Pub Date : 2025-10-09DOI: 10.1016/j.revmic.2025.100871
Tsuyoshi Ito , Naotomo Kaneko , Takuya Itaki
Microfossils play a vital role in paleontology, geology, and paleoceanography. However, their small size makes them difficult to observe and renders them largely unfamiliar to the general public. We created enlarged models of radiolarians, representative of siliceous microfossils from the Phanerozoic, using micro-computed tomography (micro-CT) and a three-dimensional (3D) printer. The enlarged models are exhibited at the Geological Museum of the Geological Survey of Japan, AIST, and smaller models are also available for purchase. The smaller models allow the public to physically interact with microfossils. This initiative contributes to the dissemination of knowledge about radiolarians among the general public and supports the conservation of natural resources as substitutes for macrofossils.
{"title":"Hand-held radiolarian models created using micro-CT and 3D printer","authors":"Tsuyoshi Ito , Naotomo Kaneko , Takuya Itaki","doi":"10.1016/j.revmic.2025.100871","DOIUrl":"10.1016/j.revmic.2025.100871","url":null,"abstract":"<div><div>Microfossils play a vital role in paleontology, geology, and paleoceanography. However, their small size makes them difficult to observe and renders them largely unfamiliar to the general public. We created enlarged models of radiolarians, representative of siliceous microfossils from the Phanerozoic, using micro-computed tomography (micro-CT) and a three-dimensional (3D) printer. The enlarged models are exhibited at the Geological Museum of the Geological Survey of Japan, AIST, and smaller models are also available for purchase. The smaller models allow the public to physically interact with microfossils. This initiative contributes to the dissemination of knowledge about radiolarians among the general public and supports the conservation of natural resources as substitutes for macrofossils.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100871"},"PeriodicalIF":1.0,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265438","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}
Pub Date : 2025-09-26DOI: 10.1016/j.revmic.2025.100870
Marcelo de A. Carvalho , Anna Claudia Amaral Juliace
The fire that devastated the Museu Nacional of Brazil in Rio de Janeiro in 2018 led to the loss of significant portions of its scientific collections, including the paleopalynology slide archive. This article documents the evolution of the paleopalynological collection, from its historical development to the catastrophic impact of the fire, and the subsequent efforts for recovery and reconstruction. The reconstitution process involved the donation of materials from partner institutions, the preparation of new slides, and the creation of a digital infrastructure enabling remote access and long-term preservation. The integration of outreach activities and public engagement highlights the broader cultural and educational significance of the collection. By presenting the strategies and collaborative networks mobilized after the disaster, this study contributes to ongoing discussions about the preservation of scientific heritage in contexts of institutional vulnerability.
2018年，位于巴西里约热内卢的巴西国家博物馆（Museu national of Brazil）被大火烧毁，导致其大量科学藏品损失，包括古古生物学幻灯片档案。本文记录了古生物学藏品的演变，从其历史发展到火灾的灾难性影响，以及随后为恢复和重建所做的努力。重建过程包括从合作机构捐赠材料，准备新的幻灯片，以及创建一个能够远程访问和长期保存的数字基础设施。外联活动和公众参与的结合凸显了这些藏品更广泛的文化和教育意义。通过介绍灾后动员的战略和合作网络，本研究有助于在制度脆弱性背景下保护科学遗产的持续讨论。
{"title":"From destruction to reconstruction: The paleopalynology collection of the Museu Nacional (National Museum) of Brazil after the fire","authors":"Marcelo de A. Carvalho , Anna Claudia Amaral Juliace","doi":"10.1016/j.revmic.2025.100870","DOIUrl":"10.1016/j.revmic.2025.100870","url":null,"abstract":"<div><div>The fire that devastated the <em>Museu Nacional</em> of Brazil in Rio de Janeiro in 2018 led to the loss of significant portions of its scientific collections, including the paleopalynology slide archive. This article documents the evolution of the paleopalynological collection, from its historical development to