Palaeoworld最新文献_第7页

High-precision age constraint for the Xiyingzi Bed of the Jiufotang Formation in western Liaoning, Northeast China 辽西地区九佛塘组西营子层高精度年龄约束

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-12-04 DOI: 10.1016/j.palwor.2024.11.009

Li-Jun Zhang , Si-Yu Song , Shu-An Ji , Su-Chin Chang , Jahandar Ramezani , Fei Gao , Bo Wang , Hai-Chun Zhang , Da-Ran Zheng

{"title":"High-precision age constraint for the Xiyingzi Bed of the Jiufotang Formation in western Liaoning, Northeast China","authors":"Li-Jun Zhang , Si-Yu Song , Shu-An Ji , Su-Chin Chang , Jahandar Ramezani , Fei Gao , Bo Wang , Hai-Chun Zhang , 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}

引用次数: 0

Glabrobournonia Morris and Skelton (Rudist, Bivalvia) from the Campanian–Maastrichtian of Türkiye: Taxonomy, palaeoecology and palaeobiogeography 来自比利时坎帕尼亚-马斯垂克地区的Glabrobournonia Morris和Skelton (Rudist, Bivalvia)：分类学、古生态学和古生物地理学

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-11-19 DOI: 10.1016/j.palwor.2024.11.003

Sacit Özer

{"title":"Glabrobournonia Morris and Skelton (Rudist, Bivalvia) from the Campanian–Maastrichtian of Türkiye: Taxonomy, palaeoecology and palaeobiogeography","authors":"Sacit Özer","doi":"10.1016/j.palwor.2024.11.003","DOIUrl":"10.1016/j.palwor.2024.11.003","url":null,"abstract":"<div><div>A re-examination of the specimens described as <em>Bournonia anatolica</em> Özer and <em>Bournonia</em> sp. from central and southeastern Anatolia, Türkiye reveals that they have diagnostic characteristics of the genus <em>Glabrobournonia</em> Morris and Skelton. New rudist material from the middle Campanian to late Maastrichtian mixed siliciclastic-carbonate sequences in the Sakarya Zone (Eastern and Central Pontides), in the east of the Anatolid–Tauride Block and in southeastern Anatolia (north of the Arabian Platform) in Türkiye also showed the occurrence of <em>Glabrobournonia anatolica</em> (Özer) and <em>Glabrobournonia arabica</em> Morris and Skelton. <em>Glabrobournonia anatolica</em> is characterised by a large, rectangular right valve with pronounced growth lamellae, a salient ventral carina and interband, a less salient dorsal carina, a concave indentation anterior band, a slightly concave posterior band and broad and smooth anterior surface as well as the absence of radial ribbing and ligamentary infolding. <em>Glabrobournonia arabica</em> has the diagnostic features of the species, such as small valves, conical right valves with a smooth surface, ventral and dorsal carinae and two concave indentations of anterior and posterior bands separated by an interband. The palaeoecological characteristics of these lateral clinger morphotypes are presented according to growth geometries. For the cosmopolitan genus <em>Glabrobournonia</em>, two main migration routes have been proposed for the Campanian–Maastrichtian time: one along the southern margin of the Tethys from the United Arab Emirates–Oman border region to the Zagros (Iran) and southeastern Anatolia, connecting to the northern margin of the Tethys to the Anatolid–Tauride Block and the Sakarya Zone in Türkiye, and another from the United Arab Emirates–Oman border region to the Zagros Zone (Iran) and the Tarim Basin, connecting the northern and southern margins of the eastern Tethys.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100895"},"PeriodicalIF":1.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684926","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

Coniferous woods from the Albian (Piedra Clavada Formation) of Argentine Patagonia 阿根廷巴塔哥尼亚的Albian （Piedra Clavada组）的针叶林

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-11-19 DOI: 10.1016/j.palwor.2024.11.004

