Palaeoworld最新文献

{"title":"Devonian Lingulichnus and in situ lingulids: Taphonomy and paleoenvironments of preservation","authors":"Rodrigo Scalise Horodyski ,&nbsp;Renata Guimarães Netto ,&nbsp;Daniel Sedorko","doi":"10.1016/j.palwor.2024.200906","DOIUrl":"10.1016/j.palwor.2024.200906","url":null,"abstract":"<div><div>Lingulids are significant infaunal elements of Lower to Middle Devonian in the Paraná Basin, Brazil, with <em>Lingulichnus</em> traces sometimes found in association with <em>in situ</em> lingulids specimens (Lingulida, Brachiopoda). These trace fossils are typically confined to offshore and transitional offshore-to-lower shoreface environments. This study investigates the relationship between <em>Lingulichnus</em> and <em>in situ</em> lingulids, explores their depositional and paleobiological implications. Four taphonomic modes were identified: (i) autochthonous — <em>in situ</em>, isolated lingulids normally associated with <em>Lingulichnus verticalis</em> or <em>L</em>. <em>inclinatus</em>; (ii) allochthonous — lingulids with reworking evidence (e.g., disarticulated or fragmented shells); (iii) autochthonous sub-primary position — <em>in situ</em> lingulids associated to <em>Lingulichnus hamatus</em>; (iv) temporary sub-primary position — <em>in situ</em> lingulids, isolated or associated to <em>L</em>. <em>hamatus</em> or <em>L</em>. <em>verticalis</em>. Except for the former, these taphonomic modes present high paleoecological resolution, and therefore, paleobiological implications. The <em>in situ</em> lingulids, with small size (≤ 1 cm), occur associated with <em>Lingulichnus</em>, suggesting fast burial under high sedimentation rates, and are concentrated in initial transgressive systems tracts in the study area. In this way, isolated <em>in situ</em> lingulids or associated with <em>Lingulichnus</em> can be a good indicator of high sedimentation rates, and demonstrate the preferential preservation of small organism unable to escape from the fast burial.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 200906"},"PeriodicalIF":1.7,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642670","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}

{"title":"A second progonocimicid (Hemiptera: Coleorrhyncha) from the Middle Cretaceous Kachin amber of Myanmar","authors":"Yi-Jun You ,&nbsp;Tian Jiang ,&nbsp;Xin-Er Guan ,&nbsp;Beata Bieszczad ,&nbsp;Jacek Szwedo","doi":"10.1016/j.palwor.2024.200904","DOIUrl":"10.1016/j.palwor.2024.200904","url":null,"abstract":"<div><div>From the Late Permian to the Late Cretaceous, the ancient family Progonocimicidae of hemipteran suborder Coleorrhyncha was widely distributed across both northern and southern hemispheres. Up until now only one species has been described from Middle Cretaceous Kachin amber. Here we describe a new genus and species <em>Awanis clarus</em> n. gen. n. sp., making it the second report from the Middle Cretaceous Kachin amber and the third record in Cretaceous fossil resins. This increases the taxonomic diversity and morphological disparity of progonocimicids during the Cretaceous.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 200904"},"PeriodicalIF":1.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642672","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}