the catastrophic impact of the fire, and the subsequent efforts for recovery and reconstruction. The reconstitution process involved the donation of materials from partner institutions, the preparation of new slides, and the creation of a digital infrastructure enabling remote access and long-term preservation. The integration of outreach activities and public engagement highlights the broader cultural and educational significance of the collection. By presenting the strategies and collaborative networks mobilized after the disaster, this study contributes to ongoing discussions about the preservation of scientific heritage in contexts of institutional vulnerability.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100870"},"PeriodicalIF":1.0,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145157857","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}
This study retraces the early taxonomic history of ostracods by examining the historical Micheli-Targioni Tozzetti's collection housed at La Specola Museum (University of Florence, Italy). Earlier records of ostracod reference, namely Niccolò Gualtieri's 1742 Index Testarum Conchyliorum, which includes the first scientific illustration and description of ostracods were identified. The analysis of the collection revealed the oldest known collection of Recent ostracod specimens in a museum repository, likely dating back to before 1737. Furthermore, Giovanni Targioni Tozzetti’s unpublished observations from the mid-18th century provide the earliest known ethological notes on ostracods. The presence of four distinct ostracod species in the collection, Herpetocypris reptans, Heterocypris incongruens, Heterocypris salina, and Cypridopsis vidua are confirmed. This research highlights the pivotal role of historical museum collections in reconstructing the early development of taxonomy, ethology, and the scientific concept of species.
{"title":"Tracing the taxonomic journey of ostracods (Crustacea): From Gualtieri to Latreille, through Micheli-Targioni Tozzetti's collection","authors":"Ilaria Mazzini , Simone Cianfanelli , Elisabetta Lori , Giampaolo Rossetti , Gianna Innocenti , Enrico Talenti","doi":"10.1016/j.revmic.2025.100867","DOIUrl":"10.1016/j.revmic.2025.100867","url":null,"abstract":"<div><div>This study retraces the early taxonomic history of ostracods by examining the historical Micheli-Targioni Tozzetti's collection housed at La Specola Museum (University of Florence, Italy). Earlier records of ostracod reference, namely Niccolò Gualtieri's 1742 <em>Index Testarum Conchyliorum</em>, which includes the first scientific illustration and description of ostracods were identified. The analysis of the collection revealed the oldest known collection of Recent ostracod specimens in a museum repository, likely dating back to before 1737. Furthermore, Giovanni Targioni Tozzetti’s unpublished observations from the mid-18th century provide the earliest known ethological notes on ostracods. The presence of four distinct ostracod species in the collection, <em>Herpetocypris reptans, Heterocypris incongruens, Heterocypris salina</em>, and <em>Cypridopsis vidua</em> are confirmed. This research highlights the pivotal role of historical museum collections in reconstructing the early development of taxonomy, ethology, and the scientific concept of species.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100867"},"PeriodicalIF":1.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145157856","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}
Pub Date : 2025-09-24DOI: 10.1016/j.revmic.2025.100869
Matthias Franz , Marie-Theres Kohl , Ulrike Wielandt-Schuster
The Micropalaeontology Collection of the State Office for Geology. Raw Materials and Mining, Baden-Württemberg in Freiburg (SW Germany) contains 5 939 microfossil slides. They were derived from Upper Triassic to Neogene deposits exposed in Baden-Württemberg. 1 165 reference specimens have been described in 19 publications ranging from 1951 to the present day. Details of the type specimens and their current classification are here presented.
