REVUE DE MICROPALEONTOLOGIE最新文献

{"title":"Late Sinemurian and Early Pliensbachian Radiolaria from Mount Rettenstein (Northern Calcareous Alps, Austria). Part 1. Nassellaria","authors":"Tim Cifer,&nbsp;Špela Goričan","doi":"10.1016/j.revmic.2023.100717","DOIUrl":"https://doi.org/10.1016/j.revmic.2023.100717","url":null,"abstract":"<div><p>Well-preserved and diverse radiolarian assemblages were recovered from a continuous 95 m-thick Lower Jurassic succession of grey siliceous limestone and marl on Mount Rettenstein (Northern Calcareous Alps, Austria). A total of seven radiolarian samples across the Late Sinemurian–Early Pliensbachian boundary were studied – five samples were assigned to the Upper Sinemurian and two samples to the Lower Pliensbachian. In total, 188 radiolarian species have been identified. In this article, we present 90 species and 33 genera belonging to the order Nassellaria. One genus and five species are described as new: <em>Katroma hasta</em> Cifer nov. sp., <em>Tipiforma missoniae</em> Cifer nov. gen. nov. sp., <em>Trexus rotundus</em> Cifer nov. sp., <em>Wrangellium mediterraneum</em> Cifer nov. sp., and <em>Zhamoidellum spinosum</em> Cifer nov. sp. In the Sinemurian, the most abundant nassellarian genera are <em>Droltus, Parahsuum</em> and <em>Saitoum</em>. The Pliensbachian yields an entirely different nassellarian assemblage dominated by the genera <em>Zhamoidellum</em> and <em>Lantus</em>. Compiled stratigraphic and geographic ranges as well as a synonymy, descriptions and remarks are provided.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"79 ","pages":"Article 100717"},"PeriodicalIF":0.9,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49838367","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}

{"title":"Ostracoda non-marine biogeography in Campanian-Maastrichtian ages: South America, Africa and India connections","authors":"Silvia Regina Gobbo,&nbsp;Reinaldo J. Bertini","doi":"10.1016/j.revmic.2023.100716","DOIUrl":"https://doi.org/10.1016/j.revmic.2023.100716","url":null,"abstract":"<div><p><span><span>Non-marine ostracods from the </span>Upper Cretaceous<span> of Southern Hemisphere<span> (South America, Africa and India) are studied and discussed for the purpose of establishing a biostratigraphy scheme and their paleogeographic distribution. The paleogeographic analysis performed here reveals ten distinct groupings of species: (1) Neuquén and Paraná basins (Brazil) are characterized by </span></span></span><em>Ilyocypris riograndensis, Neuquenocypris minor, Neuquenocypris tenuipunctata, Wolburgiopsis vicinalis</em> and <em>Vecticypris</em> aff. <em>punctata</em>; (2) <em>Wolburgiopsis neocretacea</em> is characteristic of Los Llanos Formation (Sub-Andean Basin, Argentina) and Neuquén (Argentina) and Parana basins (Brazil); (3) <em>Ilyocypris triebeli</em> is characteristic of Sub-Andean Basins (El Molino Formation, Bolivia; Los Llanos, Ciénaga del Rio Huaco formations, Argentina), and Yacoraite formations (Salta Basin); Neuquén (Argentina), Paraná and Campos basins (Brazil): <em>Ilyocypris triebeli</em>; (4) Neuquén (Argentina), Paraná and Santos basins (Brazil): <em>Fossocytheridea lobulata</em>; (5) Paraná, Santos (Brazil), Congo (R. D. Congo) basins and Lameta Formation (India): <em>Stenocypris cylindrica</em>; (6) Paraná (Brazil) and Congo (R. D. Congo) basins: <em>Paracypria makawensis</em> and Species “K 530 b” Grekoff, 1960; (7) Yacoraite Formation (Salta Basin) and Neuquén Basin (Argentina), Paraná (Brazil) and Congo (R. D. Congo) basins: <em>Ilyocypris argentiniensis</em>; (8) Neuquén (Argentina), Paraná (Brazil) and Congo (R. D. Congo) basins: <em>Alicenula kwangoensis;</em> (9) Paraná Basin (Brazil) and Lameta Formation (India): <em>Candona chuiensis, Cypridopsis huenei, Paracandona jabalpurensis</em> and <em>Paralimnocythere hasuii</em>; (10) Paraná (Brazil), Congo (R. D. Congo) basins and Lameta Formation (India): <em>Periosocypris megistus</em>. Other generic correlations, especially the genera <em>Wolburgiopsis, Neuquenocypris, Virgatocypris, Altanicypris</em> and <em>Talycypridea</em>, reinforce this paleobiogeographical similarities and a Campanian-Maastrichtian age to the Bauru Group (Paraná Basin) and the Kwango Series (Congo Basin), whose age was still in need of refinement.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"79 ","pages":"Article 100716"},"PeriodicalIF":0.9,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49838368","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}

