REVUE DE MICROPALEONTOLOGIE最新文献_第2页

Preliminary report on Permian radiolarians from the Numakuma peninsula in Japan: Paleontological evidence for the presence of the Ultra-Tamba Belt 关于日本沼沼半岛二叠纪放射虫的初步报告：超丹巴带存在的古生物学证据

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2023.100751

Tsuyoshi Ito, Daisuke Sato

引用次数: 0

Late Permian radiolarian Neoalbaillella caridroiti assemblage from the Loufanggou, Guangyuan-Shangsi area, Sichuan Province, China 中国四川广元上寺地区楼房沟晚二叠世放射虫Neoalbaillella caridroiti组合

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2024.100784

Kiyoko Kuwahara , Akira Yao , Jianxin Yao

引用次数: 0

Guadalupian–Lopingian (Middle–Late Permian) radiolarians from clastic rocks and zircon U–Pb ages of intercalated tuff and tuffaceous sandstone on Sado Island, central Japan 日本中部佐渡岛Guadalupian-Lopingian（中晚二叠世）碎屑岩放射虫及介入性凝灰岩和凝灰质砂岩锆石U-Pb年龄

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2023.100750

Toshiyuki Kurihara , Keisuke Suzuki , Tsuyoshi Ito , Hirotaka Ishida , Hayato Ueda , Atsushi Matsuoka

{"title":"Guadalupian–Lopingian (Middle–Late Permian) radiolarians from clastic rocks and zircon U–Pb ages of intercalated tuff and tuffaceous sandstone on Sado Island, central Japan","authors":"Toshiyuki Kurihara , Keisuke Suzuki , Tsuyoshi Ito , Hirotaka Ishida , Hayato Ueda , Atsushi Matsuoka","doi":"10.1016/j.revmic.2023.100750","DOIUrl":"10.1016/j.revmic.2023.100750","url":null,"abstract":"<div><div><span>We investigated Permian<span><span> strata in the Ota area of the Kosado Hills, Sado Island, central Japan, and their depositional ages were determined based on radiolarian </span>biostratigraphy<span> and zircon U–Pb dating. We also focused on the geology of the region and its lithologic correlation with other geological units in the Inner Zone of Southwest Japan. The radiolarian analysis identified the presence of </span></span></span><em>Follicucullus porrectus</em> and <em>F. dilatatus</em><span> in mudstone exposed on the coastline of Ota, indicating a middle–late Capitanian to early Changhsingian age. Mudstone exposed along the forest road in the Ota area contained </span><em>Cariver charveti</em>, suggesting a late Capitanian–early Changhsingian age. Zircon U–Pb dating of the tuff layer intercalated within the <em>Follicucullus</em>-bearing mudstone yielded a weighted-mean age of 259.9 ± 2.0 Ma, corresponding to a Capitanian–Wuchiapingian age. The tuffaceous sandstone interbedded with mudstone containing <em>C. charveti</em><span> yielded a weighted-mean age of 264.1 ± 6.3 Ma, which covers the Roadian to Wuchiapingian ages. The youngest model peak age (256.6 ± 2.6 Ma; Wuchiapingian) provides the most reliable estimate of the maximum depositional age. The Paleozoic strata in the Kosado Hills have previously been correlated with the Ultra-Tamba and Maizuru belts in Southwest Japan based on fossil<span> occurrences. Our findings indicate that the Permian rocks in the Kosado Hills exhibit differences in lithology from those in the Ultra-Tamba belt but share similarities with the upper Guadalupian–Lopingian strata in the Maizuru belt.</span></span></div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"85 ","pages":"Article 100750"},"PeriodicalIF":0.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136009398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Desmoinesian (middle Pennsylvanian) radiolarians from the Excello Shale of Kansas, USA 美国堪萨斯州 Excello 页岩中的 Desmoinesian（宾夕法尼亚中期）放射虫

