Results 131 to 140 of about 1,867 (183)
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The mid-Cenomanian Event: prelude to OAE 2
Palaeogeography, Palaeoclimatology, Palaeoecology, 2003A detailed synthesis of litho- and biostratigraphic investigations of the Cenomanian pelagic limestones of the Scaglia Bianca Formation in the Umbria–Marche Basin shows that the Bonarelli Level, which is the regional sedimentary expression of the OAE 2, represents the climax of a ∼2 Myr-long cycle of black shale deposition that began in the mid ...
Rodolfo Coccioni
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Palaeogeography, Palaeoclimatology, Palaeoecology, 1974
Abstract A major micropalaeontological non-sequence in the British Cenomanian correlates with similar features elsewhere in Europe and in North America. Comparison of these results with deep-sea sedimentary cores in the North Atlantic and Pacific indicates that this non-sequence sequence is widespread and probably indicates a major eustatic episode ...
M.B. Hart, D.H. Tarling
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Abstract A major micropalaeontological non-sequence in the British Cenomanian correlates with similar features elsewhere in Europe and in North America. Comparison of these results with deep-sea sedimentary cores in the North Atlantic and Pacific indicates that this non-sequence sequence is widespread and probably indicates a major eustatic episode ...
M.B. Hart, D.H. Tarling
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Cenomanian florule of Nammoura, Lebanon
Cretaceous Research, 2000The mid-Cenomanian fish beds of Nammoura, Mont-Liban district, Lebanon contain a diverse fauna of aquatic and terrestrial vertebrates, a few crustaceans and moderately well-preserved plant remains of which a single species,Sapindopsis anhouryi , was previously described by Dilcher & Basson (1990). We add 11 species of ferns, gymnosperms and angiosperms
Valentin Krassilov, Flavio Bacchia
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A mosasaur from the Cenomanian of Russia
Paleontological Journal, 2009The premaxilla of a mosasauroid lizard from the Lysaya Gora 3 locality in Saratov (Upper Cretaceous, Cenomanian) is described. To date, the oldest known mosasaur remains have been dated Turonian. The premaxilla is most similar in morphology to that of Russellosaurus from the Turonian of the United States; however, the absence of sufficient diagnostic ...
D. V. Grigor’ev +4 more
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Stratigraphy and Geological Correlation, 2006
Changes in morphological diversity and taxonomic composition of late Albian-early Turonian foraminiferal and radiolarian assemblages from the northern Peri-Tethys are considered. Several stages are defined in evolution of planktonic foraminifers: polytaxic (Albian-Cenomanian), oligotaxic (Cenomanian-Turonian boundary period), and polytaxic (Turonian ...
V. S. Vishnevskaya +3 more
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Changes in morphological diversity and taxonomic composition of late Albian-early Turonian foraminiferal and radiolarian assemblages from the northern Peri-Tethys are considered. Several stages are defined in evolution of planktonic foraminifers: polytaxic (Albian-Cenomanian), oligotaxic (Cenomanian-Turonian boundary period), and polytaxic (Turonian ...
V. S. Vishnevskaya +3 more
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Geological Magazine, 1902
That the Upper Cretaceous deposits overlap those of the Lower Cretaceous series, and extend over much larger areas throughout the whole of western and central Europe, are facts which have long been familiar to all European geologists. There has, however, been a tendency, especially in France, to imagine that the subsidence to which the overlap is due ...
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That the Upper Cretaceous deposits overlap those of the Lower Cretaceous series, and extend over much larger areas throughout the whole of western and central Europe, are facts which have long been familiar to all European geologists. There has, however, been a tendency, especially in France, to imagine that the subsidence to which the overlap is due ...
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Cretaceous Research, 1993
Abstract In the central Iberian Ranges the Cenomanian-Turonian boundary is located within a 3rd-order depositional sequence. Sedimentation began following an Atlantic transgression which flooded the Iberian plate from its northern margin. Facies are deepest, mainly hemipelagic, in the north (marls and nodular limestones with ammonites, echinids and ...
M. Segura +3 more
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Abstract In the central Iberian Ranges the Cenomanian-Turonian boundary is located within a 3rd-order depositional sequence. Sedimentation began following an Atlantic transgression which flooded the Iberian plate from its northern margin. Facies are deepest, mainly hemipelagic, in the north (marls and nodular limestones with ammonites, echinids and ...
M. Segura +3 more
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The Cenomanian deposits of south-east Devonshire
Proceedings of the Geologists' Association, 1961Abstract The distribution, lithology and regional variations in the thickness of the Cenomanian deposits in south-east Devon are summarised. Three distinctive facies are recognised, viz. (i) the Lower Chalk facies, (ii) the Cenomanian Limestone facies, and (iii) the calcareous sand or Wilmington facies. A detailed description is given of the lateral
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Ontogeny and phylogeny of Upper Cenomanian rotaliporids (Foraminifera)
Marine Micropaleontology, 2008The fossil record of planktonic foraminifera is a key source of data on the evolution of marine plankton. One of the most distinctive groups of Cretaceous foraminifera, the rotaliporids, widely used as a stratigraphic index, has always been considered to be a monophyletic clade. New data on the coiling direction and persistent morphological features of
Desmares, Delphine +2 more
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A Milankovitch scale for Cenomanian time
Terra Nova, 1989ABSTRACTA detailed cyclostratigraphy is present in the rhythmically bedded Cenomanian hemipelagic chalks of the northern Anglo‐Paris Basin, which can be correlated over 100,000 km2. Individual decimetre‐scale couplets probably represent the precession cycle (modes at 18 or 23 kyr), and can be readily grouped in sets averaging five, indicative of the ...
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