Academic literature on the topic 'Miliolida'

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Journal articles on the topic "Miliolida"

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Capotondi, Lucilla, Michael A. Kaminski, and Nicoletta Mancin. "The test wall of ?Nubeculina Cushman 1924 (Miliolida): updates on its agglutinated-porcelaneous wall structure from entire and sectioned specimens." Micropaleontology 68, no. 6 (2022): 557–67. http://dx.doi.org/10.47894/mpal.68.6.02.

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There is a growing number of new foraminifera with agglutinated wall types held together by secreted crystallites of high-magnesium calcite that do not fit within the traditional definition of the Miliolida. In this study, we analyzed entire and sectioned foraminiferal specimens frommodern marine sediments collected off the Croatian coast (Adriatic Sea) using an Environmental Scanning Electron Microscope (ESEM) equipped with Energy-Dispersive x-ray-Spectroscopy (EDS). The investigated specimens resemble the miliolid genera Nubeculina Cushman 1924 and Falsonubeculina Amao and Kaminski 2019, but display characteristics of testmorphology and an agglutinated-porcelaneous wall structure that have not been previously observed in similar miliolids. Their wall structure is more like that observed in primitive agglutinated foraminifera such as Lagenammina rather than in true miliolids. New taxonomical inferences regarding the nubeculinid group of genera are discussed.
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Billups, Katharina, Patrícia Pinheiro Beck Eichler, Christina Ravelo, Luzia Liniane do Nascimento, Helenice Vital, and Moab Praxedes Gomes. "Stable Isotopic Variability in Individual Benthic Foraminifera from the Continental Shelf of Tropical Brazil." Journal of Foraminiferal Research 52, no. 4 (2022): 212–28. http://dx.doi.org/10.2113/gsjfr.52.4.212.

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ABSTRACT We analyzed nine benthic foraminiferal species from the Açu Reef belonging to the orders Rotaliida and Miliolida, symbiont-bearing (Rotaliida: Amphistegina gibbosa, Heterostegina depressa; Miliolida: Peneroplis carinatus, Archaias angulatus, Amphisorus hemprichii, and Archaias compressus) and symbiont-barren (Rotaliida: Buccella peruviana, Pseudononion atlanticum; Miliolida: Quinqueloculina lamarckiana). Stable isotopes measured on individual tests display a large intraspecific variability (δ18O: ∼1–1.5‰; δ13C: ∼2–3.5‰) that is not associated with site location, sampling season, or water depth. Positive correlation between δ13C and δ18O values is significant in three of the species (A. gibbosa, B. peruviana, and Q. lamarckiana), with a regression slope similar to other marine calcifiers (∼2‰ δ13C/‰ δ18O), perhaps related to the carbonate chemistry of the calcifying fluid. With the exception of A. gibbosa, offsets from δ18O equilibrium, when distinct, tend to be positive. Offsets from δ13C of ΣCO2 of sea water are negative for two of the rotaliids (A. gibbosa and H. depressa) and positive for three of the miliolids (P. carinatus, A. angulatus, A. hemprichii), with non-symbiont-bearing species of both orders being close to the sea water values (∼ 1.3–2‰). These δ13C differences are consistent with calcification pathways of rotaliids versus miliolids, with the former drawing carbon from an internal pool and the latter from ambient seawater. Our study contributes a large data set that illustrates the importance of vital and abiotic effects on the stable isotopic composition of large benthic foraminifera in a tropical continental shelf, limiting their applicability as paleoenvironmental tracers.
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Михалевич, В. И. "Наблюдения за представителями отряда Miliolida (Miliolata, Foraminifera) в лабораторных условиях. 2.Miliolinasp." Зоологический журнал 95, № 8 (2016): 897–904. http://dx.doi.org/10.7868/s0044513416080109.

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Михалевич, В. И. "Наблюдения за представителями отряда Miliolida (Miliolata, Foraminifera) в лабораторных условиях. 1. ВидMassilina secans(d’orbigny) 1826". Зоологический журнал 95, № 7 (2016): 769–78. http://dx.doi.org/10.7868/s0044513416070072.