国家地质办公室微体古生物馆藏。位于弗莱堡（德国西南部）的巴登-符腾堡（baden - w rttemberg）的原材料和采矿，包含5939个微化石玻片。它们来自于巴登- 符腾堡州的上三叠统至新近系矿床。从1951年至今，已有19种出版物描述了165种参考标本。这里介绍了模式标本的细节和它们目前的分类。
{"title":"The micropaleontology collection of the State Office for Geology. Raw materials and Mining, Baden-Württemberg, SW Germany","authors":"Matthias Franz , Marie-Theres Kohl , Ulrike Wielandt-Schuster","doi":"10.1016/j.revmic.2025.100869","DOIUrl":"10.1016/j.revmic.2025.100869","url":null,"abstract":"<div><div>The Micropalaeontology Collection of the State Office for Geology. Raw Materials and Mining, Baden-Württemberg in Freiburg (SW Germany) contains 5 939 microfossil slides. They were derived from Upper Triassic to Neogene deposits exposed in Baden-Württemberg. 1 165 reference specimens have been described in 19 publications ranging from 1951 to the present day. Details of the type specimens and their current classification are here presented.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100869"},"PeriodicalIF":1.0,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145157958","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}
Pub Date : 2025-09-19DOI: 10.1016/j.revmic.2025.100866
Abdelhakim BENKHEDDA , Francesco SCIUTO , Mostapha BENZINA , Abdelmalik DRAOUI , Hakim HEBIB
Ostracod species, some new, others little known, belonging to the family Trachyleberididae are described, figured and commented in this paper. The specimens come from Tortonian sediments outcropping along a stratigraphic section located in the Tafna Basin (NW Algeria).
{"title":"Some Tortonian ostracods from the Oued Bir Moka section (Tafna Basin, NW Algeria)","authors":"Abdelhakim BENKHEDDA , Francesco SCIUTO , Mostapha BENZINA , Abdelmalik DRAOUI , Hakim HEBIB","doi":"10.1016/j.revmic.2025.100866","DOIUrl":"10.1016/j.revmic.2025.100866","url":null,"abstract":"<div><div>Ostracod species, some new, others little known, belonging to the family Trachyleberididae are described, figured and commented in this paper. The specimens come from Tortonian sediments outcropping along a stratigraphic section located in the Tafna Basin (NW Algeria).</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100866"},"PeriodicalIF":1.0,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105537","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}
Pub Date : 2025-09-19DOI: 10.1016/j.revmic.2025.100868
Baptiste Suchéras-Marx
Micropaleontology, a naturalist discipline relying heavily on observation and description, faces significant teaching challenges due to limited access to equipment resources, samples, and expertise. To address these constraints, we developed a free online undergraduate course in micropaleontology centered on a pedagogical collection of 136 numerically reconstructed 3D microfossils. The 3D models, acquired mainly via X-ray microcomputed tomography and other advanced imaging techniques, represent diverse taxonomic groups such as foraminifera, ostracods, coccolithophores, diatoms, and pollen. Hosted on the Sketchfab platform and integrated within the Moodle-based Unisciel learning management system, the course is structured into taxonomical chapters featuring learning texts, observation activities with annotated 3D models, and evaluation quizzes. Despite limitations including the absence of scale bars on embedded models and the relatively low diversity due to scanning costs and technical challenges, the course offers an innovative pedagogical approach combining remote access to interactive 3D microfossils with structured learning and continuous assessment. This resource aims to improve micropaleontology education by facilitating detailed morphological observation and taxonomic identification remotely, overcoming common barriers in traditional teaching settings. Preliminary feedback highlights the potential for blended learning adaptation and underscores the need for ongoing evaluation to optimize educational outcomes. The course and 3D collection serve as a foundation for further development of digital micropaleontology tools, promoting wider accessibility and fostering enhanced scientific training in Earth and Life Sciences.
