov., is described from the Pennsylvanian Benxi Formation of Yangquan City, Shanxi Province, North China. The axis is composed of the pith, primary xylem, secondary xylem, phloem and cortex. The pith is septate or hollow, heterogeneous, with parenchyma cells and spherical secretory cavities distributed at the periphery. Cauline bundles are endarch. Leaf traces are mesarch, mostly diverging from pith margin as single bundle. Double leaf traces are present occasionally. The secondary xylem is pycnoxylic, featured by dominantly araucarian uniseriate radial tracheid pits and cupressoid cross-field pitting. The fossil axis represents the third and oldest species of <em>Shanxioxylon</em> (Tian et Wang) Wang et al. from the upper Paleozoic of Cathaysia, indicating that this endemic cordaitalean genus had evolved by at least the Kasimovian in North China. <em>Shanxioxylon yangquanense</em> sp. nov. is proposed to have lived as an arborescent form in the clastic wetland of stream riparian zones under a perhumid climate based on its great morphological and anatomical similarities to <em>Agathoxylon leei</em> (Sze) Wang et Wan from the same fossil interval.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"335 ","pages":"Article 105287"},"PeriodicalIF":1.7,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143238914","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

Intensification of pastoralism ∼ 8 ka: Non-pollen palynomorphs analyses from the Rawatsera palaeolake sediments profile, Central Himalaya, India

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-26 DOI: 10.1016/j.revpalbo.2025.105288

Mohammad Firoze Quamar , Nagendra Prasad , Maneesha M. ET , Paulramasamy Morthekai , Anoop K. Singh , Lalit M. Joshi , Bahadur S. Kotlia , Dhruv Sen Singh , Mohammad Javed

The utility of non-pollen palynomorphs (NPP) as palaeoecological indicators and indicators of anthropogenic disturbances is rapidly growing because of their potential to comprehend palynological reconstructions of past communities and environments. Moreover, the initiation and development of pastoralism in India is poorly understood. We, in the present study, analyzed the NPP, especially the fungal NPP and the spores of coprophilous fungi (SCF), to understand the ecology, herbivore grazing (pastoralism) and human pressure during the Middle Holocene from a 2.75-m-long sediment profile from the Rawatsera palaeolake, Kumaun (Lesser Himalaya), India. The study demonstrated that between ∼ 8327 and 8041 cal yr BP (Zone I), herbivore grazing and human pressure was noticed, based on the recovered SCF. Subsequently between ∼ 8041 and 7406 cal yr BP (Zone II), the grazing activity (human pressure) intensified. Between ∼ 7406 and 6999 cal yr BP (Zone III), compared to Zone I, pastoralism and local herbivore grazing increased. The detrended correspondence analysis also supports the findings of intensified herbivore grazing (pastoralism), based on the SCF. Moreover, soil erosion, compared to Zone II (∼ 8041–7406 cal yr BP), was more during ∼ 8327–8041 cal yr BP (Zone I), but comparatively increased during ∼ 7406–6999 cal yr BP (Zone III) around the study area. Anthropogenic disturbance of varying degrees in the form of soil erosion (and grazing too) was, therefore, suggested, based on the recovery of fungal spores, especially Glomus sp., as well as the SCF during the Middle Holocene (∼ 8327–6999 cal yr BP) from Kumaun, Central Himalaya, India.