Cosme F. Rombola , Roberto R. Pujana , Daniela P. Ruiz , Inés Aramendía

{"title":"Coniferous woods from the Albian (Piedra Clavada Formation) of Argentine Patagonia","authors":"Cosme F. Rombola , Roberto R. Pujana , Daniela P. Ruiz , Inés Aramendía","doi":"10.1016/j.palwor.2024.11.004","DOIUrl":"10.1016/j.palwor.2024.11.004","url":null,"abstract":"<div><div>Five samples of silicified fossil woods were collected from the Lower Cretaceous Piedra Clavada Formation, Santa Cruz Province, Argentina. The preservation of the fossil woods varies. Two very poorly preserved specimens are classified as “indeterminate conifers”. Based on the wood anatomy of the remaining specimens, we identified two taxa: <em>Brachyoxylon patagonicum</em> (one specimen), possibly related to the extinct conifer family Hirmeriellaceae, and cf. <em>Brachyoxylon</em>/<em>Agathoxylon</em> (two specimens), possibly related to the Hirmeriellaceae or the Araucariaceae. All samples have distinct growth ring boundaries, indicating annual seasonality. Furthermore, the curvature of the rings and the minimum estimated diameter suggest that the woods came from mature trees. Decay patterns resembling those induced by contemporary xylophagous fungi were identified in one specimen. The presence of fossil woods possibly related to the Hirmeriellaceae and Araucariaceae in the Piedra Clavada Formation is consistent with previous palynological studies of this stratigraphic unit. These records support the dominance of conifers in the Early Cretaceous forests of Argentine Patagonia.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100896"},"PeriodicalIF":1.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684929","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

First late Silurian (Ludfordian–Pridoli?) brachiopods from Iran 第一批来自伊朗的晚志留世（卢德福-普里多利？）腕足动物

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-11-17 DOI: 10.1016/j.palwor.2024.11.002

Leonid E. Popov , Mansoureh Ghobadi Pour , Tatyana L. Modzalevskaya , Vachik Hairapetian

{"title":"First late Silurian (Ludfordian–Pridoli?) brachiopods from Iran","authors":"Leonid E. Popov , Mansoureh Ghobadi Pour , Tatyana L. Modzalevskaya , Vachik Hairapetian","doi":"10.1016/j.palwor.2024.11.002","DOIUrl":"10.1016/j.palwor.2024.11.002","url":null,"abstract":"<div><div>Ludlow to Pridoli? rhynchonellate brachiopods, previously unknown in Iran, are described from the upper Dahaneh-Kalut Formation, outcropping in the Derenjal Mountains on the northern margin of the East-Central Iranian platform. The brachiopod faunas comprise eight species assigned to eight genera including <em>Ancillotoechia bicostata</em> n. sp., <em>Isorthis</em> (<em>Ovalella</em>) <em>equimulticostellata</em> n. sp., <em>Protathyris golshanensis</em> n. sp., and <em>Macropleura kuhestanensis</em> n. sp. The Ludfordian age of these taxa is supported by the occurrences of the conodonts <em>Ozarkodina crispa</em> (Walliser) and <em>Ozarkodina</em> sp. cf. <em>O</em>. <em>snajdri</em> (Walliser). Three low richness and high abundance brachiopod communities are recognised, all of which inhabited a shallow-water carbonate shelf within the Benthic Assemblages 2 and 3. Despite the prevalence of cosmopolitan genera, the Iranian Ludfordian–Pridoli? brachiopod faunas show little interaction with geographically closest contemporaneous faunas of the Australian sector of Gondwana and South China plate.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 4","pages":"Article 100894"},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684927","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

High-resolution sedimentary cyclostratigraphy and astronomical signals in the Upper Ordovician of Southwest China 西南上奥陶统高分辨率沉积旋回地层与天文信号

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-11-08 DOI: 10.1016/j.palwor.2024.11.001