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Amao, Abduljamiu O., and Michael A. Kaminski. "Pseudonubeculina arabica n. gen. n. sp., a new Holocene benthic foraminifera from the Arabian Gulf." Micropaleontology 62, no. 1 (2016): 81–86. http://dx.doi.org/10.47894/mpal.62.1.03.

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This paper describes an enigmatic new agglutinated benthic foraminiferal genus and species that shares some morphological features with the Reophax, Hormosina and Nubeculina groups. Pseudonubeculina arabica n.gen. n.sp. is characterized by its uniserial chamber arrangement, coarsely agglutinated bilamellar test wall with white high-Mg calcite cement, and a terminal slit-like aperture formed by the flat sides of two or more large agglutinated grains. The new genus cannot be placed within any of the previously described families of the Miliolida. The current classification of the Miliolida does not accommodate a genus with a wholly uniserial chamber arrangement. This species can easily be distinguished by its prominent terminal slit-like aperture, formed using the flat sides of two or more large agglutinated grains, lined by an imperforate rim of secreted calcite. The species has a restricted area and depth distribution in the Arabian Gulf.
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Zamora-Duran, M. Angelica, Richard B. Aronson, James J. Leichter, Jennifer A. Flannery, Julie N. Richey, and Lauren T. Toth. "Imprint of Regional Oceanography on Foraminifera of Eastern Pacific Coral Reefs." Journal of Foraminiferal Research 50, no. 3 (2020): 279–90. http://dx.doi.org/10.2113/gsjfr.50.3.279.

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ABSTRACT The marginal marine environments of the eastern tropical Pacific (ETP) serve as an ideal natural laboratory to study how oceanographic and climatic variability influence coral-reef ecosystems. Reefs along the Pacific coast of Panamá span a natural gradient of nutrients, pH, and temperature as a result of stronger seasonal upwelling in the Gulf of Panamá relative to the Gulf of Chiriquí. The ecosystems are not only influenced by spatial and seasonal variations in oceanography but are affected by the climatic variability of the El Niño-Southern Oscillation (ENSO). Foraminifera can be robust indicators of ecosystem condition because the composition of their assemblages and the geochemistry of their tests can change rapidly in response to environmental variability. We studied benthic foraminifera in sediment samples collected from 3 m below mean sea level in the Gulf of Panamá and the Gulf of Chiriquí. Temperature loggers deployed from 2016 to 2019 showed that average temperatures were lower and more variable in the Gulf of Panamá due to seasonal upwelling. All sites in both gulfs were dominated by heterotrophic foraminifera, which was likely the result of nutrient enrichment due to upwelling, combined with ENSO effects. However, the Gulf of Chiriquí was characterized by higher abundances of symbiont-bearing foraminifera than the Gulf of Panamá. The orders Miliolida and Rotaliida dominated the foraminiferal assemblages in both gulfs, with Quinqueloculina and Rosalina being the most abundant genera in the two orders, respectively. Miliolids were less abundant in the Gulf of Panamá than in the Gulf of Chiriquí, whereas rotaliid densities were not significantly different between the two gulfs. Lower pH in the Gulf of Panamá as a result of upwelling may have contributed to the lower abundance of miliolids, which secrete tests of high-magnesium calcite. Geochemical analysis of tests of the symbiont-bearing miliolid Sorites marginalis revealed that foraminiferal Mg/Ca ratios were lower in the Gulf of Panamá than in the Gulf of Chiriquí. The offset in foraminiferal Mg/Ca is consistent with the lower mean annual temperature observed in the Gulf of Panamá due to stronger seasonal upwelling. Because the geochemistry and assemblages of foraminifera reflect differences in environmental conditions, they could potentially be used in tandem with coral proxies to reconstruct past environmental change and project the future of coral-reef systems within the ETP.
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Garrison, Thomas F. "The microscopic mineral collector of the sea: Agglutinella kaminskii n. sp., a new benthic foraminifer from the Arabian Gulf." Micropaleontology 65, no. 4 (2019): 277–83. http://dx.doi.org/10.47894/mpal.65.4.01.