{"title":"Upper Jurassic to Lower Cretaceous benthic foraminifera from South Tibet (Tethyan Himalayas): systematic, biostratigraphic, and palaeoecologic implications","authors":"Clémentine Peggy Anne-Marie Colpaert ,&nbsp;Gang Li","doi":"10.1016/j.revmic.2023.100713","DOIUrl":"https://doi.org/10.1016/j.revmic.2023.100713","url":null,"abstract":"<div><p><span>The present study represents the first attempt to described foraminiferal fauna of the Gucuo Locality and is among the first work to illustrate the Upper Jurassic to Lower Cretaceous<span> benthic foraminifers of South </span></span>Tibet. The material consists in a combination of unpublished data on the Gucuo Section and published data on the Gyangze; Weimei, and Bandingsi sections.</p><p><span>A total of 239 specimens have been currently recorded in the Upper Jurassic to Lower Cretaceous Menkadun and Gucuo formations of the Gucuo locality. To facilitate further researches on foraminifers from the Tethyan Himalayas, a total of 59 species from 38 genera have currently been repertory and described. Among the recorded specimens, a few species are significant biostratigraphic markers used to identify and constrain the age of four foraminiferal assemblages. The </span><em>Textularia</em> aff. <em>haeusleri</em><span> assemblage contains a few numbers of agglutinated species very similar to the one described in the Oxfordian to Kimmeridgian<span> Nupra Formation of the Thakkola Region. The Tithonian </span></span><em>Trochammina quinqueloba</em><span><span> assemblage is a widespread biostratigraphic horizon recorded in both southern and northern parts of South Tibet, as well as in the Indian and the Proto-Atlantic oceans. The Berriasian to </span>Valanginian </span><em>Trochammina abrupta</em><span><span> assemblage contains typical Early Cretaceous<span><span> foraminifers. It confirms the Jurassic/Cretaceous boundary should be delineated at the base of the shale Unit of the Gucuo Formation, although it was previously attributed to the base of the volcaniclastic sandstone units using </span>ammonite data. This latest being currently associated to the Valanginian to </span></span>Hauterivian </span><em>Ammobaculites crepinae–Textularia bettenstaedti</em> foraminiferal assemblage.</p><p>A palaeoecological reconstruction along a southwest to northeast transect of South Tibet, Himalayas, is proposed to understand the composition and dynamic of foraminiferal assemblages along with palaeoenvironmental changes. The morphogroup approach has been selected as the best methods to illustrate both sea-level and oxic changes. The northern tectonic zone of South Tibet is associated with the abundance of deep-water agglutinated foraminifers, which suggests a deep environment beyond the shelf break. The southern tectonic zone of South Tibet is rich in typical species of shallow environment and was located on the neritic shelf. The morphogroup analysis reveals localized, periodic disaerobic conditions on the sea-floor. The Jurassic to Cretaceous Boundary interval was associated with a drop of the sea-level, whereas the rise in diversity and abundance of marginal-sea taxa during the Valanginian to Hauterivian times underline a higher sea-level and a pulse in the development of epeiric seas in the southern part of South Tibet.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"78 ","pages":"Article 100713"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49790089","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}