Kai Wang , Ming-Song Li , Peng Tang , Jun-Xuan Fan , Ren-Bin Zhan , Jian-Bo Liu

{"title":"High-resolution sedimentary cyclostratigraphy and astronomical signals in the Upper Ordovician of Southwest China","authors":"Kai Wang , Ming-Song Li , Peng Tang , Jun-Xuan Fan , Ren-Bin Zhan , Jian-Bo Liu","doi":"10.1016/j.palwor.2024.11.001","DOIUrl":"10.1016/j.palwor.2024.11.001","url":null,"abstract":"<div><div>During the Late Ordovician, a series of significant biotic and geological events occurred globally and more specifically in South China. The development of a high-resolution orbital cyclostratigraphic framework and a precise radioisotope dating has greatly enhanced our understanding of the factors controlling these events. In this study, quantitative proxies for palaeo-water depths, derived from sedimentological analyses, serve as indicators for orbital cyclostratigraphic assessment.</div><div>Relatively shallow-marine carbonates with well-developed shallowing-upward cycles were deposited in the western Yangtze Platform during the Late Ordovician. High-resolution geochronological data were obtained from high-precision isotope dilution thermal ionization mass spectrometry (ID-TIMS) zircon dating of K-bentonite beds at the studied section. This facilitated sedimentary facies and environmental analyses, as well as the recognition of sedimentary cycles. Based on mud content, bioclastic content, and laminations, four sedimentary facies, twelve sedimentary microfacies, and forty-eight shallowing-upward sedimentary cycles were identified in the Daduhe Formation.</div><div>Through comparative time series analysis of depth rank, lime mudstone-calcareous mudstone binary data, non-carbonate content, and anhysteretic remanent magnetization (ARM), astronomical cycles and trends in sedimentation rates have been identified. This study confirms the reliability of radioisotope dating, establishing a 0.46 Myr duration for the <em>Dicellograptus complexus</em> graptolite biozone and a 0.96 Myr duration for the <em>Paraorthograptus pacificus</em> graptolite biozone, both with an empirical uncertainty of 0.1 Myr. This research proposes a reliable method for identifying astronomical cycles through high-precision sedimentary microfacies and cyclostratigraphy, in comparison with rock magnetic cyclostratigraphy studies.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 3","pages":"Article 100893"},"PeriodicalIF":1.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135702","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

Cynometroxylon aegyptiacum n. sp. (Fabaceae-Detarioideae) from the Miocene of Egypt with palaeoclimatic and biogeographic insights 埃及中新世的古气候和生物地理学研究

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-11-06 DOI: 10.1016/j.palwor.2024.10.007

Zainab M. El-Noamani, Nermeen A. Ziada

{"title":"Cynometroxylon aegyptiacum n. sp. (Fabaceae-Detarioideae) from the Miocene of Egypt with palaeoclimatic and biogeographic insights","authors":"Zainab M. El-Noamani, Nermeen A. Ziada","doi":"10.1016/j.palwor.2024.10.007","DOIUrl":"10.1016/j.palwor.2024.10.007","url":null,"abstract":"<div><div>A new morphospecies of <em>Cynometroxylon</em> is described from the early Miocene deposits of the Gebel El-Khashab Formation exposed along the Cairo-Bahariya desert road in the north Western Desert of Egypt. It is compared with the 13 currently recognized fossil wood species of <em>Cynometroxylon</em>/<em>Cynometra</em> recorded worldwide. The characteristics of this fossil wood align with those typical of the non-seasonal tropical climate during the Miocene period, indicating its habitat at that time. This habitat is consistent with that of some living species of its analogue <em>Cynometra</em>. Upon reviewing the worldwide biogeography of the genus, its extensive distribution in Africa and Asia was observed. Furthermore, the biogeography of the subfamily Detarioideae was compiled, tracing its evolutionary history back to Africa. This confirms the possibility that family Fabaceae likely originated in Africa during the Late Cretaceous to early Paleogene, with subsequent dispersal into Asia and South America. The present record is indicative of a subtropical to warm tropical climate which prevailed in the Miocene of Egypt.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 3","pages":"Article 100892"},"PeriodicalIF":1.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135698","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

