REVUE DE MICROPALEONTOLOGIE最新文献

Ostracods taxonomic study and other faunistic record from Costa Bausa (Buccheri, Southeastern Sicily)

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REVUE DE MICROPALEONTOLOGIE Pub Date : 2025-01-20 DOI: 10.1016/j.revmic.2024.100830

Francesco Sciuto , Angela Baldanza , Agatino Reitano

{"title":"Ostracods taxonomic study and other faunistic record from Costa Bausa (Buccheri, Southeastern Sicily)","authors":"Francesco Sciuto , Angela Baldanza , Agatino Reitano","doi":"10.1016/j.revmic.2024.100830","DOIUrl":"10.1016/j.revmic.2024.100830","url":null,"abstract":"<div><div>In Costa Bausa, along the left side of the Torrente Mazzarino (NE Buccheri, SE Sicily), marine sands referred to the Pliocene by many authors for their stratigraphic position and the molluscs fauna they contain, crop out unconformably above the Miocene carbonate succession. In the present study, the taxonomy of ostracods of these sands is performed and new species are described, the foraminifera are analyzed for the first time and a taxonomic list of molluscs is also provided. The ostracod fauna is composed of specimens mostly belonging to shallow marine genera, such as <em>Aurila, Neonesidea, Bosquetina, Callistocythere, Carynocythereis, Cistacythereis, Cytherelloidea, Cytheretta, Costa, Graptocythere, Grinioneis, Loxoconcha, Mutilus, Caudites, Pontocythere, Semicytherura, Tenedocythere, Urocythereis, Verrucocythereis</em> and <em>Xestoleberis</em>. Among them, eight species are newly described: <em>Perissocytheridea</em> (<em>Kroemmelbeinella</em>) <em>hiblaea</em> n. sp., <em>Aurila costabausaensis</em> n. sp., <em>Aurila daphnidis</em> n. sp., <em>Aurila mazzarinoensis</em> n. sp., <em>Aurila sanctiandreae</em> n. sp., <em>Tenedocythere forticostata</em> n. sp., <em>Cytheretta buccheriensis</em> n. sp., <em>Verrucocythereis verrucomurata</em> n. sp.</div><div>Among planktonic foraminifera, only few specimens of <em>Orbulina universa, O. suturalis, Trilobatus trilobus</em> and <em>T. sacculifer</em> occur. The assemblage of benthic foraminifera is characterized by <em>Amphistegina lobifera, A. lessonii, Elphidium crispum, E. macellum, Ammonia beccarii, A. parkinsoniana, Lobatula lobatula, Cancris auricula, Patellina corrugata, Quinqueloculina seminulum, Massilina oblonga, Oolina exagona</em> and <em>O. lineata</em>.</div><div>The molluscs association found has helped to relate the studied levels to the Late Pliocene.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"86 ","pages":"Article 100830"},"PeriodicalIF":0.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571485","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

Spumellarian, collodarian, and entactinarian radiolarians observed in sediment traps from the southern Ionian Sea (eastern mediterranean)

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REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-04 DOI: 10.1016/j.revmic.2024.100820

Marie Cueille , Taniel Danelian , Kenji M. Matsuzaki

{"title":"Spumellarian, collodarian, and entactinarian radiolarians observed in sediment traps from the southern Ionian Sea (eastern mediterranean)","authors":"Marie Cueille , Taniel Danelian , Kenji M. Matsuzaki","doi":"10.1016/j.revmic.2024.100820","DOIUrl":"10.1016/j.revmic.2024.100820","url":null,"abstract":"<div><div>Based on sediment trap material collected from the southern Ionian Sea (Eastern Mediterranean), this study describes and illustrates 54 radiolarian species, 48 of which are spumellarians, 3 collodarians and 3 entactinarians. The presence of <em>Larcopyle buetschlii chenmuhongi, Phorticium polycladum</em>, and <em>Polysolenia collina</em> is reported for the first time from the Mediterranean Sea. We also identified for the first time <em>Spongodendron macrodoras</em> in the eastern Mediterranean Sea, previously known only from the western Mediterranean. Despite their geographical proximity, only six species are in common with the radiolarian fauna of the Adriatic Sea. We reviewed the biogeographical distribution and the known depth habitat of all species identified here at the species level. Most of them are known from tropical to temperate regions, although we also encountered few species with cold-water affinities such as <em>Lithelius minor, Lithelius nautiloides, Hexacromyum enthacanthum, Rhizosphaera mediana</em>, and <em>Spongodiscus resurgens</em>. Most of the encountered species are surface to sub-surface dwellers, including several known symbiont-bearing species, and only few are deep-dwellers, such as <em>Hexacromyum enthacanthum, Tetrapetalon echinaster, Lithelius nautiloides</em> and <em>Lithelius minor</em>.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"86 ","pages":"Article 100820"},"PeriodicalIF":0.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570515","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