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The new species Agglutinella kaminskii n. sp. (Miliolida: Siphonapertinae) is described from nearshore marine localities in eastern Bahrain. The species is characterized by its simple tooth and tendency for selectively incorporating colorful siliciclastic mineral grains of eolian origin into its test wall. The new species appears to be endemic to the Arabian Gulf.
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Lyu, Man, Yanli Lei, and Tiegang Li. "Comparison of Different Dna Preservation Methods On Quinqueloculina Spp. (foraminifera, Miliolida)." Journal of Foraminiferal Research 48, no. 3 (2018): 186–92. http://dx.doi.org/10.2113/gsjfr.48.3.186.

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Abstract We carried out a series of experiments to evaluate the efficiency of preserving DNA from porcelaneous foraminifera (Quinqueloculina spp.) and a second set to assess the effect of Rose Bengal staining on molecular processing. The first experimental setup assessed three methods of DNA preservation (air-drying, freezing with or without seawater, and Guanidine lysis buffer treatment with or without EDTA (Ethylenediaminetetraacetic acid)). Our study produced the following results: 1) there were no significant differences in DNA preservation when samples were air dried across a range of temperatures (20–120°C); samples frozen at −20°C appeared better preserved than at those frozen at –80°C, and freezing without seawater appeared to produce better preservation than with seawater, though differences in freezing treatments were not significant (p > 0.05); samples in Guanidine lysis buffer with EDTA and stored at –20°C were well preserved (p < 0.05); 2) sometimes, DNA was successfully extracted from samples stained with Rose Bengal. We recommend Guanidine lysis buffer with EDTA, stored at –20°C for up to six weeks, as the best protocol for preservation of DNA from porcelaneous foraminifera.
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Carvajal-Chitty, Humberto, and Sandra Navarro. "Preliminary foraminiferal survey in Chichiriviche de La Costa, Vargas, Venezuela." Revista Brasileira de Paleontologia 24, no. 2 (2021): 90–103. http://dx.doi.org/10.4072/rbp.2021.2.02.

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A preliminary study of the composition and community structure of the foraminifera of Chichiriviche de La Costa (Vargas, Venezuela) is presented. A total of 105 species were found in samples from 10 to 40 meter-depth, and their abundance quantified in a carbonate prone area almost pristine in environmental conditions. The general composition varies in all the samples: at 10 m, Miliolida dominates the assemblages but, as it gets deeper, Rotaliida takes control of the general composition. The Shannon Wiener diversity index follows species richness along the depth profile, meanwhile the FORAM index has a higher value at 20 m and its lowest at 40 m. Variations in the P/(P+B) ratio and high number of rare species are documented and a correspondence multivariate analysis was performed in order to visualize the general community structure. These results could set some basic information that will be useful for management programs associated with the coral reef in Chichiriviche de La Costa, which is the principal focus for diver’s schools and tourism and could help the local communities to a better understanding of their ecosystem values at this location at Vargas State, Venezuela. Keywords: Miliolida, Rotaliida, foraminiferal assemblages, FORAM index, Caribbean continental shelf.
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Mikhalevich, Valeria I. "Comparison between the test and wall structure of the Miliolata and Fusulinoida (Foraminifera), based on new data from Antarctic miliolids." Micropaleontology 55, no. 1 (2009): 1–21. http://dx.doi.org/10.47894/mpal.55.1.01.