{"title":"The Permian and Triassic history of the ostracod genus Liuzhinia","authors":"Marie-Béatrice Forel ,&nbsp;Anisong Chitnarin","doi":"10.1016/j.revmic.2023.100714","DOIUrl":"https://doi.org/10.1016/j.revmic.2023.100714","url":null,"abstract":"<div><p><span>The ostracod genus </span><em>Liuzhinia</em><span> has been reported from Permian and Triassic marine deposits mainly from the Tethyan area but its classification and history remain obscure. Here we report on the discovery of a rare steinkern of </span><em>Liuzhinia antalyaensis</em><span> from the Early Triassic of South China bearing the first known adductor muscle scars, allowing for first insights into its supra-generic classification. We demonstrate that </span><em>Liuzhinia</em> does not belong to Bairdiidae and propose that the observed muscle scars could illustrate ancestral characters of Paracyprididae or Bythocyprididae. We summarize the diversity of <em>Liuzhinia</em> through time, including the newly described <em>Liuzhinia phetchabunensis</em> Forel &amp; Chitnarin sp. nov. from the Middle Permian of central Thailand, and discuss its geographical distribution and environmental preferences over its stratigraphical range.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"78 ","pages":"Article 100714"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49869120","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}

{"title":"Preliminary data on ostracods and foraminifers living on coralligenous bioconstructions offshore Marzamemi (Ionian Sea, SE Sicily)","authors":"F. Sciuto ,&nbsp;C. Altieri ,&nbsp;D. Basso ,&nbsp;F. D'Alpa ,&nbsp;G. Donato ,&nbsp;V.A. Bracchi ,&nbsp;M. Cipriani ,&nbsp;A. Guido ,&nbsp;A. Rosso ,&nbsp;R. Sanfilippo ,&nbsp;D. Serio ,&nbsp;A. Viola","doi":"10.1016/j.revmic.2023.100711","DOIUrl":"https://doi.org/10.1016/j.revmic.2023.100711","url":null,"abstract":"<div><p><span><span>On the bottom of the circalittoral zone of the Mediteranean Sea, prevalently calcareous algae, and subordinately </span>bryozoans<span>, sponges and serpulids give rise to bioconstructions called Coralligenous (algal reef). It with different aspects, mostly columnar or dome-shaped, and different zoo-phitological compositions represent a true biodiversity hot spots on the sea bottom. Ostracod and foraminifer do not participate directly in the construction of the reef but they can contribute significantly to the increase in its degree of biodiversity. The present study wants to be the first attempt to analyze the composition and structure of the microfaunas associated with bioconstructions in an area located along the Ionian coast of SE Sicily offshore Marzamemi (SR, Italy). For this purpose, seven samples, picked up from the surface of the bioconstructions, were collected between 33 and 37 m depth using the sorbona sampling device. Living ostracod associations include 22 taxa: clearly dominant are the specimens belonging to the genus </span></span><em>Xestoleberis</em>, followed by the genera <em>Neonesidea, Tenedocythere, Aurila, Loxoconcha, Urocythereis</em>; poorly represented are the genera <em>Carinocythereis, Paradoxostoma</em> and <em>Polycope</em>. Foraminifers associations are almost exclusively represented by benthic phytal taxa and include over 3700 specimens belonging to 130 different taxa. The families quantitatively prevalent, both in terms of richness of species and abundance, are Elphidiidae, followed by Hauerinidae, Cibicididae, Ammoniidae, Homotrematidae, Planorbulinidae, Textulariidae, Cribrolinoididae, Asterigerinatidae, Rosalinidae, Spiroloculinidae and Globigerinidae that are subordinate, while little represented are Astrononionidae, Haplophragmoididae, Polymorphinidae, Ammodiscidae, Ellipsolagenidae, Spirillinidae etc.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"78 ","pages":"Article 100711"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49830889","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}

