Palaeoworld最新文献_第8页

A new genus of aphids from the Bqaatouta outcrop of Lower Cretaceous Lebanese amber (Hemiptera: Tajmyraphidoidea) 下白垩世黎巴嫩琥珀Bqaatouta露头蚜虫一新属（半翅目：蚜总科）

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-09-04 DOI: 10.1016/j.palwor.2025.201010

Michael S. Engel , Mounir Maalouf , André Nel , Dany Azar

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Calophyllum (Calophyllaceae) with high leaf mass per area from the upper Miocene of Beihai, low-latitude China 低纬北海中新世上部叶重较高的Calophyllum （Calophyllaceae）

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-06-26 DOI: 10.1016/j.palwor.2025.200979

Shu-Ran Tang , Qi-Jia Li , Hui Jia , Jian-Hua Jin , Cheng Quan

{"title":"Calophyllum (Calophyllaceae) with high leaf mass per area from the upper Miocene of Beihai, low-latitude China","authors":"Shu-Ran Tang , Qi-Jia Li , Hui Jia , Jian-Hua Jin , Cheng Quan","doi":"10.1016/j.palwor.2025.200979","DOIUrl":"10.1016/j.palwor.2025.200979","url":null,"abstract":"<div><div>Plant development is highly influenced by ecological conditions, with different latitudes hosting vegetation with distinct component and ecological strategies. However, the ecological strategies of low-latitude plants in deep time remain poorly understood. In this study, we examine well-preserved fossil leaves from the upper Miocene of Beihai, low-latitude China, and describe three species of <em>Calophyllum</em> (Calophyllaceae) based on morphological and anatomical characteristics. Using leaf economic concepts, the ecological strategy of <em>Calophyllum</em> during the late Miocene is also evaluated. Our results suggest that all the three fossil species have leaf mass per area (LMA) higher than their nearest living relatives. It appears that the longer leaf lifespan driven by longer growing season likely contributed to the high LMA and hence the slow-return ecological strategy of <em>Calophyllum</em> in the late Miocene hereof. This study highlights the leaf lifespan in regulation of plant ecological strategies and provides insights into the palaeoecology of low-latitude vegetation during the late Miocene.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200979"},"PeriodicalIF":1.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418152","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}

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New conodont taxa and correlation of the upper San Juan Formation, Dapingian (Ordovician), at Potrerillos Creek, Argentine Precordillera 阿根廷Precordillera Potrerillos Creek地区大坪期（奥陶系）上San Juan组牙形石新分类群及对比

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-07-18 DOI: 10.1016/j.palwor.2025.200994

Matías J. Mango , Guillermo L. Albanesi

{"title":"New conodont taxa and correlation of the upper San Juan Formation, Dapingian (Ordovician), at Potrerillos Creek, Argentine Precordillera","authors":"Matías J. Mango , Guillermo L. Albanesi","doi":"10.1016/j.palwor.2025.200994","DOIUrl":"10.1016/j.palwor.2025.200994","url":null,"abstract":"<div><div>The present study deals with the conodont fauna and its biostratigraphy recorded in the upper 14 m of the San Juan Formation at the Potrerillos Creek section, northern Central Precordillera of Argentina. The analysis of seven conodont samples from levels of biostratigraphic interest allowed the identification of 10,676 conodont elements, assigned to 41 genera and 59 species. One new genus (<em>Resinodus</em> n. gen.) and two new species (<em>Resinodus nalamamacatus</em> n. gen. n. sp. and <em>Tripodus precolaevis</em> n. sp.) are defined, expanding the knowledge of conodont taxonomy for the Dapingian (Middle Ordovician) in Argentina. Recognition of <em>Tripodus precolaevis</em> n. sp., whose range is restricted to the early–middle Dapingian, supports the definition of the <em>Tripodus precolaevis</em> Zone in the upper San Juan Formation. This biozone potentially correlates with the <em>Baltoniodus triangularis</em> Zone in China and Baltica, and possibly also in northwestern Argentina. The <em>Tripodus precolaevis</em> Zone may correlate with the lower part of the <em>Tripodus laevis</em> Zone and the lower part of the <em>Neomultioistodus compressus</em>/<em>Tricladiodus clypeus</em> Zone in North America. The conodont elements from the Potrerillos Creek section have a CAI of 2.5–3, indicating burial paleotemperatures of 85 °C–200 °C. Most elements display overgrowths of silica crystals, while a few elements have recrystallized surface lamella. These fossilization features may be attributed to diagenetic effects due to intense tectonism in the Andean Orogeny.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200994"},"PeriodicalIF":1.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418046","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}

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A thick-headed scolebythid wasp (Hymenoptera: Scolebythidae) from the Early Cretaceous Lebanese amber 早白垩世黎巴嫩琥珀中的一种厚头小蜂（膜翅目：小蜂科）

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-07-16 DOI: 10.1016/j.palwor.2025.200990