{"title":"Annual growth bands in the late Carboniferous reef-building colonial rugose coral Ivanovia and their environmental significance","authors":"Yong-Li Zhang ,&nbsp;Wen-Tao Huang ,&nbsp;En-Pu Gong ,&nbsp;Guan-Ming Lai ,&nbsp;Mark A. Wilson ,&nbsp;Jun-Jie Wang ,&nbsp;Ning-Feng Du ,&nbsp;De-Peng Li","doi":"10.1016/j.palwor.2024.200905","DOIUrl":"10.1016/j.palwor.2024.200905","url":null,"abstract":"<div><div>Annual growth bands featuring with high- and low-density bands of massive reef-building corals are considered to be physiological response to seasonal changes in environment and have been widely used as environmental and climatic proxies. Here, we conduct paleontological and geochemical analysis on the late Carboniferous massive coral (<em>Ivanovia</em>) with distinct density bands from Houchang area, South China. Four <em>Ivanovia</em> species including <em>Ivanovia</em> cf. <em>manchurica</em>, <em>I</em>. <em>podolskiensis</em>, <em>I</em>. <em>guizhouensis</em>, <em>Ivanovia</em> sp. have been found in the study area. Aluminum (Al) content and oxygen isotope (δ¹⁸O) of the annual growth bands in <em>Ivanovia</em> sp. suggest that high-density bands are probably formed during hot and rainy seasons with high temperature and more terrestrial input. In contrast, low-density bands are generally constructed during cooler periods with optimal environmental conditions, consistent with the modern tropical reef-building coral density bands. Spectral analysis of the Al and δ¹⁸O series from the <em>Ivanovia</em> sp. reveals significant 2–7 yr cycles close to the cyclicality (2–7 yr) of modern El Niño–Southern Oscillation (ENSO). This study highlights the coral annual growth bands and ENSO-like variability during the late Carboniferous.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 200905"},"PeriodicalIF":1.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642671","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}

{"title":"Larger benthic foraminifera and strontium isotope stratigraphy of the Palaeocene limestones in the Guru area, south Xizang (Tibet): an attempt to build a high-resolution biozonation for the eastern Neo-Tethys","authors":"Xue-Song Ma ,&nbsp;Qing-Hai Zhang ,&nbsp;Lin Ding ,&nbsp;Qian Zhang","doi":"10.1016/j.palwor.2024.200903","DOIUrl":"10.1016/j.palwor.2024.200903","url":null,"abstract":"<div><div>Larger benthic foraminifera (LBF) are one of the most important microfossil groups for Palaeogene biostratigraphy, particularly for shallow-marine carbonate deposits. During the Palaeocene, LBF thrived throughout the Neo-Tethyan Ocean, especially in the eastern Neo-Tethys. However, previous studies on Palaeocene LBF biostratigraphy in this area are relatively poor. This paper presents a detailed stratigraphic study of LBF and strontium isotope from the Palaeocene limestones at Guru, south Tibet. About 68 species of 29 genera were identified, among which 19 species are reported for the first time from south Tibet. Following an Oppel zone approach and adopting some key index fossils that are widely accepted in the Neo-Tethys, four Shallow Benthic Zones (SBZ) ranging from SBZ 2 to SBZ 5 were recognised. Based on detailed LBF changes in each SBZ, we tentatively divide SBZ 2 (uppermost Danian–upper Selandian), SBZ 3 (upper Selandian–middle Thanetian), and SBZ 5 (upper Thanetian) into 3, 3, and 2 sub-biozones, respectively. The ⁸⁷Sr/⁸⁶Sr ratios from 42 bulk carbonate samples were measured to construct an independent age framework for the Palaeocene limestones. Integration of LBF and ⁸⁷Sr/⁸⁶Sr data yielded a high-resolution stratigraphy and provided absolute age controls for each SBZ. Ages of SBZ 2, SBZ 3, SBZ 4, and SBZ 5 were estimated to be ∼62–60 Ma, ∼60–57.4 Ma, ∼57.4–57 Ma, and ∼57–56 Ma, respectively. Our newly built Palaeocene LBF biostratigraphy at Guru needs further testing from other areas in the Neo-Tethyan realm, and is open for refinement and correction in the future.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 200903"},"PeriodicalIF":1.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684501","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}