{"title":"A 3D microfossil collection and its use in a remote micropaleontology practical work course","authors":"Baptiste Suchéras-Marx","doi":"10.1016/j.revmic.2025.100868","DOIUrl":"10.1016/j.revmic.2025.100868","url":null,"abstract":"<div><div>Micropaleontology, a naturalist discipline relying heavily on observation and description, faces significant teaching challenges due to limited access to equipment resources, samples, and expertise. To address these constraints, we developed a free online undergraduate course in micropaleontology centered on a pedagogical collection of 136 numerically reconstructed 3D microfossils. The 3D models, acquired mainly via X-ray microcomputed tomography and other advanced imaging techniques, represent diverse taxonomic groups such as foraminifera, ostracods, coccolithophores, diatoms, and pollen. Hosted on the Sketchfab platform and integrated within the Moodle-based Unisciel learning management system, the course is structured into taxonomical chapters featuring learning texts, observation activities with annotated 3D models, and evaluation quizzes. Despite limitations including the absence of scale bars on embedded models and the relatively low diversity due to scanning costs and technical challenges, the course offers an innovative pedagogical approach combining remote access to interactive 3D microfossils with structured learning and continuous assessment. This resource aims to improve micropaleontology education by facilitating detailed morphological observation and taxonomic identification remotely, overcoming common barriers in traditional teaching settings. Preliminary feedback highlights the potential for blended learning adaptation and underscores the need for ongoing evaluation to optimize educational outcomes. The course and 3D collection serve as a foundation for further development of digital micropaleontology tools, promoting wider accessibility and fostering enhanced scientific training in Earth and Life Sciences.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100868"},"PeriodicalIF":1.0,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105539","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}
Pub Date : 2025-09-19DOI: 10.1016/j.revmic.2025.100865
Cristianini Trescastro Bergue , Maria Naumcheva , Rafael Costa da Silva , Marie-Béatrice Forel , Fernando Antonio Sedor
The study on Paleozoic podocopid ostracods in Brazil still lags behind the Mesozoic (mainly Cretaceous) and Cenozoic ones, and is mostly concentrated in the Paraná Basin. Consequently, we have only vague information about their diversity, distribution, and affinities to the North Hemisphere assemblages. In order to contribute to the improvement of this knowledge, this work presents a study on Late Permian Darwinulocopina from the Rio do Rasto Formation, Paraná Basin, Brazil. The vertebrate fauna associated indicates a Lopingian age for these deposits which are interpreted as a delta front to delta top environment. Nine species of darwinulocopines were recorded in the studied sample, some of them very abundant, while others very rare and represented only by a few specimens. The superfamily Darwinuloidea is represented by the genera Paleodarwinula Molostovskaya and Wjatkellina Molostovskaya, and the Suchonelloidea is represented by the genera Dvinella Molostovskaya and Prasuchonella Molostovskaya. Two new species are described: Paleodarwinula moliyae nov. sp. and P. gregorysohni nov. sp. Additionally, the occurrence of two species previously described from the Eastern European Platform (Wjatkellina fragiloides Zekina and Prasuchonella sulacensis Starozhilova) and one described in North America (Paleodarwinula hollandi [Scott]) demonstrate possible biostratigraphic and paleoenvironmental comparisons between the Paraná Basin and Russian Platform Assemblages, as well as North American ones.
