Review of Palaeobotany and Palynology最新文献_第10页

A new record of Lesbosoxylon (Pinaceae) wood with fungal remains from the Lower Miocene of Lesvos, Greece, and its palaeoecological implication 希腊莱斯沃斯下中新世松木真菌化石新记录及其古生态意义

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-06-18 DOI: 10.1016/j.revpalbo.2025.105395

Yanbin Zhu , Ning Tian , Jianping Zhang , Yongdong Wang , Nikolaos Zouros

Diverse plant fossils have been reported from the Miocene deposit in the Lesvos Petrified Forest, Greece. Increasing record of fossil wood taxa provide significant understanding for exploring the fossil diversity and palaeoecological implications of this fossil wood forest. However, structurally preserved fossil plants bearing fungal remains are exceptionally rare in this region. Here, we report a new fossil wood Lesbosoxylon zourosii sp. nov. Zhu et Wang based on anatomically well-preserved fossil specimens from the Miocene Sigri Pyroclastic Formation in Lesvos, Greece. Anatomical analysis reveals key features, including axial and radial resin canals, abietinean radial pitting, pinoid cross-field pitting, and three distinct ray types. In addition, this investigation documents the presence of well-preserved fungal hyphae, and feeding traces within the wood host. This represents the first report of fungal remains associated with fossil wood in Greece. Paleoecologically, the fungal remains are tentatively interpreted as a kind of decay fungus, contributing to the decomposition of plant material. Lesbosoxylon zourosii sp. nov. not only further enriches the fossil diversity of the Lesvos Petrified Forest, but also provides new evidence for plant-fungal interaction in the Early Miocene terrestrial ecosystem of the East Mediterranean.

希腊莱斯沃斯石化森林中新世沉积物中发现了多种植物化石。越来越多的木化石分类记录为探索该木化石林的化石多样性和古生态意义提供了重要的认识。然而，在这个地区，结构上保存完好的带有真菌残留物的化石植物非常罕见。本文报道了一种新的化石木Lesbosoxylon zourosii sp. nov. Zhu et Wang基于希腊Lesvos中新世Sigri火山碎屑组解剖学上保存完好的化石标本。解剖分析揭示了主要特征，包括轴向和径向树脂管，abietiine和径向点蚀，pinoid交叉场点蚀和三种不同的射线类型。此外，这项调查还记录了保存完好的真菌菌丝的存在，以及木材宿主内的摄食痕迹。这是希腊首次报道与化石木材相关的真菌遗骸。在古生态学上，真菌遗骸被初步解释为一种腐烂真菌，有助于植物物质的分解。Lesbosoxylon zourosii sp. 11 .不仅进一步丰富了Lesvos石化林的化石多样性，而且为早中新世东地中海陆地生态系统植物-真菌相互作用提供了新的证据。

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引用次数: 0

The bees tell the story of disappeared landscapes: The case of the apiaries of Ürünlü/Kite (Bursa, Turkey) 蜜蜂讲述了消失的景观的故事：Ürünlü/Kite （Bursa，土耳其）的养蜂场的案例

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-06-18 DOI: 10.1016/j.revpalbo.2025.105397

Güven Gümgüm , Aycan Tosunoglu

This study covers the ethnoarchaeological research on the hives abandoned 200 years ago, which evaluates the historical significance of studied apiaries and melissopalynological research, which addresses the change of floral diversity through palynological analysis in comparison with contemporary data. Conducted in the village of Ürünlü (Kite), Turkey, the study explores the effects of beekeeping, honey production, urbanization, and agricultural expansion on the flora of ancient Bithynia in recent centuries.

Extensive construction, new buildings, and landscape changes contributed to the obsolescence of these traditional apiaries. The abandonment of crude brick hive structures marked the shift to modern beekeeping. Melissopalynological analyses reveal that honey bees serve not only as honey producers but also as recorders of floristic change. Their foraging patterns reflect human-induced changes in floristic composition over time.

Traces of this unique apicultural practice persist in Turkey, particularly in a village near Bursa (ancient Prusa), south of the Sea of Marmara and were contributed to its strategic location along the Silk Road. Surrounding villages, including Ürünlü, still retain remnants of historical agricultural and pastoral activities. By examining these abandoned hives by a multidisciplinary approach, this study sheds light on the interplay between traditional beekeeping practices and environmental transformations. It underscores the importance of historical apiaries in understanding both past and present floristic diversity, offering valuable insights into the ecological and cultural history of the region.