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The morphological similarities of the outer and inner test structure of primitive and advanced Fusulinoida (Tournayellida, Endothyrida, Fusulinida) and primitive and advanced Miliolata (Baisalinidae, Ophthalmidiidae, Miliolidae, Alveolinina, Soritinida) have been traditionally viewed as a result of convergent evolution.Adetailed comparison of the test and apertural shape, of the inner supplementary deposits of the test material (mounds, nodes, spine like projections, nodosities and teeth and flaps in the thin sections) of the both taxonomic groups studied, as well as the comparison of the fusulinacean wall with newly discovered unique ultrastructural features of the porcelaneous wall of large Antarctic miliolids (along with the highmagnesium level in the both calcareous groups) lead us to an understanding of their close relationship. Both groups represent two smaller branches of one phylogenetic lineage and hence the similarity of the outer and inner structures of their shells could be considered as parallelism in the closely related groups.
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Dissertations / Theses on the topic "Miliolida"

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Grosheny, Danièle. "Paléoécologie et dynamique sédimentaire d'un modèle de banc à rudistes : exemple du Santonien de la Cadière (Sud-Est France)." Aix-Marseille 1, 1986. http://www.theses.fr/1986AIX11018.

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Ce memoire traite de la biosedimentologie de la formation de la cadiere, var. Cette formation peut etre subdivisee en cinq unites lithostratigraphiques constituees principalement de couches de calcaire a rudistes. Toutefois, on observe des variations laterales des facies dont les relations sont precisees et synthetisees grace a une analyse sequentielle. On montre que les sequences elementaires s'inscrivent dans une sequence de comblement. L'analyse des microfacies sur le plan sedimentologique et paleoecologique permet d'envisager la reconstitution des paleoenvironnements et de leur evolution. Les phenomenes de dissolution et de dolomitisation observes suggerent l'existence d'emersions temporaires. Enfin on presente une analyse systematique des miliolina dans laquelle de nouvelles especes sont decrites
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Alenezi, Saleh. "Micropalaeontology, palaeoenvironments and sequence stratigraphy of the Sulaiy Formation of eastern Saudi Arabia." Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/9330.

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The Sulaiy Formation, which is the oldest unit in the Lower Cretaceous succession, is conformably overlain by the Yamama Formation and it is a challenge to identify the precise age of the two formations using foraminifera and other microfossil assemblages. In the eastern side of Saudi Arabia, the Sulaiy Formation and the base of Yamama Formation are poorly studied. The main objectives of this study is to enhance the understanding of the Sulaiy Formation sequence stratigraphical correlation, regional lateral variations and palaeoenvironmental investigation. Lithological and semi-quantitative micropalaeontological analysis of 1277 thin sections taken from core samples from nine cored wells providing a geographically representative distribution from the Saudi Arabian Gulf. These cores intersected the base of the Yamama Formation and the Sulaiy Formation in the total thickness of cored wells of 843.23 meters (2766.5 feet). On the evidence provided by the foraminifera, the Sulaiy Formation is considered to represent the Berriasian to the lowermost Valanginian. The investigation of the micropalaeontology has provided considerable insights into the biocomponents of Sulaiy and the base of Yamama formations in order to identify their biofacies. These microfossils include rotalid foraminifera, miliolid foraminifera, agglutinated foraminifera, calcareous algae, calcispheres, stromatoporoids, sponge spicules, problematica (e.g. Lithocodium aggregatum), molluscs, corals, echinoderms and ostracods. Systematics of planktic and benthic foraminifera is accomplished using the foraminiferal classification by Loeblich and Tappan (1988) as the main source. The assemblage contains foraminifera that recorded for the first time in the Sulaiy Formation. Other microfossils were identified and recorded to help in the identification of the sedimentary environments. The investigation of the micropalaeontology and the lithofacies analysis have provided evidence the identification of the various lithofacies. About twenty four microfacies were identified on the basis of their bio−component and non-skeletal grains. The lithofacies and the bio−component results have provided the evidence of the sedimentary palaeoenvironmental model namely the Arabian Rimmed Carbonate Platform. This palaeoenvironmental depositional model is characterised by two different platform regimes. They are the Platform Interior and the Platform Exterior each of which have unique sedimentary lithofacies zones that produce different types of lithofacies. Each lithofacies is characterised by special depositional conditions and palaeobathymetry that interact with sea level changes and the accommodation space. The important palaeoenvironments are intertidal, restricted lagoon (subtidal), open marine, deeper open marine, inner shoal, shoal and platform margin. Generating, and testing, a depositional model as a part of formulating a sequence stratigraphical interpretation of a region is a key to understanding its geological development and – ultimately – reservoir potential. The micropalaeontology and sedimentology of the Sulaiy Formation in the subsurface have indicated a succession of clearly defined shallowing−upwards depositional cycles. These typically commence with a deep marine biofacies with wackestones and packstones, capped with a mudstone-wackestone maximum flooding zone and an upper unit of packstone to grainstones containing shallow marine biofacies. The upper part of the Sulaiy Formation is highstand-dominated with common grainstones that host the Lower Ratawi reservoir which is capped by karst that defines the sequence boundary. This karst is identified by its abundant moldic porosity that enhanced the the reservoir quality by increasing its porosities into greater values. Integration of the sedimentology and micropalaeontology has yielded a succession of shoaling−upwards depositional cycles, considered to be 4th order sequences, that are superimposed on a large scale 3rd order system tract shallowing−upwards, highstand-associated sequence of the Sulaiy Formation. The Lower Ratawi Reservoir is located within the latest high-stand portion of a third-order Sulaiy Formation sequence. The reservoir consists of a succession of several sequences, each of which is sub-divided into a lower transgressive systems tract separated from the upper highstand systems tract by a maximum flooding surface (MFS/Z). The last of these depositional cycles terminates in beds of porous and permeable ooid, or ooidal-peloidal, grainstone. The reservoir is sealed by the finer-grained sediments of the Yamama Formation.
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"Abordagem Ecossistêmica Para A Mineração Uma Perspectiva Comparativa Para Brasil E Canadá." Tese, Programa de Pós Graduação em Engenharia de Produção, 1999. http://www.eps.ufsc.br/teses99/milioli/index.html.