Sergio Álvarez-Parra , Sibelle Maksoud

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Lebanese amber: A glimpse into the origins of Recent terrestrial biodiversity 黎巴嫩琥珀：一瞥近代陆地生物多样性的起源

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-10-01 DOI: 10.1016/j.palwor.2025.201033

Dany Azar, Sibelle Maksoud

引用次数: 0

A new representative of the roachoid family Necymylacridae (stem group Dictyoptera) and associated vegetation with insect interactions from the Shanxi Formation (lower Permian), China 中国下二叠世山西组棘螨科新代表及相关植被与昆虫的相互作用

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-07-16 DOI: 10.1016/j.palwor.2025.200991

Artai A. Santos , Stephen Mcloughlin , André Nel

{"title":"A new representative of the roachoid family Necymylacridae (stem group Dictyoptera) and associated vegetation with insect interactions from the Shanxi Formation (lower Permian), China","authors":"Artai A. Santos , Stephen Mcloughlin , André Nel","doi":"10.1016/j.palwor.2025.200991","DOIUrl":"10.1016/j.palwor.2025.200991","url":null,"abstract":"<div><div>A new roachoid species, <em>Necymylacris sinica</em> n. sp., is described from the lower Permian (Asselian, Cisuralian) Shanxi Formation in the Qinshui Basin, North China, based on a partially preserved forewing. This discovery represents the second record of the family Necymylacridae in China and the first from the Shanxi Formation in the Qinshui Basin. The holotype was found co-preserved with a low-diversity assemblage of 14 plant taxa (among 263 fossil-plant specimens), dominated by cordaitalean leaves (<em>Cordaites principalis</em> and <em>Cordaites</em> sp.) and pteridophytes (morphogenera <em>Pecopteris</em> spp.), with lesser proportions of sphenophytes, lycophytes, and seed ferns. The fossil flora and regional geological data suggest a warm, humid, low-diversity forest ecosystem in non-seasonal climates of palaeotropical Cathaysia. Evidence of plant-insect interactions, such as margin feeding, hole feeding, piercing and sucking, galling, oviposition, and seed predation, reveals that a diverse array of herbivorous insects with varying feeding strategies inhabited the Permian palaeoforest of the Qinshui Basin. These findings provide new information about the ecological complexity of early Permian palaeotropical forests during the peak of the Late Paleozoic Ice Age and new insights into the palaeoecology and biodiversity of Cathaysia during this period. The study underscores the importance of historical collections, such as those at the Swedish Museum of Natural History, in advancing our understanding of ancient ecosystems. Taxonomically, <em>Stephanotermopsis rodendorfi</em> <span><span>Laurentiaux, 1966</span></span> is transferred into the family Necymylacridae.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200991"},"PeriodicalIF":1.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418148","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 larger foraminiferal taxa (Hereceina n. gen. and new Borelis species) from upper Priabonian of eastern Türkiye (Turkey): Biostratigraphic and paleoecological implications 土耳其东<s:1> rkiye上Priabonian大有孔虫新种（Hereceina n. gen.和Borelis新种）：生物地层和古生态意义

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-06-13 DOI: 10.1016/j.palwor.2025.200970

Şükrü Acar, Alper Bozkurt

{"title":"New larger foraminiferal taxa (Hereceina n. gen. and new Borelis species) from upper Priabonian of eastern Türkiye (Turkey): Biostratigraphic and paleoecological implications","authors":"Şükrü Acar, Alper Bozkurt","doi":"10.1016/j.palwor.2025.200970","DOIUrl":"10.1016/j.palwor.2025.200970","url":null,"abstract":"<div><div>The Priabonian (Eocene) shallow-water carbonates of the Malatya region (eastern Türkiye) contain rich benthic foraminiferal assemblages. A new calcarinid genus (<em>Hereceina</em> n. gen.) with its type species (<em>Hereceina spinigera</em> n. gen. n. sp.) and two <em>Borelis</em> species (<em>Borelis dizerae</em> n. sp. and <em>Borelis sozerii</em> n. sp.) are systematically described from these deposits. A late Priabonian age, corresponding to SBZ 20, is assigned to the new taxa based on the co-occurrence of biostratigraphic markers such as <em>Heterostegina gracilis</em> and <em>Spiroclypeus carpaticus</em>. Based on microfacies studies, <em>Hereceina spinigera</em> n. gen. n. sp. is documented from inner to proximal middle ramp environments that were influenced by wave and current action. The introduction of these new <em>Borelis</em> species with Y-shaped septula from the upper Priabonian of the region provides new insights into the evolutionary history of the genus. This study highlights the significant potential of the new taxa that appeared during the Eocene–Oligocene marine extinctions to serve as valuable biostratigraphic markers at Tethyan localities.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200970"},"PeriodicalIF":1.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418149","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 ceraphronoid wasps in Cretaceous and Cenozoic ambers from Lebanon, New Jersey, and India (Hymenoptera: Ceraphronoidea) 黎巴嫩、新泽西和印度白垩纪和新生代琥珀中的新蜂类（膜翅目：蜂科）