{"title":"Intensification of pastoralism ∼ 8 ka: Non-pollen palynomorphs analyses from the Rawatsera palaeolake sediments profile, Central Himalaya, India","authors":"Mohammad Firoze Quamar , Nagendra Prasad , Maneesha M. ET , Paulramasamy Morthekai , Anoop K. Singh , Lalit M. Joshi , Bahadur S. Kotlia , Dhruv Sen Singh , Mohammad Javed","doi":"10.1016/j.revpalbo.2025.105288","DOIUrl":"10.1016/j.revpalbo.2025.105288","url":null,"abstract":"<div><div>The utility of non-pollen palynomorphs (NPP) as palaeoecological indicators and indicators of anthropogenic disturbances is rapidly growing because of their potential to comprehend palynological reconstructions of past communities and environments. Moreover, the initiation and development of pastoralism in India is poorly understood. We, in the present study, analyzed the NPP, especially the fungal NPP and the spores of coprophilous fungi (SCF), to understand the ecology, herbivore grazing (pastoralism) and human pressure during the Middle Holocene from a 2.75-m-long sediment profile from the Rawatsera palaeolake, Kumaun (Lesser Himalaya), India. The study demonstrated that between ∼8327 and 8041 cal yr BP (Zone I), herbivore grazing and human pressure was noticed, based on the recovered SCF. Subsequently between ∼8041 and 7406 cal yr BP (Zone II), the grazing activity (human pressure) intensified. Between ∼7406 and 6999 cal yr BP (Zone III), compared to Zone I, pastoralism and local herbivore grazing increased. The detrended correspondence analysis also supports the findings of intensified herbivore grazing (pastoralism), based on the SCF. Moreover, soil erosion, compared to Zone II (∼8041–7406 cal yr BP), was more during ∼8327–8041 cal yr BP (Zone I), but comparatively increased during ∼7406–6999 cal yr BP (Zone III) around the study area. Anthropogenic disturbance of varying degrees in the form of soil erosion (and grazing too) was, therefore, suggested, based on the recovery of fungal spores, especially <em>Glomus</em> sp., as well as the SCF during the Middle Holocene (∼8327–6999 cal yr BP) from Kumaun, Central Himalaya, India.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"335 ","pages":"Article 105288"},"PeriodicalIF":1.7,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136311","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

Did ash (Fraxinus) become extinct on Cyprus?

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-25 DOI: 10.1016/j.revpalbo.2025.105286

Maria Rousou , Stéphanie Thiébault

Fraxinus L., ash, is a genus of plants in the olive family (OLEACEAE) with a large distribution in Europe, Asia, and North America. The three ash species attested today in Cyprus (F. angustifolia Vahl, F. excelsior L., F. ornus L.) are modern introductions dated to the 19th and 20th centuries CE. However, remains of wood charcoal (anthracological) fragments recovered from archaeological sites in Cyprus suggest the presence of Fraxinus in the local flora during the Early Holocene. This article reviews the available data on the presence of ash (Fraxinus spp.) in Cyprus and shows evidence for its exploitation at the Early Aceramic Neolithic site of Parekklishia-Shillourokambos (8600–6900 cal BCE) and the Late Aceramic Neolithic site of Khirokitia (Choirokoitia)-Vounoi (6800–5500 cal BCE). This data demonstrates that Fraxinus was present in Cyprus during the Early Holocene and therefore contributes to our understanding of its past biogeography as well as to the vegetation history and palaeoecology of Cyprus, and the environment around the sites.

引用次数: 0

Potential and limitations of New Zealand's pre-deforestation fossil pollen records as recent analogues in palaeoecological research

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-24 DOI: 10.1016/j.revpalbo.2025.105284

Jacqui M.M. Vanderhoorn , George L.W. Perry , Janet M. Wilmshurst

Modern pollen analogues act as reference samples (calibration datasets), representing the observable range of vegetation types and their climatic drivers. However, in some areas, human activities have decoupled vegetation-climate relationships, resulting in modern pollen spectra that do not accurately represent those processes and are poor analogues to fossil pollen. Where these issues arise, recent fossil pollen may be an appropriate substitute. This approach is particularly relevant in New Zealand, where indigenous forest cover has been radically reduced from 85 – 90% to 25% over c. 750 years, leaving deforested areas where modern pollen samples are overwhelmed by anthropogenic signals. The point in time just prior to human arrival in New Zealand (c. CE 1280), is therefore an essential reference point for building representative calibration datasets and accurate palaeoecological reconstructions. In this review, we took a systematic quantitative approach to (1) compile a site inventory of New Zealand's pre-deforestation fossil pollen datasets from published literature (including theses), (2) identify biases and gaps in their spatial distribution (geography, climate, remaining vegetation, and potential vegetation) and describe their influence on the accuracy of future analogue-based research, and (3) comment on the availability of datasets in existing palaeoecological archives. We identified 275 datasets across New Zealand and – while they had an impressive geospatial and climatic range – uncommon vegetation types, cold and dry eastern areas, and forested reference sites were under-represented. Few raw datasets (n = 10) were readily accessible through public data repositories, and we believe New Zealand would benefit from a national palaeoecological database.