The microcoprolites Favreina iranensis from the Upper Jurassic Mozduran Formation, Kopeh Dagh basin, Iran 伊朗Kopeh Dagh盆地上侏罗统Mozduran组微粪化石Favreina iranensis

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-10-29 DOI: 10.1016/j.palwor.2024.10.006

Maryam Motamedalshariati , Diego A. Kietzmann , Farokh Ghaemi

引用次数: 0

Mississippian foraminifera from the Lueyang Formation in Guozhen area, South Qinling Orogen, China 南秦岭国镇地区庐阳组密西西比系有孔虫

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-10-22 DOI: 10.1016/j.palwor.2024.10.005

Zi-Dong Yu , Yang Shen , Xun-Lian Wang , Zhi-Hua Yang , Xiu-Chun Jing

{"title":"Mississippian foraminifera from the Lueyang Formation in Guozhen area, South Qinling Orogen, China","authors":"Zi-Dong Yu , Yang Shen , Xun-Lian Wang , Zhi-Hua Yang , Xiu-Chun Jing","doi":"10.1016/j.palwor.2024.10.005","DOIUrl":"10.1016/j.palwor.2024.10.005","url":null,"abstract":"<div><div>The Mianlue Suture Belt, located in the southern part of the Qinling Orogenic Belt, is a significant tectonic zone in China that formed by the collision of the South China Block with the North China Block during Triassic. The Lueyang Formation, distributed along the southern margin of the Mianlue Suture Belt, is one of the major components of the Late Paleozoic marine strata of the Mianlue Belt. Unfortunately, only a few published paleontological studies are available. This hinders the understanding of the age and sequence of this formation and the evolution of the Mianlue Ocean. Herein, we report, for the first time, at least 51 species and 25 genera of foraminifera from the Lueyang Formation at the Zhuyuanba section. The Zhuyuanba foraminiferal fauna is dominated by <em>Eostaffella</em>, <em>Archaediscus</em>, <em>Paraarchaediscus</em>, <em>Omphalotis</em>, <em>Bradyina</em>, <em>Janischewskina</em>, <em>Endothyra</em> and <em>Mediocris</em>, and possesses some stratigraphically important taxa such as <em>Bradyina cribrostomata</em>, <em>Janischewskina</em> spp. and <em>Paraarchaediscus stilus</em>. Two foraminiferal zones are recognized in the Lueyang Formation, ascendingly the Visean <em>Paraarchaediscus stilus</em> Zone and Serpukhovian <em>Bradyina cribrostomata</em> Zone. So, the age of the Lueyang Formation at the Zhuyuanba section is considered from Visean to Serpukhovian. This paper confirms for the first time that the Lueyang Formation contains the Visean and Serpukhovian strata, providing new paleontological evidence for understanding the evolution of the Mianlue Ocean during the Late Paleozoic.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 3","pages":"Article 100890"},"PeriodicalIF":1.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095989","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

The tibiotarsus of a giant darter from the upper Miocene of Amazonia and weight estimates for fossil darters 来自亚马逊河中新世上部的一种巨型鲷鱼的胫跗和鲷鱼化石的重量估计

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-10-18 DOI: 10.1016/j.palwor.2024.10.003

Edson Guilherme , Ighor D. Mendes , Carlos D’Apolito , Lucy G. Souza , Francisco R. Negri , Kathellen G. Magalhães , Jonas P. Souza-Filho

