Beihefte des Geologischen Jahrbuches Paleontologia Electronica, 4. Hohenegger, P. Hallock, W. Pil Molecular phylogeny of large miliolid foraminifera Soritacea Ehrenberg Marine Micropaleontol. Ciesielski, P. HUBE Huber et al. Atlas of Paleocene Planktonic Foraminifera. Ryan, W. Eocene through Pleistocene planktonic foraminifers off Peru, Leg biostratigraphy and paleoceanography..
Suess, E. Palaeontologia Electronica, 6, 2 ,. Teil I: Invertebraten der Kreide. Muenstersche Forschungen zur Geologie und Palaeontologie, Heft KAMI Kaminski et. Marine Geology Foraminifera published between and Krakow: Grzybowski Foundation Special Publication, Astrorhizina and Saccamminina.. Grzybowski Foundation Special Publication, Hippocrepinina and Hormosinina. Stratigraphy vol. Jahrbuch der Geologischen Bundesanstalt Sonderband Abhandlungen des Hessisches Landesamtes fuer Bodenforschung KUHN Kuhnt et al.
Hart, M. Kaminski, and C. Smart Eds. KUPP Kuppusamy et. Contributions to Geology. Carey, Lea and Blanchard, Philadelphia. Terra Nova Volume 7, Issue 2, pages Geophysical Research Abstracts, Vol. Centenary of Japanese Micropaleontology. Bulletins of American Paleontology, 62 , Available online at the Biodiversity Heritage Library.
Dissertation at the Vrije Universiteit Amsterdam. Taxonomische Revision von Nodosariacea Foram. Kaminski MA, Coccioni R eds. Palaeontologia Electronica Vol. Spirillinidae, Rotalliidae, Epistominidae and Asterinidae.. An illustrated guide to the benthic foraminifera of the Hebridean shelf, west of Scotland, with notes on their mode of life.. Palaeontologia Electronica, 5, 2 ,.
Geroch, S. Grzybowski Foundation Special Publication, 3, to Part II. Early Cretaceous Cuneolinidae. Acta Palaeontologica Romaniae Berita Sedimentologi No. Results, Master Thesis. Abadehella, a new genus of tetrataxid Foraminifera from the Late Permian. Memoirs of the Faculty of Science, Kyoto University. Series of geology and mineralogy. Upper Cretaceous foraminifera in Santonian to Maestrichtian depositional sequences in New Jersey coastal plain.
ORON Oron et al. Harvard, Bull. Late Paleocene to middle Miocene planktonic foraminifer biostratigraphy of the Ceara Rise..
International School on Planktonic Foraminifera, 3rd Course New Revision Poster from Molasse Group Meeting Stuttgart, Proxies for biostratigraphy and palaeoenvironmental change. Journal of Foraminiferal Research, v. Create Alert Alert. Share This Paper. Background Citations. Methods Citations. Citation Type. Has PDF. Publication Type. More Filters. The taxonomy, phylogeny and biostratigraphy of Eocene Turborotalia is reviewed.
Highly Influenced. Between m and m, a rich microfauna comprising abundant benthic and planktonic species suggests an outer shelf to upper bathyal environment [42]. Samples collected below m are rich in assemblages of agglutinating foraminifera with abundant radiolaria, indicating a deeper bathyal environment.
The Foraminifera Orbulina universa is considered a warm-water species and lives in symbiosis with dinoflagellates [32] [52]. The association of Globigerinoides trilobus and Orbulina universa in constant symbiosis with dinoflagellates characterizes a photic environment [32] [55].
Globorotalia species are commonly considered to be deep species [43] [32]. However, the mixture of the foraminifera Globigerinoides bulloides , Obulina universa , Globigerinoide trilobus , Neogloboquadrina pachyderma and the genus Globorotalia can be considered as the effect of a post-mortem transport of species living in the shallow environment to the deep environment or simply by the bioturbation effects [17].
The Middle Miocene is moderately fossiliferous. The interval is characterized by low abundance and diversity of species.