{"title":"Potential and limitations of New Zealand's pre-deforestation fossil pollen records as recent analogues in palaeoecological research","authors":"Jacqui M.M. Vanderhoorn , George L.W. Perry , Janet M. Wilmshurst","doi":"10.1016/j.revpalbo.2025.105284","DOIUrl":"10.1016/j.revpalbo.2025.105284","url":null,"abstract":"<div><div>Modern pollen analogues act as reference samples (calibration datasets), representing the observable range of vegetation types and their climatic drivers. However, in some areas, human activities have decoupled vegetation-climate relationships, resulting in modern pollen spectra that do not accurately represent those processes and are poor analogues to fossil pollen. Where these issues arise, recent fossil pollen may be an appropriate substitute. This approach is particularly relevant in New Zealand, where indigenous forest cover has been radically reduced from 85 – 90% to 25% over c.750 years, leaving deforested areas where modern pollen samples are overwhelmed by anthropogenic signals. The point in time just prior to human arrival in New Zealand (c. CE 1280), is therefore an essential reference point for building representative calibration datasets and accurate palaeoecological reconstructions. In this review, we took a systematic quantitative approach to (1) compile a site inventory of New Zealand's pre-deforestation fossil pollen datasets from published literature (including theses), (2) identify biases and gaps in their spatial distribution (geography, climate, remaining vegetation, and potential vegetation) and describe their influence on the accuracy of future analogue-based research, and (3) comment on the availability of datasets in existing palaeoecological archives. We identified 275 datasets across New Zealand and – while they had an impressive geospatial and climatic range – uncommon vegetation types, cold and dry eastern areas, and forested reference sites were under-represented. Few raw datasets (n = 10) were readily accessible through public data repositories, and we believe New Zealand would benefit from a national palaeoecological database.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"335 ","pages":"Article 105284"},"PeriodicalIF":1.7,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136304","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

First endocarp record of Miquelia (Icacinaceae) from the late Miocene of northern Vietnam and its phytogeographical and paleoecological implications

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-22 DOI: 10.1016/j.revpalbo.2025.105285

Nguyen Ba Hung , Jian Huang , Cédric Del Rio , Nguyen Thi Mai Hoa , Do Van Truong , Phan Dong Pha , Tao Su , Shu-Feng Li

Abundant fossil records of Icacinaceae have been documented in the Northern Hemisphere; however, they are rare in the paleotropics where the family is most diverse today. As such, the evolutionary history of the family remains incomplete. In this study, we describe a newly discovered endocarp of Icacinaceae from the late Miocene of northern Vietnam, namely Miquelia yenbaiensis N.B. Hung, J. Huang & S.F. Li sp. nov. The identification is based on detailed morphological observations conducted using a reflected light microscope, together with extensive comparisons with both modern and fossil endocarps of the Phytocreneae. Miquelia yenbaiensis is characterized by sharp, thin, and reticulate ridges, with five main longitudinal ridges, and primarily circular pits arranged in longitudinal lines, with approximately 110–120 pits per face. The fossil examined in our study represents the first fossil record of Miquelia, indicating that this genus existed in northern Vietnam since at least the late Miocene. Additionally, our fossil finding provides the most recent fossil record of the Phytocreneae as well as the Icacinaceae, extending their historical range into tropical Asia during the late Miocene. Miquelia yenbaiensis likely inhabited a wet tropical ecosystem with a multi-stratified forest in the Yen Bai Basin during the late Miocene.