{"title":"Late Permian darwinulocopines (Crustacea: Ostracoda) from the Rio do Rasto Formation, Brazil","authors":"Cristianini Trescastro Bergue , Maria Naumcheva , Rafael Costa da Silva , Marie-Béatrice Forel , Fernando Antonio Sedor","doi":"10.1016/j.revmic.2025.100865","DOIUrl":"10.1016/j.revmic.2025.100865","url":null,"abstract":"<div><div>The study on Paleozoic podocopid ostracods in Brazil still lags behind the Mesozoic (mainly Cretaceous) and Cenozoic ones, and is mostly concentrated in the Paraná Basin. Consequently, we have only vague information about their diversity, distribution, and affinities to the North Hemisphere assemblages. In order to contribute to the improvement of this knowledge, this work presents a study on Late Permian Darwinulocopina from the Rio do Rasto Formation, Paraná Basin, Brazil. The vertebrate fauna associated indicates a Lopingian age for these deposits which are interpreted as a delta front to delta top environment. Nine species of darwinulocopines were recorded in the studied sample, some of them very abundant, while others very rare and represented only by a few specimens. The superfamily Darwinuloidea is represented by the genera <em>Paleodarwinula</em> Molostovskaya and <em>Wjatkellina</em> Molostovskaya, and the Suchonelloidea is represented by the genera <em>Dvinella</em> Molostovskaya and <em>Prasuchonella</em> Molostovskaya. Two new species are described: <em>Paleodarwinula moliyae</em> nov. sp. and <em>P. gregorysohni</em> nov. sp. Additionally, the occurrence of two species previously described from the Eastern European Platform (<em>Wjatkellina fragiloides</em> Zekina and <em>Prasuchonella sulacensis</em> Starozhilova) and one described in North America (<em>Paleodarwinula hollandi</em> [Scott]) demonstrate possible biostratigraphic and paleoenvironmental comparisons between the Paraná Basin and Russian Platform Assemblages, as well as North American ones.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100865"},"PeriodicalIF":1.0,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105538","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}
Pub Date : 2025-09-04DOI: 10.1016/j.revmic.2025.100864
Jonathan R. Bryan , Roger W. Portell
The Micropaleontology Collection at the Florida Museum of Natural History is part of the larger Division of Invertebrate Paleontology. It has extensive holdings in Cenozoic foraminifera from the Gulf of Mexico Coastal Plain, including larger benthic species. Recent acquisitions from the Florida Geological Survey and independent researchers have rapidly increased the size and scope of the collection. It is expected that the continued assimilation of historic and private microfossil collections will further increase the value and research potential of this important archive of past biodiversity.
{"title":"Micropaleontology at the Florida Museum of Natural History, University of Florida","authors":"Jonathan R. Bryan , Roger W. Portell","doi":"10.1016/j.revmic.2025.100864","DOIUrl":"10.1016/j.revmic.2025.100864","url":null,"abstract":"<div><div>The Micropaleontology Collection at the Florida Museum of Natural History is part of the larger Division of Invertebrate Paleontology. It has extensive holdings in Cenozoic foraminifera from the Gulf of Mexico Coastal Plain, including larger benthic species. Recent acquisitions from the Florida Geological Survey and independent researchers have rapidly increased the size and scope of the collection. It is expected that the continued assimilation of historic and private microfossil collections will further increase the value and research potential of this important archive of past biodiversity.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100864"},"PeriodicalIF":1.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988274","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}
The agglutinated foraminifer Tekkeina anatoliensis Farinacci & Yeniay (Santonian of Turkey) is here reported for the first time from the Ilam Formation of west-southwestern Iran. The genus Tekkeina is emended to include a facultative uncoiling and branching adult test part. Test sizes of > 5.0 mm for the uncoiling specimens, although displaying a simple internal structure, means that T. anatoliensis, can be considered a larger benthic foraminifer. The previous suprageneric classification within the Schlumbergerinidae Mikhalevich & Kaminski of the subclass Tubothalamana is rejected. Displaying striking similarities to Navarella Ciry & Rat (Maastrichtian of Spain), and Neonavarella Giusberti et al. (Thanetian of Italy), Tekkeina is placed into the same family, the Ammobaculinidae Saidova of the subclass Globothalamana, re-instating the original taxonomic assignment. The three genera display a convergent evolution within similar palaeoenvironments and facies as autochthonous elements in limestones with planktonic foraminifera and calcisphaerulids in hemipelagic to bathyal environments. The Santonian age of the Iranian specimens confirms its biostratigraphic utility. It is the first record from the Middle East area, namely the Arabian Plate.