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Books on the topic "Miliolida"

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A, Antonova Z., Drushchit͡s︡ V. V, and Gorbachik T. N, eds. Triasovye i i͡u︡rskie miliolidy Severnogo Kavkaza. "Nauka", 1985.

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Book chapters on the topic "Miliolida"

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Lei, Yanli, and Tiegang Li. "Order Miliolida Delage et Hérouard, 1896." In Springer Geology. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-53878-4_3.

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"miliolite, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/7723942789.

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"miliolid, n. & adj." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/1158823372.

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"Miliola, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/1209573631.

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"milioline, adj. & n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/2828025361.

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Marathe, A. R., P. G. Deodhar, and S. N. Rajaguru. "Coastal miliolite formation and history of the early man in southern Saurashtra, Western India." In Quaternary Deserts and Climatic Change. CRC Press, 2020. http://dx.doi.org/10.1201/9781003077862-61.

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Wannier, Mario M. A. "Stratigraphy, Sedimentology, and Ecology of the Subis Limestone and the Late Oligocene/Early Miocene Carbonates in the Sarawak Basin (Borneo, Malaysia)." In Cenozoic Isolated Carbonate Platforms—Focus Southeast Asia. SEPM (Society for Sedimentary Geology), 2023. http://dx.doi.org/10.2110/sepmsp.114.02.