{"title":"First endocarp record of Miquelia (Icacinaceae) from the late Miocene of northern Vietnam and its phytogeographical and paleoecological implications","authors":"Nguyen Ba Hung , Jian Huang , Cédric Del Rio , Nguyen Thi Mai Hoa , Do Van Truong , Phan Dong Pha , Tao Su , Shu-Feng Li","doi":"10.1016/j.revpalbo.2025.105285","DOIUrl":"10.1016/j.revpalbo.2025.105285","url":null,"abstract":"<div><div>Abundant fossil records of Icacinaceae have been documented in the Northern Hemisphere; however, they are rare in the paleotropics where the family is most diverse today. As such, the evolutionary history of the family remains incomplete. In this study, we describe a newly discovered endocarp of Icacinaceae from the late Miocene of northern Vietnam, namely <em>Miquelia yenbaiensis</em> N.B. Hung, J. Huang & S.F. Li sp. nov. The identification is based on detailed morphological observations conducted using a reflected light microscope, together with extensive comparisons with both modern and fossil endocarps of the Phytocreneae. <em>Miquelia yenbaiensis</em> is characterized by sharp, thin, and reticulate ridges, with five main longitudinal ridges, and primarily circular pits arranged in longitudinal lines, with approximately 110–120 pits per face. The fossil examined in our study represents the first fossil record of <em>Miquelia</em>, indicating that this genus existed in northern Vietnam since at least the late Miocene. Additionally, our fossil finding provides the most recent fossil record of the Phytocreneae as well as the Icacinaceae, extending their historical range into tropical Asia during the late Miocene. <em>Miquelia yenbaiensis</em> likely inhabited a wet tropical ecosystem with a multi-stratified forest in the Yen Bai Basin during the late Miocene.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"335 ","pages":"Article 105285"},"PeriodicalIF":1.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136305","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 callistophytalean species from the Duckmantian of the Kladno-Rakovník Basin, Czech Republic

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-10 DOI: 10.1016/j.revpalbo.2025.105283

Zbyněk Šimůnek , Jan Haldovský

Small-pinnuled last order pinnae of a newly described taxon have previously been found relatively commonly at the Pchery locality, Theodor Coal Mine, in the Kladno-Rakovník Basin. Although foliar fragments of this plant have been known for over a century, the remains have yet to be formally identified because they share features characteristic of the neuropteroids (venation and cordate base of pinnules) and sphenopteroids (small pinnules). This taxon shows some resemblance to the species Pseudomariopteris cordato-ovata and Mariopteris occidentalis, both belonging to Order Callistophytales. However, the remains from the Theodor Mine do not have the lobed pinnules known for Mariopteris occidentalis, nor the prominent basal lobe typical of mature Pseudomariopteris cordato-ovata. Nonetheless, cuticles of all three of these species demonstrate some similarities, including adaxial cuticles showing elongated cells with very small trichome bases, and stomata with polar prolongation. However, differences also exist. The species from the Theodor Mine has small trichomes formed by barrel-shaped cells, whereas Mariopteris occidentalis has multicellular trichomes up to 0.5 mm long, and Pseudomariopteris cordato-ovata has resin bodies rather than trichomes. The overall similarity of cuticular structures and differences in pinnule morphology support erection of a new genus and species within Order Callistophytales. The name Neuromariopteris scandens gen. et sp. nov. alludes to the similarity to neuropteroids. The taxon probably was a creeping plant, as is known for all callistophytaleans. This species was probably an element of vegetation growing on the Proterozoic ridge slopes surrounding the coal basin. The exotic character of this flora is caused probably by edaphic factors.

{"title":"New callistophytalean species from the Duckmantian of the Kladno-Rakovník Basin, Czech Republic","authors":"Zbyněk Šimůnek , Jan Haldovský","doi":"10.1016/j.revpalbo.2025.105283","DOIUrl":"10.1016/j.revpalbo.2025.105283","url":null,"abstract":"<div><div>Small-pinnuled last order pinnae of a newly described taxon have previously been found relatively commonly at the Pchery locality, Theodor Coal Mine, in the Kladno-Rakovník Basin. Although foliar fragments of this plant have been known for over a century, the remains have yet to be formally identified because they share features characteristic of the neuropteroids (venation and cordate base of pinnules) and sphenopteroids (small pinnules). This taxon shows some resemblance to the species <em>Pseudomariopteris cordato-ovata</em> and <em>Mariopteris occidentalis</em>, both belonging to Order Callistophytales<em>.</em> However, the remains from the Theodor Mine do not have the lobed pinnules known for <em>Mariopteris occidentalis,</em> nor the prominent basal lobe typical of mature <em>Pseudomariopteris cordato-ovata.</em> Nonetheless, cuticles of all three of these species demonstrate some similarities, including adaxial cuticles showing elongated cells with very small trichome bases, and stomata with polar prolongation. However, differences also exist. The species from the Theodor Mine has small trichomes formed by barrel-shaped cells, whereas <em>Mariopteris occidentalis</em> has multicellular trichomes up to 0.5 mm long, and <em>Pseudomariopteris cordato-ovata</em> has resin bodies rather than trichomes. The overall similarity of cuticular structures and differences in pinnule morphology support erection of a new genus and species within Order Callistophytales. The name <em>Neuromariopteris scandens</em> gen. et sp. nov. alludes to the similarity to neuropteroids. The taxon probably was a creeping plant, as is known for all callistophytaleans. This species was probably an element of vegetation growing on the Proterozoic ridge slopes surrounding the coal basin. The exotic character of this flora is caused probably by edaphic factors.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"334 ","pages":"Article 105283"},"PeriodicalIF":1.7,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157915","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