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2024.100772

Galina P. Nestell , John P. Pope , Merlynd K. Nestell

{"title":"Desmoinesian (middle Pennsylvanian) radiolarians from the Excello Shale of Kansas, USA","authors":"Galina P. Nestell , John P. Pope , Merlynd K. Nestell","doi":"10.1016/j.revmic.2024.100772","DOIUrl":"10.1016/j.revmic.2024.100772","url":null,"abstract":"<div><div><span>Desmoinesian (Middle Pennsylvanian) radiolarians<span> are described from carbonate concretions found in the black phosphatic facies in strata of the Excello Shale Member of the Fort Scott Limestone (Marmaton Group) in southeastern Kansas (K69 section), USA. Ten new species of radiolarians are described: </span></span><em>Albaillella kansaensis, Holdsworthella trifurca, Pseudoalbaillella deformata, Entactinia jayhawkensis, E. heckeli, E. boardmani, Apophysiacus martiali, Moskovistella insolita, Palacantholithus umbrelliformis</em>, and <em>Ormistonella perrara</em>. The Kansas radiolarian assemblage is different from the assemblage described from the Excello Shale of Iowa in the preservation and taxonomic composition. The radiolarians are preserved as pyritized internal molds or regular tests replaced by pyrite, and unidentifiable organic material. The domination of entactinarians and albaillellarians in the Kansas assemblage and their poor to excellent preservation indicate the formation of early diagenetic calcareous concretions in anoxic conditions. The appearance of the spicular radiolarian genus <em>Palacantholithus</em><span> indicates an influx of relatively cold water connected with upwelling. The Kansas location was much farther offshore (450 km basinward) compared to the Iowa localities suggesting a difference in thermocline depth, affecting water temperature, oxygenation, and nutrients.</span></div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"85 ","pages":"Article 100772"},"PeriodicalIF":0.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140277137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Late Paleozoic radiolarians from the Kozuki Formation of the Ultra-Tamba Terrane in the Kanbayashi area, northern Kyoto Prefecture, Southwest Japan 日本西南京都北部Kanbayashi地区Ultra-Tamba地体Kozuki组晚古生代放射虫

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2024.100806

Yoshiaki Sugamori , Kotomi Ikeda

{"title":"Late Paleozoic radiolarians from the Kozuki Formation of the Ultra-Tamba Terrane in the Kanbayashi area, northern Kyoto Prefecture, Southwest Japan","authors":"Yoshiaki Sugamori , Kotomi Ikeda","doi":"10.1016/j.revmic.2024.100806","DOIUrl":"10.1016/j.revmic.2024.100806","url":null,"abstract":"<div><div>The Ultra-Tamba Terrane within the Inner Zone of Southwest Japan is interpreted as a Guadalupian (Middle Permian) to Lopingian (Late Permian) subduction-related accretionary complex. The Kozuki Formation is the UT3 unit of the terrane and is mainly present in eastern Okayama and western Hyogo prefectures. Recently, it was shown that the Kozuki Formation is also distributed in the Kanbayashi area of northern Kyoto Prefecture based on the similarity of its lithological features and tectonic position. The exact age of the formation was unknown until now. In this study, radiolarian fossils are discovered in two sections, allowing for the determination of the ages of cherts and clastics within the Kozuki Formation. The cherts yielded radiolarians such as <em>Curvalbailella u-forma</em> (Holdsworth and Jones) and <em>Curvalbailella chilensis</em> (Ling and Forsythe), which indicate a latest Carboniferous or early Cisuralian, Early Permian age, and the mudstones yielded radiolarians such as <em>Latentifistula banchengensis</em> Wang, <em>Pseudotormentus</em> cf. <em>kamigoriensis</em> De Wever and Caridroit, <em>Quadriremis gracilis</em> (De Wever and Caridroit), which indicate Guadalupian to Lopingian, but most likely Guadalupian, age. This study establishes the Kozuki Formation in the studied area as a part of the UT3 unit of the Ultra-Tamba Terrane, confirms its age correlation with other regions, and emphasizes the northeasternmost extension of the unit.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"85 ","pages":"Article 100806"},"PeriodicalIF":0.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New species of encrusting foraminifera from the Carboniferous (Upper Mississippian) of Central Russia 俄罗斯中部石炭纪（上密西西比统）有壳无孔虫新品种

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-10-16 DOI: 10.1016/j.revmic.2024.100819

Olev Vinn , Aleksandr A. Mironenko

引用次数: 0

Actinomma sogndalensis n. sp. (Radiolaria, Polycystina) an endemic species to the Sognefjord, western Norway 放线菌sogndalensis n. sp.（放射菌属，Polycystina）：挪威西部Sognefjord的特有种

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-09-16 DOI: 10.1016/j.revmic.2024.100818