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-07-18 DOI: 10.1016/j.palwor.2025.200993

Michael S. Engel

引用次数: 0

New insights into the paleobiogeography of teleosauroid crocodylomorphs in Southeast Asia 东南亚鳄鱼类的古生物地理学新认识

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-06-30 DOI: 10.1016/j.palwor.2025.200981

Supanut Bhuttarach , Uthumporn Deesri , Jeremy E. Martin , Sita Manitkoon , Jirasak Charoenmit , Komsorn Lauprasert

{"title":"New insights into the paleobiogeography of teleosauroid crocodylomorphs in Southeast Asia","authors":"Supanut Bhuttarach , Uthumporn Deesri , Jeremy E. Martin , Sita Manitkoon , Jirasak Charoenmit , Komsorn Lauprasert","doi":"10.1016/j.palwor.2025.200981","DOIUrl":"10.1016/j.palwor.2025.200981","url":null,"abstract":"<div><div>Teleosauroids are poorly known from Southeast Asia, with limited records from the Indochina Terrane of Thailand. To better understand their distribution and diversity, we describe new teleosauroid remains from two distinct geological terranes in Thailand. A nearly complete periorbital region and isolated teeth found in association from the Phu Kradung Formation (Upper Jurassic–Lower Cretaceous) of the Indochina Terrane are identified as cf. <em>Indosinosuchus</em> sp. The cranial specimen exhibits periorbital dimensions significantly larger than those of previously described <em>Indosinosuchus</em> specimens, likely representing the largest known individual of the genus and expanding our understanding of morphological diversity within this taxon. The discovery confirms the wide distribution of teleosauroids within the Phu Kradung Formation of the Khorat Plateau during the Late Jurassic to Early Cretaceous. Additionally, a frontal bone, left postorbital, and isolated teeth from the Klong Min Formation (upper Middle–Upper Jurassic) of the Sibumasu Terrane are assigned to Teleosauroidea indet. These remains, morphologically more primitive than <em>Indosinosuchus</em>, represent the first evidence of teleosauroids from southern peninsular Thailand and extend their known temporal range to the Middle Jurassic. Our findings demonstrate that teleosauroids were widely distributed across Thailand’s freshwater environments from the Middle Jurassic through Early Cretaceous, significantly expanding our understanding of their biogeographic distribution in Southeast Asia.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200981"},"PeriodicalIF":1.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418145","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

Spatiotemporal pattern of vegetation evolution in northeastern Tibetan Plateau during the Cenozoic and its climatic significance

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2025-12-01 Epub Date: 2025-06-19 DOI: 10.1016/j.palwor.2025.200977

Yun-Xia Jia , Wen-Chao Zhang , Li-Jun Tian , Zhi-Lin He , Zhao Wang , Qing-Chun Tian

{"title":"Spatiotemporal pattern of vegetation evolution in northeastern Tibetan Plateau during the Cenozoic and its climatic significance","authors":"Yun-Xia Jia , Wen-Chao Zhang , Li-Jun Tian , Zhi-Lin He , Zhao Wang , Qing-Chun Tian","doi":"10.1016/j.palwor.2025.200977","DOIUrl":"10.1016/j.palwor.2025.200977","url":null,"abstract":"<div><div>The modern Asian environment comprises monsoon-dominated East Asia and the arid Asian interior. However, when and how the modern climatic environment of Asia evolved remains controversial. Quantitative and spatio-temporal paleovegetation reconstructions are crucial for addressing this issue. We compiled 10 well-dated pollen records across the northeastern Tibetan Plateau, stretching from western China into eastern China. We used the biomization method to generate a set of biome scores and landscape openness spanning the interval from the Eocene to Recent. Biome reconstructions reveal that five dominant vegetation types have attained the highest scores since ∼42 Ma, namely warm mixed forest, temperate deciduous forest, cool mixed forest, steppe, and desert. Spatially, our results reveal that the climate was predominantly wetter in the west than in the east during the Paleogene, as evidenced by the higher values of landscape openness in the west. Since ∼24 Ma this climate configuration has reversed. Temporally, our results reveal wet-dry climatic fluctuations during the Paleogene, as evidenced by the coexistence of open vegetation and forest vegetation. Then, our results reveal a reorganization of the climatic environment since ∼24 Ma, as evidenced by the presence of forest vegetation types in the east and decreasing trend of landscape openness in the west. Subsequently, our results reveal region-wide aridification since ∼8 Ma, as evidenced by the negative values of landscape openness in many regions. Together with previous paleoclimate records, we infer that the retreat of the Paratethys Sea was responsible for wet-dry fluctuations during the Paleogene. We also infer that the uplift of Central Xizang (Tibet) triggered the permanent reorganization of the Asian environment at the Oligocene/Miocene transition, and that global cooling promoted the subsequent aridification trend.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200977"},"PeriodicalIF":1.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418153","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