本研究涵盖了对200年前遗弃的蜂箱的民族考古研究，评估了所研究的蜂房和孢粉学研究的历史意义，并通过孢粉学分析与当代数据进行了比较，解决了花卉多样性的变化。该研究在土耳其Ürünlü （Kite）村进行，探讨了近几个世纪以来养蜂、蜂蜜生产、城市化和农业扩张对古代比提尼亚植物群的影响。大规模的建设、新建筑和景观变化导致了这些传统养蜂场的过时。原始砖房结构的废弃标志着向现代养蜂的转变。蜂蜜学分析表明，蜜蜂不仅是蜂蜜的生产者，而且是植物区系变化的记录者。它们的觅食模式反映了人类引起的植物区系组成随时间的变化。这种独特的养蜂方式的痕迹在土耳其一直存在，特别是在马尔马拉海以南的布尔萨（古代普鲁萨）附近的一个村庄，并有助于其沿丝绸之路的战略位置。周围的村庄，包括Ürünlü，仍然保留着历史上农业和畜牧活动的遗迹。通过多学科方法检查这些废弃的蜂箱，本研究揭示了传统养蜂实践与环境转变之间的相互作用。它强调了历史上的养蜂场对了解过去和现在的植物多样性的重要性，为了解该地区的生态和文化历史提供了宝贵的见解。

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引用次数: 0

A new early Miocene fossil forest of the Galatian Volcanic Province (Turkey) and its evaluation in respect of palaeoclimatology 土耳其加拉太火山省早中新世新化石林及其古气候学评价

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-06-16 DOI: 10.1016/j.revpalbo.2025.105393

Ünal Akkemik

The Galatian Volcanic Province has a rich diversity of fossil wood, and identifying new fossil wood sites, species and forest compositions provides more information about the region's forests and climate in the Early Miocene. Against this backdrop, this study aims to enhance our understanding of the spatial distribution of forest structures, climates and tree compositions in the Early Miocene GVP by identifying fossil trees in the Kıbrıscık-Sarıkaya fossil area. A total of 20 fossil wood samples were collected from the site near the village of Bolu-Kıbrıscık-Sarıkaya. Microscopic analysis revealed the presence of Cedrus anatolica Akkemik, Pinuxylon diversiradiatum (Süss & Velitzelos) Mantzouka & Akkemik, Prunoidoxylon prunoides Akkemik, Salicoxylon galatianum Akkemik, Myricoxylon unalakkemikii H.Çelik, Ulmoxylon kasapligilii Akkemik and Liquidambaroxylon efeae Akkemik. The species composition indicates that the closest living relatives' climatic characteristics suggest an environment where the range of the lowest temperature in the coldest month and the highest temperature in the hottest month varies between − 0.3 and 29.3 °C. In terms of precipitation, the estimated range during the time in which the fossil trees lived was 578–1577 mm. The mean annual precipitation was 1077 mm, higher than the present-day figure of 619 mm (range 493.1–793.8 mm). Consequently, precipitation and temperature in the early Miocene were higher than they are today, and seasonality was more pronounced. The forest structure was characterized by extensive riparian areas and well-drained coniferous and mixed lowland and/or upland forests.

加拉太火山省拥有丰富多样的化石木材，确定新的化石木材地点、物种和森林组成为该地区中新世早期的森林和气候提供了更多信息。在此背景下，本研究旨在通过对Kıbrıscık-Sarıkaya化石区化石树的识别，加深对早中新世GVP森林结构、气候和树木组成的空间分布的认识。在Bolu-Kıbrıscık-Sarıkaya村附近的地点共收集了20个木材化石样本。显微分析显示存在雪松anatolica Akkemik， Pinuxylon diverradiatum (s ss &；Velitzelos Mantzouka &；Akkemik, prounoidoxylon prounoides Akkemik, Salicoxylon galatianum Akkemik, Myricoxylon unalakkemikii H.Çelik， Ulmoxylon kasapligilii Akkemik和Liquidambaroxylon efeae Akkemik。物种组成表明，最近亲缘的气候特征表明，最冷月份最低温度和最热月份最高温度的变化范围在- 0.3 ~ 29.3°C之间。在降水方面，化石树生活时间的估计范围为578-1577毫米。年平均降水量为1077 mm，高于现今619 mm （493.1 ~ 793.8 mm）。因此，中新世早期的降水和温度都比现在高，季节性也更明显。森林结构的特点是广泛的河岸区和排水良好的针叶林和混合低地和/或高地林。