Jane K. Dolven , Kjell R. Bjørklund

{"title":"Actinomma sogndalensis n. sp. (Radiolaria, Polycystina) an endemic species to the Sognefjord, western Norway","authors":"Jane K. Dolven , Kjell R. Bjørklund","doi":"10.1016/j.revmic.2024.100818","DOIUrl":"10.1016/j.revmic.2024.100818","url":null,"abstract":"<div><div>Studies of polycystine radiolarians (marine planktonic protists) have shown that great faunistic differences occur between the different Norwegian fjord systems. Plankton studies by Swanberg and Bjørklund in the early 1980′s identified more than 55 polycystine radiolarian species, including two unidentified forms of <em>Actinomma</em> noted as sp. A and sp. B. The discovery of fully developed adult individuals of the same taxa in plankton material from the Sogndalsfjord in 2010 revealed that the sp. A form in fact was a juvenile stage of the sp. B form. Its general morphologic skeletal structure differs so much from the other local <em>Actinomma</em> species that the whole concept of how to define, and what to include in, this genus has been taken up here for discussion.</div><div>This new species, described herein as <em>Actinomma sogndalensis</em>, has mainly been found in the Sognefjord, which leads us to conclude that <em>A. sogndalensis</em> might be an example of a real endemic fjord species. Due to the fragility of the latticed cortical shells, only the two thick primary medullary shells are preserved in the sediment. This led us to include a discussion regarding the number of concentric shells and their relevance or usefulness as a taxonomic criterion at the genus level in conjunction with this description of the new species. The genus <em>Actinomma</em> is emended to include species with two or multiple lattice spheres. <em>Cromyechinus</em> is by us still regarded as a junior synonym of <em>Actinomma</em>.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"86 ","pages":"Article 100818"},"PeriodicalIF":0.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Late Silurian – Early Devonian marine ostracods from Kuan Tung Formation, Satun Province, southern Thailand 泰国南部沙屯省宽东组晚志留世-早泥盆世海相介形类

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-09-10 DOI: 10.1016/j.revmic.2024.100817

Anucha Promduang, Anisong Chitnarin

引用次数: 0

A reassessment of the type-materials of Ostracoda (Crustacea, Oligostraca) lost in the “Museu Nacional” Great Fire of September 2, 2018 2018年9月2日“国家博物馆”大火中损失的介形虫类（甲壳纲，寡介形虫科）的类型材料重新评估

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-08-29 DOI: 10.1016/j.revmic.2024.100807

Lucas Silveira Antonietto , David Ian Machado Alves , Cláudio Magalhães Almeida , Dermeval Aparecido do Carmo , Vera Maria Medina da Fonseca

{"title":"A reassessment of the type-materials of Ostracoda (Crustacea, Oligostraca) lost in the “Museu Nacional” Great Fire of September 2, 2018","authors":"Lucas Silveira Antonietto , David Ian Machado Alves , Cláudio Magalhães Almeida , Dermeval Aparecido do Carmo , Vera Maria Medina da Fonseca","doi":"10.1016/j.revmic.2024.100807","DOIUrl":"10.1016/j.revmic.2024.100807","url":null,"abstract":"<div><div>On September 2, 2018, a catastrophic fire occurred at the “Museu Nacional” in Rio de Janeiro, Brazil, nearly destroying its once rich scientific collections. That accident latter generated a movement from the museum and the scientific community to restore their collections, either by bringing new specimens to the institution or by providing information about the ones lost in the tragedy. Herein we present our contribution to that effort: high-resolution scanning electron microscope images of holotypes and paratypes of 23 fossil ostracod species and subspecies that were destroyed by the “Museu Nacional” fire. These taxa occur in several Brazilian and central West African Lower Cretaceous lithological units, and some of them (<em>Cypridea [Pseudocypridina] faveolata</em> and <em>Sebastianites fida minor</em>) are even guide fossils to these strata. The present images and taxonomical updates of species – including new combinations for <em>Sebastianites fida minor, Sebastianites</em>? <em>minima, Sebastianites</em>? <em>sostensis granulata</em> and <em>Theriosynoecum ventrostriatum</em> – will also enable future studies of ostracod species from Brazilian and central West African Lower Cretaceous basins, as they provide an accurate system of identification in absence of direct observation of these type specimens once housed at the “Museu Nacional” scientific collections.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"86 ","pages":"Article 100807"},"PeriodicalIF":0.7,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Taxonomic significance of the radiolarian family Tetraspinocyrtiidae Kozur and Mostler and related families from the Sorgun Ophiolitic Mélange, southern Turkey 土耳其南部索尔贡蛇绿岩夹层中的放射虫科 Tetraspinocyrtiidae Kozur 和 Mostler 及相关科的分类意义

IF 0.7

REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-08-22 DOI: 10.1016/j.revmic.2024.100808

Péter Ozsvárt , Paulian Dumitrica , Patrice Moix

引用次数: 0