In: Newsletters on Stratigraphy, 2018, vol. 51, no. 3, p. 343–380
The upper Cenomanian – lower Turonian is a key-stratigraphic interval, as it encompasses the Late Cretaceous supergreenhouse and a major perturbation of the global carbon cycle (i. e., Oceanic Anoxic Event 2) as evidenced by a global positive carbon isotope excursion and by the nearly world-wide deposition of organic-rich marine facies. A turnover in planktonic foraminiferal assemblages and...
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In: Eclogae Geologicae Helvetiae, 2006, vol. 99, no. 3, p. 295-299
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In: Journal of Materials Research, 2008, vol. 23, no. 7, p. 1973-1979
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In: Parasitology, 1982, vol. 84, no. 1, p. 63-64
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In: Microscopy and Microanalysis, 2015, vol. 21, no. 4, p. 1006-1016
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In: Geological Magazine, 2015, vol. 152, no. 3, p. 521-536
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In: Geological Magazine, 2015, vol. 152, no. 3, p. 521-536
The planktonic foraminifera assemblage across the Global Boundary Stratotype Section and Point (GSSP) for the base of the Cenomanian Stage defined at Mont Risou (Haute-Alpes in France) is here restudied to clarify the identification and stratigraphic distribution of Thalmanninella globotruncanoides ( = Rotalipora globotruncanoides Sigal, 1948) and Pseudothalmanninella tehamaensis ( =...
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In: Cretaceous Research, 2010, vol. 31, no. 5, p. 500-514
Upper Cenomanian pelagic sediments from the northern Alpine Helvetic fold-and-thrust belt (northern Tethyan margin) coeval with Oceanic Anoxic Event (OAE) 2 are characterized by the temporal persistence of micrite sedimentation and lack of organic carbon-rich layers. We studied an expanded section in the Chrummflueschlucht (east of Euthal, Switzerland), which encompasses the OAE 2 time interval....
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In: Cretaceous Research, 2010, vol. 31, no. 1, p. 1-15
In central Tunisia, the thickness of the Bahloul Formation varies generally between 20 to 40 m such as for example, respectively, at wadi Smara near Kalaat Senan and at wadi Bahloul near Maktar. The thickness is also of several tens metres at Koudiat el Azreg near Jerissa and at Tajerouine. In these sites where the thickness of the Bahloul Formation is dilated, in addition to five geochemical...
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In: Revue de Paléobiologie, 2008, vol. 27, no. 1, p. 81-88
The planktonic foraminifera Rotalipora klausi Lehmann, 1966 and Globotruncana? semsalensis Corminboeuf, 1961, were figuredonly by drawings and the specimens were never made publicly available, although deposited in the collections of the Departmentof Geosciences, Fribourg, Switzerland. We present here for the first time their Scanning Electron Microscope documentation andcomparison with the...
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