Chukhonastovka – the reference section of the Turonian-Lower Santonian from the Volga-Ilovlya interfluve (the Volga right bank area near Volgograd). Paper 2. Characteristics of the Oryctocomplexes [PDF]
Известия Саратовского университета. Новая серия: Серия Науки о ЗемлеA representative complex of the Turonian-Santonian carbonate-producing invertebrates has been revealed. It comprised benthic foraminifers, diverse echinoderms, brachiopods, calcareous and siliceous sponges.
Pervushov, Evgeniy Mikhaylovich +4 more
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Calcification acidifies the microenvironment of a benthic foraminifer (Ammonia sp.) [PDF]
Journal of Experimental Marine Biology and Ecology, 2012 Calcareous foraminifera are well known for their CaCO3 shells. Yet, CaCO3 precipitation acidifies the calcifying fluid. Calcification without pH regulation would therefore rapidly create a negative feedback for CaCO3 precipitation. In unicellular organisms, like foraminifera, an effective mechanism to counteract this acidification could be the ...
Martin S. Glas, Gerald Langer, Nina Keul
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Geologica Carpathica, 2015 Oligocene and Lower Miocene sediments of the Lučenec Depression were studied to demonstrate the planktonic bioevents and climatic proxies from the Číž Formation (Rupelian) and Lučenec Formation (Chattian-Aquitanian) on the basis of quantitative analyses ...
Ozdínová Silvia, Soták Ján
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Известия ТИНРО, 2014 Benthic foraminifers at methane seepages, independently of their taxa and microhabitat preferences, have lower value of d13С than those found in other sites, that’s why these species potentially could be used as bioindicators of methane emission. Species
Sergey P. Pletnev +3 more
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A note on the laboratory culture of the benthic foraminifer Cornuloculina balkwilli (MacFadyen) [PDF]
BMC Research Notes, 2013 Genetic studies of the Foraminifera provide valuable insights into marine speciation and biogeography, yet the discovery of vitally needed new genetic markers for this important group is being severely limited by an extreme lack of genetic data.
Seears, Heidi A., Wade, Christopher M.
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A new evidence of passing the Maastichtian–Paleocene boundary by larger benthic foraminifers: The case of Elazigina from the Maastrichtian Tarbur Formation of Iran [PDF]
Acta Palaeontologica Polonica, 2018 We describe a new Maastrichtian species of the benthic foraminifer Elazigina siderea from Tarbur Formation. Its main characters are the presence of heavy feathered umbilical sutures, a wide umbilical plug, and umbilical piles.
Lorenzo Consorti, Koorosh Rashidi
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Investigating crystal orientation patterns of foraminiferal tests by electron backscatter diffraction analysis [PDF]
European Journal of Mineralogy, 2020 We studied the crystallographic orientation of calcite crystals in benthic foraminifers by electron backscatter diffraction (EBSD). Individuals of two species, Gyroidinoides soldanii and Cibicidoides grimsdalei, featuring different test structures, were ...
S. Pabich +3 more
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Light Impacts Mg Incorporation in the Benthic Foraminifer Amphistegina lessonii [PDF]
Frontiers in Marine Science, 2019 The ratio of Mg to Ca in foraminiferal calcium carbonate (Mg/Cacc) is a popular tool to reconstruct past sea water temperatures. Its application is being complicated by other environmental factors affecting the Mg/Cacc, including salinity and the ratio between sea water [Mg2+] and [Ca2+]. Furthermore, there is considerable intra-specimen variability in
Linda K. Dämmer +3 more
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BSGF - Earth Sciences BulletinThis article is a reply to the comment by Hadi and Schlagintweit (2024, Acta Palaeontologica Romaniae 2: 17–2) on the article by Babazadeh and Cluzel (2023, Bulletin de la Société Géologique de France 194: 1–24) about the internal structure and ...
Babazadeh Seyed Ahmad, Cluzel Dominique
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Upper Barremian-Lower Aptian Urgonian limestone's in the Rakova bara section (Carpatho-balkanides, NE Serbia): Analysis and comparison with adjacent areas [PDF]
Glasnik Srpskog Geografskog Društva, 2010 The Upper Barremian-Lower Aptian succession is recorded from a limestone sequence that crops out in the surrounding of Rakova Bara in the Carpatho-Balkanides range in northeastern Serbia.
Carević Ivana +3 more
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