Results 241 to 250 of about 14,488 (288)
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Pyritization in living foraminifers
The Journal of Foraminiferal Research, 1973Pyrite found in tests of living specimens (formed by bacteria in test), may indicate disease or a relationship between foraminifera and bacteria, specimens from Puerto ...
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Evolution of early planktic foraminifers
Marine Micropaleontology, 1983Abstract The evolution of Mesozoic species of planktic foraminifers, particularly the succession of their morphotypes and the variation in their diversity and their abundance, is shown to be related to the adaptation of evolutionary strategy to fluctuations in the oceanic environment. During periods of stress (“oligotaxic period”) the more primitive
Michèle Caron, Peter Homewood
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Proceedings of the Geologists' Association, 1949
Summary Unlike other free-living foraminifera some specimens of Flabellina cf angulosa d'Orbigny from various zones of the Upper Chalk show a strong tendency to have adherent end chambers. This together with a change of ornament from smooth to a pustulose shell seems to be unique amongst foraminifera.
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Summary Unlike other free-living foraminifera some specimens of Flabellina cf angulosa d'Orbigny from various zones of the Upper Chalk show a strong tendency to have adherent end chambers. This together with a change of ornament from smooth to a pustulose shell seems to be unique amongst foraminifera.
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Living Foraminifers of Lagoons and Estuaries
Micropaleontology, 1968Specific composition, numerical abundances, size relationships, biomass and diversity relationships, application to paleoecologic ...
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The accuracy of δ11B measurements of foraminifers
Chemical Geology, 2010Abstract Values of δ11B reported in the literature for Holocene samples of the same foraminiferal species show large variability (6‰) relative to cited precision (
Ni, Y., Foster, G.L., Elliott, TR
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Why are Foraminiferida Foraminifers ?
1990Fossil benthic and planktonic foraminifers play a major role in paleontology, first of all as a stratigraphic tool, but also in paleoecology, paleoclimatology, paleoceanography and paleobiogeography. Recent foraminifers are abundant and diverse in nearly all modern marine ecosystems, and although little is known about their life as organisms, they are ...
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Threshold characters in a Cretaceous foraminifer
Palaeogeography, Palaeoclimatology, Palaeoecology, 1982Abstract A threshold character is one for which the phenotypic values are discontinuous but the mode of inheritance is like that of a continuously varying character. The appearance of such characters may be connected with an environmental stimulus. The Cretaceous bolivinidAfrobolivina afra produced three ornamental variants which appear to represent ...
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The foraminifer genera Monotaxinoides and Eolasiodiscus
International Geology Review, 1965The genera Monotaxinoides Brazhnikova and Yartseva and Eolasiodiscus Reytlinger were both established at the same time for small Late Carboniferous Foraminifera probably derived from the genus Howc...
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2019
In this study microsferic and macrosferic individuals of Amphicoryna scalaris (Batsch) collected from 40 stations located between the Gulf of Saros and Marmaris Bay in the Eastern Aegean Sea. Some differences in the test development were observed. The purpose of this study is to prove that the presence of the microspheric individuals of the Amphicoryna
Meriç E., Avşar N., Bergin F.
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In this study microsferic and macrosferic individuals of Amphicoryna scalaris (Batsch) collected from 40 stations located between the Gulf of Saros and Marmaris Bay in the Eastern Aegean Sea. Some differences in the test development were observed. The purpose of this study is to prove that the presence of the microspheric individuals of the Amphicoryna
Meriç E., Avşar N., Bergin F.
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