The presence of abundant glauconite contained in some samples confirms a shallower deposition environment, therefore from the outer platform to the upper bathyal. The presence of Cibicidoides at m, species characteristic of a muddy environment of shallow water with low tolerance of salinity and oxygen deficiency [56] [57]; Hanzawaia epipelic from Murray [42] and Pullenia bulloides , endopelic from Murray [58], characteristic of marine conditions of good oxygenation, external platform to bathyal [59]; these benthic foraminifera characterize well a shallow deposition environment.
Samples collected between m and m are weakly fossiliferous composed of a high number of benthic foraminifers with a reduced number of planktonic foraminifers thus marking a shallow bathyal deposition environment. The Lower Miocene samples are generally weakly fossiliferous, reflecting the dysaerobic nature of the deposit in relatively deeper water. The Burdigalian section, from m to m, is made up of mixed assemblages of planktonic, benthic, calcareous and agglutinating foraminifers which characterize an upper bathyal environment with an oxygenated bottom.
Between m and m, although weakly fossiliferous, the Lower Miocene is composed of a high number of agglutinating foraminifers, with very low recovery of planktonic foraminifera. The majority of the samples collected are weakly calcareous and indicate a deeper to abyssal bathyal environment. The North deep sea block was the subject of a study using sediments collected from four wells. This study made it possible to define the lithological characteristics, to carry out a micropaleontological inventory based on planktonic foraminifera, to establish the age of the sediments, biozones and deposit environments of the Miocene.
This study shows a lithological variation in the sediments dominated by dark clays, but marked by an alternation of dark clays, more or less clayey siltstones, fine to coarse sands and limestone. On the basis of the foraminifera collected, the biostratigraphic analysis revealed several bioevents of planktonic foraminifera making it possible to identify fifteen 15 biozones Globorotalia plesiotumida , Globorotalia merotumida , Globorotalia acostaensis , Globorotalia menardii , Globigerina nepenthes , Globorotalia siakensis , Globorotalia fohsi , Globorotalia praefohsi , Globorotalia peripheroacuta , Globorotalia peripheroronda , Praeorbulina sicana , Catapsydrax dissimilis , Globigerinatella insueta , Paragloborotalia kugleri and Globorotalia kugleri corresponding to age between Aquitanian and Messinian.
The micropaleontological harvest is progressively excellent, moderate and weak depending on the sedimentation medium. The biofacies analysis of foraminifera has made it possible to define the palaeoenvironmental characteristics which vary from open marine environments, bathyal to abyssal. The biostratigraphic and biozonation results obtained make it possible to resolve the questions of sequential stratigraphy.
We are very grateful to Murphy and the National Petroleum Society of the Congo snpc for leading this research. The authors declare no conflicts of interest regarding the publication of this paper. In: Fontana, A. Brill, Leiden, Netherlands, 3 Vols, pp. Plankton Stratigraphy. In: Bolli, H. In: de Graciansky, P. In: Funnell, B. Nature, , Palaeogeogr, Palaeoclimatol, Palaeoecol, 16, Eclogae Geologicae Helvetiae, 59, National Museum Bulletin, , In: Edgari, N.
Journal of Foraminiferal Research, 9, Elsevier, New York, p. Micropaleontology, 12, , pls. Springer, New York, p. In: Boltovskoy, D. Micropaleontology, 19, Journal of Foraminiferal Research, 6, Science, , Paleoceanography, 10, Paleoceanography, 11, Marine Micropaleontology, 50, Journal of Foraminiferal Research, 20, Micropaleontology, 23, Micropaleontology, 17, Journal of Foraminiferal Research, 21, Micropaleontology, 39, In: Fischer, G.
Marine Micropaleontology, 36, Marine Micropaleontology, 66, Journal of Phycology, 23, Marine Micropaleontology, 70, Utrecht Micropaleontological Bulletin, 30, Utrecht Micropaleontol. Taureau, 20, Utrecht Micropaleontological Bulletin, 25, p.
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