{"title":"First record of Brachyoxylon wood from Upper Jurassic of Sichuan Basin, Southwest China and its paleoenvironmental significance","authors":"Ao-Wei Xie ,&nbsp;Yong-Dong Wang ,&nbsp;Ning Tian ,&nbsp;Zi-Kun Jiang ,&nbsp;Xiao-Ping Xie ,&nbsp;Shu-Na Xi ,&nbsp;Shi-Hui Bai ,&nbsp;Dieter Uhl","doi":"10.1016/j.palwor.2024.11.007","DOIUrl":"10.1016/j.palwor.2024.11.007","url":null,"abstract":"<div><div>Diverse and abundant foliage fossils are well known and well documented from the Upper Triassic to the Lower and Middle Jurassic of the Sichuan Basin in Southwest China. Yet, the fossil record of Upper Jurassic plants in this region is sparse. Decades ago, hundreds of fossil wood specimens were unearthed from the Upper Jurassic in the central part of the Sichuan Basin, offering important insights into the region’s past terrestrial ecosystems and paleoclimate. Despite their significance, systematic studies of these fossils have been limited. Here, we describe the anatomy of a fossil wood specimen from the Upper Jurassic Penglaizhen Formation in Shehong City, Sichuan Province. The specimen displays key <em>Brachyoxylon</em> features, including mixed radial tracheid pitting in conjunction with araucarioid cross-field pitting. This is the first record of the coniferous wood <em>Brachyoxylon</em> in the central Sichuan Basin. Paleoclimatic evidence from associated leaves, pollen, and sediments, suggests that these trees thrived under generally warm and semi-arid to arid conditions, likely in riparian and lacustrine environments with local water abundance, as indicated by the growth rings with narrow latewood bands.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100899"},"PeriodicalIF":1.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684503","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}

{"title":"A new fossil record of Adiantum (Pteridaceae) from Oligocene of Qaidam Basin, Northwest China and its palaeoenvironmental implications","authors":"Hong-Yu Chen ,&nbsp;Tao Yang ,&nbsp;Ya Li ,&nbsp;Dieter Uhl ,&nbsp;Lei Han ,&nbsp;Jia-Hao Cai ,&nbsp;Li Zhang ,&nbsp;Yong-Dong Wang ,&nbsp;De-Fei Yan","doi":"10.1016/j.palwor.2024.11.006","DOIUrl":"10.1016/j.palwor.2024.11.006","url":null,"abstract":"<div><div><em>Adiantum</em>, a genus of leptosporangiate ferns, belonging to the Pteridaceae, is characterised by marginal sori, reflexed pseudoindusia, and dichotomous venation. As a large and widespread genus, <em>Adiantum</em> includes about 225 extant species and a nearly worldwide distribution, but its fossil record is rather scarce. Here, we describe a new fossil species of <em>Adiantum</em> as <em>A</em>. <em>qaidamense</em> Chen and Yan, n. sp. based on fossil fertile and sterile pinnules from the Oligocene Shangganchaigou Formation in the western Qaidam Basin, Qinghai Province, China. These fossils are mainly characterised by three clearly marginal sori covered by orbicular or oblong pseudoindusia. Both morphological comparisons and cluster analysis indicate that <em>A</em>. <em>qaidamense</em> can be distinguished from previously known species, and <em>A</em>. <em>capillus-junonis</em> seems to be morphologically the most similar extant species. The discovery of <em>A</em>. <em>qaidamense</em> represents an unequivocal macrofossil record of <em>Adiantum</em> in China, and improves our understanding of the palaeogeographic distribution of the genus and the species richness of the Oligocene flora in the western Qaidam Basin. According to the habitats of extant <em>Adiantum</em>, the existence of <em>A</em>. <em>qaidamense</em> probably indicates that there was a flourishing forest growing on probable calcareous soil with abundant water availability during the Oligocene in the western Qaidam Basin.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100898"},"PeriodicalIF":1.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684502","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}