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引用次数: 0

A sedimentary record of fire evolution history and its response to climate change and human activities during the last 7000 years from Lake Qionghai, southeastern Tibetan Plateau 青藏高原东南部琼海近7000年火的沉积记录及其对气候变化和人类活动的响应

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-06-13 DOI: 10.1016/j.revpalbo.2025.105394

Haozhen Yin , Xingqi Liu , Huanyu Sun , Xin Mao , Jun Yang , Guoxiang Li

The occurrence of fire is related to climate, vegetation, and human activity. The Qionghai Lake catchment, situated on the southeastern margin of the Tibetan Plateau, exhibits well-developed vegetation and a high fire frequency and is located in Xichang City—a settlement with a long-standing historical legacy. It is therefore one of the most suitable areas to study the fire-climate-vegetation-human connection. In this study, we reconstruct the fire evolution history of Lake Qionghai over the last 7000 years using AMS ¹⁴C dating, along with an analysis of charcoal accumulation rate (CHAR) and major pollen taxa. Our results reveal two distinct phases in Holocene fire dynamics: (1) During the period of 7000–620 cal yr BP, fire activity exhibited a sustained decrease, which may have been linked to the reduction in lightning due to the temperature drop during that period. (2) From 620 cal yr BP to the present‌, a marked increase in fire activity has been accompanied by a pronounced decline in woody plants, coinciding with the proliferation of anthropophilic plant—Poaceae. We propose that the increased fire activity in the catchment area has become increasingly influenced by human activities, particularly through population growth, settlement expansion, and the adoption of slash-and-burn agricultural practices that collectively intensified fire regime.

火灾的发生与气候、植被和人类活动有关。琼海流域位于青藏高原东南边缘，植被发达，火灾频发，地处历史悠久的西昌市。因此，这里是研究火-气候-植被-人类关系最适宜的地区之一。本研究利用AMS 14C测年技术重建了琼海湖区近7000年的火灾演化史，并对炭积累速率（CHAR）和主要花粉类群进行了分析。研究结果揭示了全新世火灾动态的两个不同阶段：(1)在7000-620 cal yr BP期间，火灾活动呈现持续减少的趋势，这可能与该时期气温下降导致闪电减少有关。(2)从620 cal yr BP至今，森林火灾活动的显著增加伴随着木本植物的显著减少，与亲人植物——禾科的大量繁殖相一致。我们认为，汇水区火灾活动的增加受到人类活动的影响越来越大，特别是人口增长、定居点扩张和采用刀耕火种的农业做法，这些都加剧了火灾的发生。

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引用次数: 0

Reconstructing acritarch size distributions in chert: A quantitative approach for using probability models 重建燧石中树冠大小分布：一种使用概率模型的定量方法

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-06-06 DOI: 10.1016/j.revpalbo.2025.105385

Zhiji Ou , Fanwei Meng , Jiqiang Liu

Accurately reconstructing microfossil size distributions from thin sections is crucial for understanding early life history. Thin section preparation of chert samples often results in partial slicing of microfossils, leading to the underestimation of the observed sizes of acritarchs. This study develops a probability-based algorithm to address this bias and reconstruct more accurate size distributions. A Python program is introduced, allowing rapid and user-friendly computation without the need for complex manual calculations. This approach provides a novel solution to improve the accuracy of microfossil size data, thereby enhancing our understanding of acritarchs preserved in chert and their implications for the evolution of early life.

从薄片中精确地重建微化石的大小分布对于理解早期生命史至关重要。燧石样品的薄片制备通常会导致微化石的部分切片，从而导致对所观察到的临界生物尺寸的低估。本研究开发了一种基于概率的算法来解决这种偏差并重建更准确的尺寸分布。介绍了一个Python程序，允许快速和用户友好的计算，而不需要复杂的人工计算。该方法为提高微化石尺寸数据的准确性提供了一种新的解决方案，从而增强了我们对燧石中保存的关键生物及其对早期生命进化的意义的理解。

引用次数: 0

Almost forgotten fossil wood points to the existence of an overlooked group of Mesozoic Gondwanan gymnosperms 几乎被遗忘的木材化石表明存在一个被忽视的中生代冈瓦纳裸子植物群

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-05-22 DOI: 10.1016/j.revpalbo.2025.105383

Marc Philippe , Mike Pole , Pierre Maurizot , Lilian Alizert , Gendry Damien

The wood Araucarioxylon australe Crié was published in 1889. Despite the many nomenclatural and taxonomic issues involved, it has never been revised. We found type material in Rennes University (France) palaeontological collection. Syntypes are described and illustrated, and a lectotype is designated. A new species of Planoxylon Stopes, P. toitoii n.sp. is recognised. A similar wood, Planoxylon hectorii Stopes is also revised. Taxonomical relationship between Mixoxylon Chernomorets et Sakala and Planoxylon Stopes are discussed and a key to Planoxylon species proposed. This renewed taxonomical framework allows a clearer palaeobiogeographical image to emerge from Gondwana high-palaeolatitude Mesozoic fossil wood-record.