Progress on late Paleozoic radiolarians and their biostratigraphic applications – In memory of Martial CARIDROIT

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REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2024.100821

Taniel Danelian , Paula Noble , Patrick De Wever

引用次数: 0

Radiolarian age and geochemical characteristics of the Permian bedded chert sequence in the Soi Dao area, Chanthaburi, Southeast of Thailand 泰国东南部尖竹汶府 Soi Dao 地区二叠纪层状燧石序列的放射虫年龄和地球化学特征

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REVUE DE MICROPALEONTOLOGIE Pub Date : 2024-12-01 DOI: 10.1016/j.revmic.2024.100786

Waraphorn Phromsuwan , Yoshihito Kamata , Takuya Hayashi , Kei-ichi Kobayashi , Thasinee Charoentitirat , Katsumi Ueno , Apsorn Sardsud

{"title":"Radiolarian age and geochemical characteristics of the Permian bedded chert sequence in the Soi Dao area, Chanthaburi, Southeast of Thailand","authors":"Waraphorn Phromsuwan , Yoshihito Kamata , Takuya Hayashi , Kei-ichi Kobayashi , Thasinee Charoentitirat , Katsumi Ueno , Apsorn Sardsud","doi":"10.1016/j.revmic.2024.100786","DOIUrl":"10.1016/j.revmic.2024.100786","url":null,"abstract":"<div><div><span>Radiolarian<span> assemblages and geochemistry from </span></span>Permian<span> chert<span><span><span><span> and siliceous mudstone in the Soi Dao, Chanthaburi area of southeastern Thailand, are used here to determine the age and </span>depositional environment of these rocks. Moderate-to-well preserved radiolarian were obtained from three study areas, from bedded cherts and siliceous mudstones of Early Asselian to Early Capitanian, </span>Sakmarian to Roadian, and Capitanian to Changhsingian age. Considering the </span>lithofacies<span><span><span>, age, and chemical composition of the rocks, a primary stratigraphy can be reconstructed that consists, in ascending order, of basaltic rocks, radiolarian bedded cherts, siliceous mudstones, and clastics made of alternations of sandstone and mudstone. Geochemical analyses, particularly chondrite-normalized REEs patterns of chert and siliceous mudstone, show a gradual change in the degree of the Ce-negative anomaly, which decrease towards the younger strata. This change indicates that the depositional environment of the Permian rock was at the beginning highly influenced by </span>hydrothermal activity, which decreased with time, while the influx of terrestrial clastics increased. Permian bedded cherts accompanied by </span>basalts and siliceous mudstones recognized in the study area are very similar to the Paleo-Tethys bedded cherts in terms of their lithofacies and microscopic features; however, their depositional period is much shorter, indicating that they were deposited in another oceanic basin (i.e., a back-arc basin). The chemical composition also shows that the influence of hydrothermal activity weakened over time and the influence of terrigenous clastics increased.</span></span></span></div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"85 ","pages":"Article 100786"},"PeriodicalIF":0.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141039762","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

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

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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

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

Kiyoko Kuwahara , Akira Yao , Jianxin Yao

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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

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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}

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Late Paleozoic radiolarians from the Kozuki Formation of the Ultra-Tamba Terrane in the Kanbayashi area, northern Kyoto Prefecture, Southwest Japan

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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}

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New species of encrusting foraminifera from the Carboniferous (Upper Mississippian) of Central Russia

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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