{"title":"Taxonomic revision of Paracoskinolina fleuryi Decrouez and Moullade, 1974, ‘primitive’ orbitolinid foraminifera from the early Cenomanian of Greece and its stratigraphic and palaeogeographic records","authors":"Felix Schlagintweit","doi":"10.1016/j.revmic.2023.100712","DOIUrl":"https://doi.org/10.1016/j.revmic.2023.100712","url":null,"abstract":"<div><p>A small-sized orbitolinid was originally reported as <em>Coskinolinoides</em> cf. <em>texanus</em><span> Keijzer from Cenomanian carbonates of western Greece in the early seventies, later described as the new species </span><em>Paracoskinolina fleuryi</em> Decrouez and Moullade. However, its internal test structure does not fit the characteristics of the genus <em>Paracoskinolina</em> Moullade emend. Arnaud-Vanneau. The original generic assignment is re-instated herein, but its more complex marginal zone does not allow for assignment to <em>Coskinolinoides texanus</em><span> described from the middle–upper Albian of Texas. </span><em>Coskinolinoides fleuryi</em><span><span> (Decrouez and Moullade) comb. nov., becoming the second nominal species of the genus, shows an unusual broad and dispersed distribution (Senegal, Tunisia, Spain, Greece, Philippines) with stratigraphic records encompassing the latest </span>Aptian?–Albian to early Cenomanian interval. Despite the present contribution, the genus </span><em>Paracoskinolina</em> still contains additional species that need taxonomic revision.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"78 ","pages":"Article 100712"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49815233","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}

{"title":"First report of Early Pleistocene ostracods from the Agira sedimentary succession (Central Eastern Sicily, Italy)","authors":"Francesco Sciuto ,&nbsp;Angela Baldanza ,&nbsp;Agatino Reitano","doi":"10.1016/j.revmic.2022.100693","DOIUrl":"10.1016/j.revmic.2022.100693","url":null,"abstract":"<div><p><span>A new ostracod association, referred to the Early Pleistocene on the basis of the nannoplancton analysis, is studied and described. It comes from the so-called “Agira marls” outcropping in contrada Santa Venera, SW of the Agira town (Central Eastern Sicily). The ostracod fauna is composed by 39 species, 11 species being here proposed and described as new: </span><em>Eucytherura sanctavenerae</em> n. sp., <em>Aurila seguenzai</em> n. sp., <em>Aurila diodoroi</em> n. sp., <em>Cimbaurila ramdohri</em> n. sp., <em>Tenedocythere eleonorae</em> n. sp., <em>Loxoconcha pokornyi</em> n. sp., <em>Paracytheridea longicristata</em> n. sp., <em>Cistacythereis oertlii</em> n. sp., <em>Costa agyrina</em> n. sp., <em>Echinocythereis hartmannii</em> n. sp. and <em>Tegmenia mariasophiae</em> n. sp. The remaining are known species or left in open nomenclature.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"77 ","pages":"Article 100693"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127026056","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}

{"title":"Aptian ostracods from the Santana Group, Araripe Basin, Brazil","authors":"Juliana Guzmán ,&nbsp;Enelise Katia Piovesan ,&nbsp;Débora Soares de Almeida-Lima ,&nbsp;Ariany de Jesus e Sousa ,&nbsp;Virgínio Henrique de Miranda Lopes Neumann","doi":"10.1016/j.revmic.2022.100694","DOIUrl":"10.1016/j.revmic.2022.100694","url":null,"abstract":"<div><p><span><span><span><span>The Class Ostracoda provides a well preserved and diverse microfossil succession throughout the </span>Aptian Santana Group, Araripe Basin, Brazil. The Santana Group, consisting of the Barbalha, Crato, Ipubi and Romualdo formations, records the post-rift sequence (Alagoas local stage) of the </span>Gondwana break-up. The Alagoas Stage is characterised by </span>ostracods grouped as </span><em>Cytheridea</em>? spp. 201–218 of which several have been identified as belonging to <em>Pattersoncypris</em> Bate and <em>Damonella</em> Anderson. From 2 well cores and 10 outcrops of the Santana Group, 25 taxa were identified, 5 of which are here newly described. Throughout the Santana Group, <em>Pattersoncypris micropapillosa</em> Bate and <em>Damonella grandiensis</em> Tomé, Lima Filho and Neumann were recovered. Restricted to the Barbalha Formation, <em>Candonopsis</em>? <em>alagoensis</em> Tomé, Lima Filho and Neumann and <em>Pattersoncypris cucurves</em> nov. sp are abundant. The Crato Formation shows higher ostracod diversity with <em>Damonella grandiensis</em> being the most abundant and associated with <em>Cypridea araripensis</em> Silva, <em>Brasacypris subovatum</em> Do Carmo, Coimbra, Whatley, Antonietto and Citon, <em>Damonella pumila</em> nov. sp., <em>Pattersoncypris alta</em> (Antonietto, Gobbo, Do Carmo, Assine, Fernandes and Silva), <em>Zonocypris berthoui</em> Piovesan, Melo, Cabral and Guzmán, <em>Zonocypris dorsoconvexa</em> Piovesan, Melo, Cabral and Guzmán, <em>Ilyocypris coimbrai</em> nov. sp., <em>Neuquenocypris berthoui</em> Colin and Dépêche, <em>Neuquenocypris</em> sp., <em>Rhinocypris spinata</em> nov. sp., <em>Theriosynoecum silvai</em> (Silva), <em>Theriosynoecum</em> sp., <em>Timiriasevia</em>? sp. and <em>Alicenula martinsi</em> (Silva). The Ipubi and Romualdo formations record abundant <em>Pattersoncypris crepata</em> (Do Carmo, Coimbra, Whatley, Antonietto and Citon) in association with <em>P. alta, Pattersoncypris kroemmelbeini</em> nov. sp., <em>P. symmetrica</em> (Krömmelbein and Weber) and <em>Alicenula martinsi</em> (Silva). <em>Theriosynoecum colini</em> Do Carmo, Coimbra, Whatley, Antonietto and Citon, <em>Ilyocypris coimbrai</em> nov. sp. and <em>Rhinocypris spinata</em> nov. sp. also occur in the Ipubi Formation.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"77 ","pages":"Article 100694"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114982400","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}