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Shallow marine mixed siliciclastic–carbonate shoals, a carbonate platform, and the subsequent development of a reefal buildup occur in sequence from the late Chattian to the Aquitanian in the Niah area of Sarawak. They document the transition from larger foraminifera-dominated, calcitic environments to scleractinian coral–dominated, aragonitic environments in SE Asia, which correspond to a significant increase in biodiversity. A late Chattian to early Aquitanian phase of carbonate sedimentation was initiated by larger foraminifera on shallow marine argillaceous shoals raising from the seabed at about 60 m in water depth occasionally up to near sea level. Carbonate production is almost entirely the result of the accumulation of larger foraminiferal shells dominated by Eulepidina dilatata, a species that could thrive thanks to its photosymbiosis with microalgae. Such mixed carbonate–clastic shoals formed repeatedly on a muddy shelf during a period stretching from about 23.5 Ma to 22.3 Ma. Following a period of siliciclastic deposition, a roughly circular carbonate platform with an area of some 25 km2 was formed at around 21.2 Ma in stratigraphic continuity with the underlying shallow marine sandstones of the Nyalau Formation. Known as the Subis Limestone, it consists at first of bedded carbonates characterized by the presence of red algae, a high diversity of free benthic and sessile endosymbiotic sessile foraminifera, and a variety of organisms typical for reefal environments, including colonial corals. A reefal buildup started forming on the carbonate platform as early as 21.1 Ma. This phase of growth was likely initiated by low-relief patch reefs, 150 to 200 m in diameter and 60 to 80 m in height, such as those exposed in a southern quarry. Analogous with same-age reefal development models from the Java Sea, it is proposed that the patch reefs coalesced through time to form a larger isolated carbonate buildup that grew up at least until the end of the Aquitanian at 20.4 Ma. This Subis buildup reached an area of 16 km2; it has a preserved thickness of 260 to 280 m and had a paleo-relief of about 100 m above the surrounding sea floor. It is asymmetrical, with a reef wall forming high, west-facing cliffs and another reef wall likely extending on the NE edge of the buildup, beyond the Niah Great Cave. A further increase in faunal and floral diversity occurred during this phase, concomitant with the diversification of ecological niches within the buildup. Reefal and peri-reefal environments are dominated by red algae; solitary and colonial corals (domal, branching, and platy), with subordinate foraminifera (large and small benthic); and associations of foraminifera and algae forming laminar foralgal binding tissues, sponges, hydrozoans, bryozoan, bivalves, echinoderms, and serpulids. The reef rim consists of coral framestone and algal-foraminiferal bindstone. The backreef facies is characterized by rudstones and floatstone with coral debris, and the lagoon facies includes microbial crusts, green algae, articulated and nonarticulated red algae, benthic foraminifera (Miliolids), ostracods, gastropods, and up to 4-m-high platy corals pillars. Forereef deposits include grain- and mud-supported reef debris; a debris apron present some 2.5 km away from the western edge of the buildup consists of debris flows and calciturbidites embedded in outer neritic shales. The upper part of the buildup is missing as a result of recent subaerial erosion. Three successive steps in the development of carbonate ecosystems are identified, which are linked to a series of innovative symbiotic relationships established during the late Chattian and the Aquitanian. During an early phase (23.5–22.3 Ma), monospecific populations of endosymbiotic larger benthic foraminifera thrived on shallow marine muddy shoals. At around 21.2 to 21.1 Ma, new species of endosymbiotic larger benthic foraminifera, sessile-encrusting foraminifera, and coralline algae colonized shallow marine grounds and created a carbonate platform. From about 21.1 to at least 20.4 Ma endosymbiotic scleractinian corals, red algae, and a diverse association of organisms created patch reefs and a buildup.
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Conference papers on the topic "Miliolida"

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Bubnova, M. V., I. I. Сhaikovskiy, and E. P. Chirkova. "POLYMINERAL NODULES FROM THE SALT-MARL SEQUENCE OF THE SOLIKAMSK DEPRESSION." In Проблемы минералогии, петрографии и металлогении. Научные чтения памяти П. Н. Чирвинского. ПЕРМСКИЙ ГОСУДАРСТВЕННЫЙ НАЦИОНАЛЬНЫЙ ИССЛЕДОВАТЕЛЬСКИЙ УНИВЕРСИТЕТ, 2022. http://dx.doi.org/10.17072/chirvinsky.2022.18.

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The mineral composition and structure of polymineral nodules, composed of chalcedony in the center, carbonates and sulfates along the periphery, are charac-terized. Their zoning, the presence of inclusions of miliolid shells, and the absence of encasing structures testify to their metasomatic nature. The evolutionary series of nodules (chalcedony - chalcedony-calcite - chalcedony-calcite-gypsum - chalcedo-ny-gypsum) has been reconstructed, reflecting the differentiation of substances ac-cording to their solubility. It has been suggested that the confinement of nodules to the upper part of the salt-marl strata reflects the change in the sedimentation basin of sulfate-calcium waters to bicarbonate-calcium and may mark the level of extinction of organisms that prefer high salinity
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