木材Araucarioxylon australe cri出版于1889年。尽管涉及许多命名和分类学问题，但它从未被修订。我们在法国雷恩大学的古生物收藏中发现了模式材料。对模式进行了描述和说明，并指定了一个选型。标题平梭梭（Planoxylon Stopes）一新种，P. toitoii n.sp。是认可的。一种类似的木材，Planoxylon hectorii Stopes也经过修订。讨论了扶桑（Mixoxylon Chernomorets et Sakala）与扶桑（Planoxylon Stopes）的分类学关系，并提出了扶桑的种键。这种新的分类框架使得冈瓦纳高古纬度中生代木材化石记录的古生物地理图像更加清晰。

引用次数: 0

Tenellisporites capillaris sp. nov., a new dispersed lycopsid megaspore from the Middle–Upper Triassic Badong Formation, Hunan Province, China 湖南中上三叠统巴东组新分散石松类大孢子Tenellisporites capillaris sp. nov.

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-05-21 DOI: 10.1016/j.revpalbo.2025.105384

Hong-Xiao Zhan , Qun Sui , Han Wu , Weiyu Lu , Jianbo Chen , Stephen McLoughlin , Zhuo Feng

Dispersed megaspore fossils provide crucial insights into the diversity of heterosporous lycopsids through geological time. However, detailed systematic studies on Middle–Late Triassic dispersed lycopsid megaspores of the South China Block are lacking. Here, we report a unique dispersed lycopsid megaspore species, Tenellisporites capillaris sp. nov., from the Middle–Upper Triassic Badong Formation in Hunan Province, China. This trilete megaspore species is characterised by narrow, elevated, membraneous laesurae with ragged finger-like projections; a flattened equatorial zona; and single or rarely bifurcate spines with sharp tips on both the proximal and distal surfaces. These spines are connected basally to form a fine reticulum and gradually increase in thickness and length towards the equator. Ultrastructural analysis reveals that the megaspore wall consists of two layers: 1) a very thin and dense foot layer, 2) a thick, dense outer layer with parallel sporopollenin units. The outermost sporopollenin units transition to vertically arranged units where forming the spinous ornamentation. The morphological and ultrastructural characteristics indicate that the new megaspore species belongs to Isoetales. Our finding represents the first fossil record of Tenellisporites in Asia, enhancing our understanding of the palaeogeographic distribution and diversity of isoetalean lycopsids during the Middle–Late Triassic.

分散的大孢子化石为了解不同地质时期异孢子石松类的多样性提供了重要的见解。然而，对华南地块中晚三叠世分散石松大孢子的详细系统研究尚缺乏。本文报道了湖南中上三叠统巴东组的一种独特的分散石松类大孢子——Tenellisporites capillaris sp. nov.。这三节大孢子种的特征是狭窄，升高，膜质laesurae具粗糙的指状突起；平坦的赤道带；单根或很少分叉的刺在近端和远端表面都有锋利的尖端。这些刺基部相连，形成一个细小的网状结构，并逐渐向赤道方向增加厚度和长度。超微结构分析表明，大孢子壁由两层组成：1)薄而致密的足部层，2)厚而致密的外层，平行的孢子粉粒单元。最外层的孢子孢粉单元过渡到垂直排列的单元，在那里形成刺状纹饰。形态和超微结构特征表明该大孢子新种属于等生门。该发现是亚洲第一个Tenellisporites化石记录，增强了我们对中晚三叠世等纯石松类古地理分布和多样性的认识。

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引用次数: 0

An illustrated protocol for extracting palynomorphs from Early Pleistocene pollen-poor sediments using LST Fastfloat 利用LST Fastfloat从早更新世花粉含量较低的沉积物中提取孢异形的说明方案

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-05-15 DOI: 10.1016/j.revpalbo.2025.105372

Valérie Andrieu , Belinda Gambin

This method for extracting palynomorphs is specifically dedicated for Early Pleistocene pollen-poor carbonate or siliceous sediments in the Mediterranean, which are characterised by prolonged summer droughts. It utilises LST Fastfloat, a non-toxic, low viscosity sodium polytungstate heavy liquid. Due to its physical qualities, particularly its low viscosity, LST Fastfloat enables more efficient pollen concentration compared to other methods, including those that rely on alternative dense liquids.