{"title":"Marine ostracods from the Ladinian of Slovenia","authors":"Marie-Béatrice Forel ,&nbsp;Tea Kolar-Jurkovšek ,&nbsp;Bogdan Jurkovšek","doi":"10.1016/j.revmic.2022.100691","DOIUrl":"10.1016/j.revmic.2022.100691","url":null,"abstract":"<div><p><span>The Ladinian<span><span> stage in the Middle Triassic is poorly documented in terms of marine </span>ostracods diversity. Silicified ostracods have been retrieved from three sections of Middle Triassic age in Slovenia (Rob, Kamna Gorica, Vintarjevec), providing new insights into the taxonomic structure and distribution. Sixty-four species belonging to 33 genera and 13 families are here reported, including two newly described species: </span></span><em>Mirabairdia slovenica</em> sp. nov. and <em>Leviella alexi</em> sp. nov. Not considering assemblages that are significantly incomplete, the assemblages point to stable subtidal conditions. The occurrence of several species shows the existence of migration routes between the Germanic Basin and the Slovenian Basin in the Ladinian.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"76 ","pages":"Article 100691"},"PeriodicalIF":0.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114118244","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}

{"title":"Taxonomic and architectural remarks on Anatoliella Sirel, 1998 (Paleocene larger benthic foraminifera) and the Anatoliellidae Sirel, 2013","authors":"Felix Schlagintweit ,&nbsp;Michel Septfontaine","doi":"10.1016/j.revmic.2022.100692","DOIUrl":"10.1016/j.revmic.2022.100692","url":null,"abstract":"<div><p><em>Anatoliella</em> Sirel (type species <em>A. ozalpiensis</em><span>) was described from the Paleocene of Turkey as an agglutinated conical-trochospiral larger benthic foraminifera displaying a complex exoskeleton (reticulate network) and endoskeletal pillars, originally ascribed to the Ataxophragmiidae. Later, </span><em>Anatoliella</em> has been included in the eponymous family Anatoliellidae Sirel characterized, alongside other features, by a complex exoskeleton (beams and rafters) and an endoskeleton consisting of thick pillars. A reinvestigation of <em>Anatoliella</em>, based on the original illustrations and specimens from the Paleocene of Iran, reveals a different test structure. We conclude that the pillars recognized by Sirel in longitudinal sections must instead be referred either to first order vertical partitions (beams) in shallow tangential sections, or to a central helicospiral columella in axial sections, leading to an emendation of the diagnosis of the genus. Consequently, the diagnosis of the family Anatoliellidae is also emended because of these new structural observations. A new suprageneric classification for <em>Anatoliella</em> and the allied genus <em>Gyroconulina</em> Schroeder &amp; Darmoian is put for discussion.</p></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"76 ","pages":"Article 100692"},"PeriodicalIF":0.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124401148","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}