{"title":"The tibiotarsus of a giant darter from the upper Miocene of Amazonia and weight estimates for fossil darters","authors":"Edson Guilherme , Ighor D. Mendes , Carlos D’Apolito , Lucy G. Souza , Francisco R. Negri , Kathellen G. Magalhães , Jonas P. Souza-Filho","doi":"10.1016/j.palwor.2024.10.003","DOIUrl":"10.1016/j.palwor.2024.10.003","url":null,"abstract":"<div><div>Fossil darters are known from every continent since the Oligocene. However, it was in the Miocene of South America that this group reached its maximum diversity. <em>Macranhinga ranzii</em> is the largest darter from the Solimões Formation, described based on the left and right femora as well as the distal end of a tarsometarsus and four vertebrae. Here, we describe for the first time the left tibiotarsus of this species by comparing it with the tibiotarsus of the extant <em>Anhinga anhinga</em> and other fossil anhingids. We also calculated and compared the body mass of <em>Ma</em>. <em>ranzii</em> to that of all known tibiotarsi fossil anhingids using two calculation methods. The tibiotarsus described here is morphologically similar to that of other anhingids, however, in addition to its large size and robustness, it presents diagnostic characters (e.g., torus linearis) that allow us to attribute it to the genus <em>Macranhinga</em> and differentiate it from other fossil species of this genus whose tibiotarsi are known. The estimated body mass of <em>Ma</em>. <em>ranzii</em> ranges from 14.39 to 19.1 kg, ranking it the highest estimated body mass among the darters where the tibiotarsi were found.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 3","pages":"Article 100887"},"PeriodicalIF":1.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135696","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

Dimorphism in family Editiidae Knüpfer, 1967 (Ostracoda) 编辑科kn_pfer的二态性，1967（介形虫目）

IF 1.7 3区地球科学

Palaeoworld Pub Date : 2024-10-18 DOI: 10.1016/j.palwor.2024.09.009

Dmitry B. Sobolev

{"title":"Dimorphism in family Editiidae Knüpfer, 1967 (Ostracoda)","authors":"Dmitry B. Sobolev","doi":"10.1016/j.palwor.2024.09.009","DOIUrl":"10.1016/j.palwor.2024.09.009","url":null,"abstract":"<div><div>This paper reports the peculiarities of dimorphism based on some early representatives of the family Editiidae <span><span>Knüpfer, 1967</span></span>. A new genus <em>Blumeditia</em> n. gen., four new species (<em>Blumeditia eleganta</em> n.gen. n. sp., <em>Blumeditia pretzella</em> n. gen. n. sp., <em>Blumeditia auctus</em> n. gen. n. sp., <em>Adeditia tkachovae</em> n. sp.), one new subspecies (<em>Proeditia auriculata dimorpha</em> n. subsp.) and six taxa in open nomenclature (<em>Proeditia</em> aff. <em>cristata</em> <span><span>Bushmina, 1979</span></span>, <em>Proeditia auriculata</em> subsp. 1, <em>Proeditia auriculata</em> subsp. 2, <em>Proeditia</em>? sp. 2, <em>Proeditia</em>? sp. 3, and <em>Blumeditia</em> aff. <em>furcata</em> (<span><span>Sobolev, 1998</span></span>)) are systematically described from deposits of the Famennian–Tournaisian shelf of northeastern Laurussia (North and Subpolar Urals, southern part of the Chernyshev Ridge, Russia). The diagnoses of the genera <em>Adeditia</em> <span><span>Gramm and Egorov, 1986</span></span> and <em>Proeditia</em> <span><span>Bushmina, 1979</span></span> are revised. The stratigraphic ranges of the genera <em>Proeditia</em> <span><span>Bushmina, 1979</span></span>, <em>Blumeditia</em> n. gen., and <em>Adeditia</em> <span><span>Gramm and Egorov, 1986</span></span> (20 taxa) are shown. Possible phylogenetic relationships of the studied taxa are presented. The three taxa belonging to the closely related genera <em>Adeditia</em> <span><span>Gramm and Egorov, 1986</span></span>, <em>Blumeditia</em> n. gen., and <em>Proeditia</em> <span><span>Bushmina, 1979</span></span> show dimorphic differences of the extradomiciliar supratype that have not previously been documented in members of the family Editiidae <span><span>Knüpfer, 1967</span></span>.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 3","pages":"Article 100889"},"PeriodicalIF":1.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143273218","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