This approach was applied to fluviatile and lacustrine deposits in both the western (Marseille) and eastern (Acıgöl, Kocabaş) Mediterranean. Unlike standard method, LST Fastfloat produced highly concentrated pollen residues and clear pollen slides, reducing analysis time, which is an important advantage in a labour-intensive discipline such as palynology. The primary drawback of this method is its high cost, although it is partially recyclable.

Our article is designed to be didactic and richly illustrated, featuring figures and photographs to facilitate its application, particularly for beginners. The positive results presented here may encourage researchers to sample sediments previously considered pollen-poor or devoid of palynomorphs, especially from understudied regions of major biogeographical or archaeological interest, such as the arid regions of the tropics and the Mediterranean.

这种提取地貌的方法专门用于地中海早更新世缺乏花粉的碳酸盐或硅质沉积物，其特征是夏季长期干旱。它采用LST Fastfloat，一种无毒，低粘度的多钨酸钠重质液体。由于其物理特性，特别是其低粘度，与其他方法（包括那些依赖于替代致密液体的方法）相比，LST Fastfloat可以更有效地浓缩花粉。这种方法应用于地中海西部（马赛）和东部（Acıgöl，科卡巴伊）的流质和湖泊沉积物。与标准方法不同，LST Fastfloat产生高度浓缩的花粉残留物和清晰的花粉载玻片，减少了分析时间，这在孢粉学等劳动密集型学科中是一个重要的优势。这种方法的主要缺点是成本高，尽管它是部分可回收的。我们的文章被设计成教学和丰富的插图，以数字和照片，以方便其应用，特别是对初学者。这里提出的积极结果可能会鼓励研究人员对以前被认为缺乏花粉或没有花粉形态的沉积物进行取样，特别是来自主要生物地理或考古兴趣的研究不足的地区，如热带和地中海的干旱地区。

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引用次数: 0

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 Q2 PALEONTOLOGY

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

Portalites 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: Portalites confertus (type species), P. gondwanensis, P. baculus, P. niger, and P. rigidus. 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 Portalites 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 Portalites 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.

门孢属是一个以圆形孢子为特征的属，具有功能性孔和光滑或装饰的表面，可归因于真菌界。所涉及的物种在冈瓦纳石炭纪和二叠纪的间冰期和冰期后沉积物的孢粉学准备中大量发现，但在当地直到三叠纪也有发现。该属包括5种：Portalites confertus（模式种）、P. gondwanensis、P. baculus、P. niger和P. rigidus。直接分析了巴西亚马amazonas （Monte Alegre组）和paranar盆地（itarar组和里约热内卢Bonito组）的材料，以了解Portalites与当地植物群的关系，范围从宾夕法尼亚到cisurian。我们观察到，所研究的物种主要与石松科和菲利科有关。通过整合岩性数据，我们发现门状岩主要出现在细粒沉积物中，表明低能、潮湿的环境，接近淡水或微咸环境。在古地理上，本种分布最广泛的是宾夕法尼亚期和西苏拉期的冈瓦纳盆地。

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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 Q2 PALEONTOLOGY

Review of Palaeobotany and Palynology

Pub Date : 2025-05-13 DOI: 10.1016/j.revpalbo.2025.105373

Elke Schneebeli-Hermann , Francesca Galasso

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.

二叠纪-三叠纪大灭绝对陆生植物多样性和生态系统的影响仍存在争议。虽然对于许多植物化石记录，特别是来自陆地遗址的植物化石记录，不可能进行适当的定年，但对于沉积在海洋环境中的植物微化石记录，通常可以进行独立的生物地层定年。自从眉山二叠纪-三叠纪界线的全球层型剖面和点（GSSP）被批准以来，不仅有大量的孢粉学数据，而且有精确的年代学年龄，高分辨率的地球化学和生物地层数据集。在此，我们拟对欧阳等人发表的孢粉学资料进行修订。在目前的地质年代学框架下是在1990年。他们最初描述的三个组合带提供了关于沉积环境和植被组成的丰富信息——从沿海的二叠纪环境到更近的三叠纪环境。迄今为止，将孢粉学资料与碳同位素记录、当前岩石地层和U/Pb年龄进行比较，表明梅山附近大陆地区在二叠纪-三叠纪灭绝事件期间和之后，裸子植物为主的植被繁盛。

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引用次数: 0