Fossil pods of tropical tree Peltophorum (Caesalpinioideae, Fabaceae) from southwestern China

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-06 DOI: 10.1016/j.revpalbo.2025.105282

Yi-Shan Zhao (赵弈善) , Teng-Xiang Wang (王腾翔) , Shu-Mei Xiao (肖书妹) , Shu-Feng Li (李树峰) , Jian Huang (黄健)

Peltophorum (Fabaceae, Caesalpinioideae) is a pantropically distributed deciduous tree, whose biogeographic origin and development remain unclear due to limited fossil records. As the only genus with Asian distribution in its tribe, Peltophorum's fossil records from Asia are crucial for understanding its biogeographic history. In this study, a new species, Peltophorum xingjianii Y.S. Zhao, T.X. Wang et J. Huang sp. nov. is established based on well-preserved pods from the lower Miocene Sanhaogou Formation of Jinggu Basin, Yunnan, southwestern China. The fossil pods exhibit a unique morphological combination, including oblong shape, distinct and uniform V-shape valve venation, and rhombic seed chambers. The nearest living relative is P. pterocarpum, a species currently distributed from Southeast Asia to northern Oceania. This discovery represents the oldest known Peltophorum fossil record, indicating the genus's presence in low-latitude East Asia since at least the early Miocene. This finding, along with other fossil plants from the same basin, points to a tropical paleoenvironment in the early Miocene of Jinggu Basin.

{"title":"Fossil pods of tropical tree Peltophorum (Caesalpinioideae, Fabaceae) from southwestern China","authors":"Yi-Shan Zhao (赵弈善) , Teng-Xiang Wang (王腾翔) , Shu-Mei Xiao (肖书妹) , Shu-Feng Li (李树峰) , Jian Huang (黄健)","doi":"10.1016/j.revpalbo.2025.105282","DOIUrl":"10.1016/j.revpalbo.2025.105282","url":null,"abstract":"<div><div><em>Peltophorum</em> (Fabaceae, Caesalpinioideae) is a pantropically distributed deciduous tree, whose biogeographic origin and development remain unclear due to limited fossil records. As the only genus with Asian distribution in its tribe, <em>Peltophorum</em>'s fossil records from Asia are crucial for understanding its biogeographic history. In this study, a new species, <em>Peltophorum xingjianii</em> Y.S. Zhao, T.X. Wang et J. Huang sp. nov. is established based on well-preserved pods from the lower Miocene Sanhaogou Formation of Jinggu Basin, Yunnan, southwestern China. The fossil pods exhibit a unique morphological combination, including oblong shape, distinct and uniform V-shape valve venation, and rhombic seed chambers. The nearest living relative is <em>P. pterocarpum</em>, a species currently distributed from Southeast Asia to northern Oceania. This discovery represents the oldest known <em>Peltophorum</em> fossil record, indicating the genus's presence in low-latitude East Asia since at least the early Miocene. This finding, along with other fossil plants from the same basin, points to a tropical paleoenvironment in the early Miocene of Jinggu Basin.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"334 ","pages":"Article 105282"},"PeriodicalIF":1.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157916","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

Oligocene and early Miocene charophyte flora from the Sivas Basin (Central Anatolia, Türkiye). Biostratigraphy and palaeobiogeography

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-01-05 DOI: 10.1016/j.revpalbo.2025.105281