{"title":"A new obolellid brachiopod from the Wirrealpa Limestone (Cambrian; Stage 4), Flinders Ranges, South Australia","authors":"Glenn A. Brock ,&nbsp;Zhi-Liang Zhang ,&nbsp;Lars E. Holmer","doi":"10.1016/j.palwor.2024.11.005","DOIUrl":"10.1016/j.palwor.2024.11.005","url":null,"abstract":"<div><div>Obolellids are a monophyletic group of calcareous brachiopods with a worldwide distribution that often occur near the Series 2 (Stage 4)–Miaolingian Series (Wuliuan Stage) boundary. The poorly known taxon, <em>Obolella wirrialpensis</em> <span><span>Etheridge, 1905</span></span> originally described from the lower Cambrian Wirrealpa Limestone in the Flinders Ranges has several unique character traits including prominent “stepped” concentric lamellae and, unusually for the family, lacks any type of radial ornament. The ventral valve has a well-defined acuminate beak and single asymmetrical tooth on the left side of a raised, orthocline ventral interarea platform that aligns with a wide median notch in the dorsal valve. This unique suite of character traits reveals the taxon to be a new endemic obolellid genus, here revised as <em>Jagoellus</em> n. gen., part of the late Stage 4 <em>Chalasiocranos</em>-<em>Kaimenella</em> shelly fossil zone and lower <em>Kostjubella djagoran</em> brachiopod assemblage zone from Australia.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100897"},"PeriodicalIF":1.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684500","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}

{"title":"Pseudoconocardium licharewi Zavodowsky, 1960, the latest representative of the extinct class Rostroconchia (Mollusca)","authors":"Alexey V. Mazaev ,&nbsp;Alexander S. Biakov","doi":"10.1016/j.palwor.2024.11.008","DOIUrl":"10.1016/j.palwor.2024.11.008","url":null,"abstract":"<div><div>Rostroconchs are one of the “minor classes” of the phylum Mollusca. They were especially diverse in Early and Middle Palaeozoic, but by the end of Late Palaeozoic the group’s diversity had sharply declined. This study shows that rostroconchs completely disappeared from the fossil record before the great end-Permian mass extinction event. The paper offers the first review of all Permian rostroconch localities in Northeast Russia and discusses their possible depositional settings. All records are precisely referenced to the zonal bivalve scale of Northeast Asia, calibrated and correlated with the International Chronostratigraphic Chart using SHRIMP and ID-TIMS dating, taking into account δ¹³C_org chemostratigraphic data. All Permian rostroconchs in this region are represented by different forms of preservation of the same species — <em>Pseudoconocardium licharewi</em> <span><span>Zavodowsky, 1960</span></span> and are distributed in the interval: the second half of the Artinskian — the lower part of the Changhsingian. Thus, the species in question is the latest known representative of rostroconch in the world. The type series of <em>Pseudoconocardium licharewi</em>, type species of the genus <em>Pseudoconocardium</em> <span><span>Zavodowsky, 1960</span></span>, as well as specimens housed in the collection of the Borissiak Paleontological Institute of the Russian Academy of Sciences, are examined. Based on a detailed study of shell morphology, an emended generic diagnosis and a new description are presented here. It is also shown that the genus <em>Pseudoconocardium</em> is monotypic.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100900"},"PeriodicalIF":1.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642792","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}