本文首次报道了在伊朗西南西部Ilam组发现的凝集有孔虫Tekkeina anatoliensis Farinacci & &； Yeniay（土耳其圣东统）。该属被修订，以包括一个兼性展开和分支成人测试部分。展开标本的测试尺寸为5.0 mm，虽然显示出简单的内部结构，但这意味着T. anatoliensis可以被认为是一种更大的底栖有孔虫。先前在Schlumbergerinidae中Mikhalevich & Kaminski对Tubothalamana亚纲的超属分类被拒绝。Tekkeina与Navarella city & &； Rat（西班牙的Maastrichtian）和Neonavarella Giusberti et al.（意大利的Thanetian）有着惊人的相似之处，被归入同一科，即Globothalamana亚纲的ammobaculindae Saidova，重新恢复了最初的分类分配。这三个属在相似的古环境和相中表现出趋同的演化，在半深海到深海环境中与浮游有孔虫和钙质生物同为原生元素。伊朗标本的圣安东尼奥时代证实了它在生物地层学上的实用性。这是来自中东地区，即阿拉伯板块的第一个记录。
{"title":"Tekkeina anatoliensis Farinacci & Yeniay, 1995 hemipelagic larger benthic foraminifer from the Santonian Ilam Formation of west-southwestern Iran: emendation of the genus and suprageneric status","authors":"Felix Schlagintweit , Reza Behbahani , Yadolah Ezampanah , Hassan Mohseni","doi":"10.1016/j.revmic.2025.100863","DOIUrl":"10.1016/j.revmic.2025.100863","url":null,"abstract":"<div><div>The agglutinated foraminifer <em>Tekkeina anatoliensis</em> Farinacci & Yeniay (Santonian of Turkey) is here reported for the first time from the Ilam Formation of west-southwestern Iran. The genus <em>Tekkeina</em> is emended to include a facultative uncoiling and branching adult test part. Test sizes of > 5.0 mm for the uncoiling specimens, although displaying a simple internal structure, means that <em>T. anatoliensis</em>, can be considered a larger benthic foraminifer. The previous suprageneric classification within the Schlumbergerinidae Mikhalevich & Kaminski of the subclass Tubothalamana is rejected. Displaying striking similarities to <em>Navarella</em> Ciry & Rat (Maastrichtian of Spain), and <em>Neonavarella</em> Giusberti et al. (Thanetian of Italy), <em>Tekkeina</em> is placed into the same family, the Ammobaculinidae Saidova of the subclass Globothalamana, re-instating the original taxonomic assignment. The three genera display a convergent evolution within similar palaeoenvironments and facies as autochthonous elements in limestones with planktonic foraminifera and calcisphaerulids in hemipelagic to bathyal environments. The Santonian age of the Iranian specimens confirms its biostratigraphic utility. It is the first record from the Middle East area, namely the Arabian Plate.</div></div>","PeriodicalId":45442,"journal":{"name":"REVUE DE MICROPALEONTOLOGIE","volume":"89 ","pages":"Article 100863"},"PeriodicalIF":1.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893262","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}
Pub Date : 2025-08-19DOI: 10.1016/j.revmic.2025.100860
Olugbenga T. Fajemila , Michael Martínez-Colón , Jerry O. Olajide-Kayode , Moshood A. Olayiwola
Maritime, industrial, urban expansion, and touristic activities have been on the rise in Hong Kong, China. These impact the fringing coral ecosystems with nutrient-rich sewages, industrial effluents and surface run-offs through network of rivers and canals. The FORAM Index (FI), is a single metric index that evaluates the health status of reef environments by combining the abundance ratios of the heterotrophic, opportunistic, and symbiont-bearing taxa in a specialized relationship. Four regions of Hong Kong were investigated— Northeastern Sai Kung, East Sai Kung, Lantau and Southern Hong Kong. A total of 61 genera of habitat specific benthic foraminifera were identified. The stress-tolerant heterotrophs were abundant at all stations. The symbiont-bearing taxa, dominated by Amphistegina which share similar ecosystem functions with the corals, are abundant at few sites in East Sai Kung and Northeastern Sai Kung regions. The opportunistic taxa, strongly represented by Elphidium and Ammonia, were recorded at all sites. East Sai Kung region has two stations with FI > 4, meaning that the environment can support coral vitality, while the rest are intermediate (2 ≤ FI< 4). In Northeastern Sai Kung, only two stations have FI < 2. while the remaining three stations are intermediate. All Lantau stations are below FI = 2, and cannot support coral recovery. Majority of the Southern Hong Kong sample stations are below FI = 2. The FI has shown that all the sites are at different stages of impacts and the majority may not be suitable for coral recovery and growth. Therefore, continuous assessment and monitoring are required to keep the ecosystem functioning.
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