Josep Sanjuan , Elvan Demirci , Özgen Kangal , Nazire Özgen-Erdem

A rich charophyte assemblage is described and illustrated here from the Upper Paleogene-Lower Neogene lacustrine and palustrine rocks of the Sivas Basin (central Anatolia, Türkiye). The flora was extracted from 3 stratigraphic sections located in the eastern part of the Sivas Basin in the localities of Emirhan, Eğribucak, and Taşlıdere. Nine species belonging to two families (Characeae and Raskyllaceae) are identified here. The Characeae species from Emirhan and Taşlıdere (Emirhan and Karayün formations) are diverse and the assemblage is represented by Sphaerochara ulmensis, Sphaerochara sp., Chara molassica var. notata, Ch. cf. pappii, Chara sp., Hornichara sp., Lychnothamnus pinguis forma major and Nitellopsis (Tectochara) merianii. Several of these species display a wide biostratigraphic range in Europe spanning from the early Oligocene to middle Miocene. The co-occurrence of L. pinguis and Ch. molassica var. notata suggests that both the Emirhan and Karayün formations are upper Rupelian–lower Chattian (∼ 30–25 Ma). In terms of paleogeography, this flora displays a clear European affinity. The charophyte flora recovered from the Eğribucak locality (Unit 3 of the Eğribucak Formation) is composed of the single species Rantzieniella nitida which displays a limited biostratigraphic range within the Aquitanian (early Miocene). Accordingly, Unit 3 of the Eğribucak Formation can be correlated with the homonymous European charophyte biozone as well as with the Mammal Neogene Zones MN1–2 (∼ 24–21 Ma). Moreover, the occurrence of this index species in central Anatolia confirms its Eurasian distribution highlighting the usefulness of R. nitida in intercontinental basin correlation.

{"title":"Oligocene and early Miocene charophyte flora from the Sivas Basin (Central Anatolia, Türkiye). Biostratigraphy and palaeobiogeography","authors":"Josep Sanjuan , Elvan Demirci , Özgen Kangal , Nazire Özgen-Erdem","doi":"10.1016/j.revpalbo.2025.105281","DOIUrl":"10.1016/j.revpalbo.2025.105281","url":null,"abstract":"<div><div>A rich charophyte assemblage is described and illustrated here from the Upper Paleogene-Lower Neogene lacustrine and palustrine rocks of the Sivas Basin (central Anatolia, Türkiye). The flora was extracted from 3 stratigraphic sections located in the eastern part of the Sivas Basin in the localities of Emirhan, Eğribucak, and Taşlıdere. Nine species belonging to two families (Characeae and Raskyllaceae) are identified here. The Characeae species from Emirhan and Taşlıdere (Emirhan and Karayün formations) are diverse and the assemblage is represented by <em>Sphaerochara ulmensis</em>, <em>Sphaerochara</em> sp.<em>, Chara molassica</em> var. <em>notata</em>, <em>Ch.</em> cf. <em>pappii, Chara</em> sp., <em>Hornichara</em> sp., <em>Lychnothamnus pinguis</em> forma <em>major</em> and <em>Nitellopsis (Tectochara) merianii</em>. Several of these species display a wide biostratigraphic range in Europe spanning from the early Oligocene to middle Miocene. The co-occurrence of <em>L. pinguis</em> and <em>Ch. molassica</em> var. <em>notata</em> suggests that both the Emirhan and Karayün formations are upper Rupelian–lower Chattian (∼30–25 Ma). In terms of paleogeography, this flora displays a clear European affinity. The charophyte flora recovered from the Eğribucak locality (Unit 3 of the Eğribucak Formation) is composed of the single species <em>Rantzieniella nitida</em> which displays a limited biostratigraphic range within the Aquitanian (early Miocene). Accordingly, Unit 3 of the Eğribucak Formation can be correlated with the homonymous European charophyte biozone as well as with the Mammal Neogene Zones MN1–2 (∼24–21 Ma). Moreover, the occurrence of this index species in central Anatolia confirms its Eurasian distribution highlighting the usefulness of <em>R. nitida</em> in intercontinental basin correlation.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"334 ","pages":"Article 105281"},"PeriodicalIF":1.7,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157914","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