{"title":"Upper Cretaceous (Cenomanian–lower Campanian) nannofossils and sequence stratigraphy of southwestern Crimea","authors":"Ekaterina Shcherbinina,&nbsp;Yuri Gavrilov","doi":"10.1016/j.palwor.2024.11.010","DOIUrl":"10.1016/j.palwor.2024.11.010","url":null,"abstract":"<div><div>The first high-resolution study of the Cenomanian to lower Campanian calcareous nannofossils of two most continuous but poor in macrofossils sections of southwestern Crimea allowed the detailed division of these successions on the basis of standard nannofossil zonations and the correlation with Tethyan and Boreal Upper Cretaceous. After initial Cenomanian sea-level fall, nannofossil assemblages increase their abundance and taxonomic diversity toward the end of Cenomanian. The most of the Cenomanian bioevents are recognised in the sedimentary record. The Cenomanian/Turonian transition is the most stratigraphically intricate interval in the Late Cretaceous Crimean basin. The lowest occurrences (LOs) of <em>Cylindralithus biarcus</em>, <em>Quadrum intermedium</em>, <em>Eprolithus octopetalus</em>, <em>Ahmuellerella octoradiata</em> are identified in the upper Cenomanian. The highest occurrences (HOs) of some stratigraphically important for this time span taxa like <em>Corollithion kennedyi</em>, <em>Cretarhabdus striatus</em> and <em>Axopodorhabdus albianus</em> are found significantly above the levels defined as relevant subzonal boundaries (UC3e, UC4b and UC5b, respectively). The TOC-rich sediments corresponding to Bonarelli Level (OAE2) is intercalated in the upper part of the upper Cenomanian limestones (undivided interval of UC5c-UC6a subzone/zone). <em>Helenea chiastia</em> is scarce in the studied succession and its HO cannot be used for definition of zonal boundary (UC6) and the base of Turonian. The most reliable bioevent closest to the Cenomanian/Turonian boundary in this basin is the LO of <em>Eprolithus moratus</em> (base of UC6b subzone). The middle Turonian to lower Campanian nannofossil assemblages display the succession of the main bioevents similar to those in Tethyan basin, but show earlier LOs of <em>Micula</em> and <em>Reinhardtites</em> in the middle Turonian.</div><div>Nannofossil biostratigraphy revealed the stratigraphic range of hiatuses in this sedimentary record. Being combined with the levels of the major facies changes, these levels enabled the recognition of five Cenomanian and four Turonian sequence boundaries consistent with the sequence stratigraphy established for Europe. Two sharp erosional surfaces occurred in the upper part of the studied succession correspond to the Coniacian KCo1 and Santonian KSa2 sequences.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100902"},"PeriodicalIF":1.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684508","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}

{"title":"High-precision age constraint for the Xiyingzi Bed of the Jiufotang Formation in western Liaoning, Northeast China","authors":"Li-Jun Zhang ,&nbsp;Si-Yu Song ,&nbsp;Shu-An Ji ,&nbsp;Su-Chin Chang ,&nbsp;Jahandar Ramezani ,&nbsp;Fei Gao ,&nbsp;Bo Wang ,&nbsp;Hai-Chun Zhang ,&nbsp;Da-Ran Zheng","doi":"10.1016/j.palwor.2024.11.009","DOIUrl":"10.1016/j.palwor.2024.11.009","url":null,"abstract":"<div><div>The Jehol Biota includes exceptionally well-preserved fossils that are major components of Early Cretaceous land ecosystems. The youngest example of the Jehol Biota occurs in the Jiufotang Formation, which potentially records palaeoenvironmental factors triggering evolutionary turnover. However, the lack of stratigraphic correlations and uncertain age horizons for many fossil taxa lead to conflicting interpretations of events. This study describes a new significant fossiliferous bed (Xiyingzi Bed) from the upper Jiufotang Formation of the Baomayingzi-Yuanjiawa outcrop in western Liaoning, Northeast China. High-precision CA-ID-TIMS U-Pb analysis of a tuff sample from the Xiyingzi Bed provides an age of 121.272 ± 0.040/0.068/0.15 Ma, representing the first reliable age for the upper Jiufotang Formation in western Liaoning.</div><div>Vertebrate fossils preliminarily reported from this bed include the confuciusornithid and enantiornithine birds, the istiodactylid pterosaur, the non-hadrosaurid iguanodontian dinosaur, the long-necked choristoderan reptiles, the sinemydid turtles, and the polyodontid and sinamiid fish. These fossils were previously reported from the lower horizons, indicating stable development of the late Jehol Biota. New results from the Xiyingzi Bed provides a glimpse of the late Jehol biota before transforming into a typical mid-Cretaceous biota in western Liaoning. Systematic biostratigraphic and chronostratigraphic analysis of the Xiyingzi Bed helps the evolutionary interpretations of the late Jehol Biota and the correlation of the Jiufotang Formation within different basins of western Liaoning.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100901"},"PeriodicalIF":1.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684928","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}