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  1. Book: Atlas of Paleocene planktonic foraminifera

    Olsson, Richard K

    (Smithsonian contributions to paleobiology ; no. 85)

    1999  

    Author's details Richard K. Olsson ... [et al.], editors
    Series title Smithsonian contributions to paleobiology ; no. 85
    Keywords Foraminifera, Fossil. ; Paleontology
    Language English
    Size v, 252 p. :, ill., maps ;, 28 cm.
    Publisher Smithsonian Institution Press
    Publishing place Washington, D.C
    Document type Book
    Note "Issued Mar. 3, 1999."
    Database NAL-Catalogue (AGRICOLA)

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  2. Book: Atlas of Paleocene planktonic foraminifera

    Olsson, Richard K

    (Smithsonian contributions to paleobiology ; 85)

    1999  

    Author's details Richard K. Olsson ... eds
    Series title Smithsonian contributions to paleobiology ; 85
    Language English
    Size V, 252 S., Ill., graph. Darst., Kt., 28 cm
    Publisher Smithsonian Inst. Press
    Publishing place Washington, DC
    Document type Book
    Note Includes bibliographical references (p. 100 - 106) and index
    Database Former special subject collection: coastal and deep sea fishing

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  3. Book: Atlas of Paleocene planktonic foraminifera

    Olsson, Richard K

    (Smithsonian contributions to paleobiology ; 85)

    1999  

    Author's details Richard K. Olsson ... eds
    Series title Smithsonian contributions to paleobiology ; 85
    Language English
    Size V, 252 S., Ill., graph. Darst., Kt., 28 cm
    Publisher Smithsonian Inst. Press
    Publishing place Washington, DC
    Document type Book
    Note Includes bibliographical references (p. 100 - 106) and index
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  4. Book ; Online: (Table 1) Test sizes of Morozovelloides crassatus from ODP Site 171-1052, supplementary data to: Wade, Bridget S; Olsson, Richard K (2009): Investigation of pre-extinction dwarfing in Cenozoic planktonic foraminifera. Palaeogeography, Palaeoclimatology, Palaeoecology, 284(1-2), 39-46

    Wade, Bridget S / Olsson, Richard K

    2009  

    Abstract: We propose a phenomenon termed "pre-extinction dwarfing" in Cenozoic planktonic foraminifera. High-resolution morphometric analysis shows a reduction in maximum or mean test size in the 2-20 kyr interval preceding the extinction of Pliocene Globorotalia ... ...

    Abstract We propose a phenomenon termed "pre-extinction dwarfing" in Cenozoic planktonic foraminifera. High-resolution morphometric analysis shows a reduction in maximum or mean test size in the 2-20 kyr interval preceding the extinction of Pliocene Globorotalia exilis and Globorotalia miocenica from the Caribbean Sea and middle Eocene Morozovelloides crassatus from the western North Atlantic. Through a series of case studies and review of qualitative observations from the literature, we suggest that dwarfing occurs in a number of species of planktonic foraminifera foreshadowing their demise and that such size changes are not just a phenomenon associated with mass extinction events. We propose that this is a common stress-induced pattern that results in diminutive size in the pre-extinction interval.
    Language English
    Dates of publication 2009-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1016/j.palaeo.2009.08.026
    DOI 10.1594/PANGAEA.777716
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  5. Book ; Online: The biostratigraphy and paleobiology of Oligocene planktonic foraminifera from the equatorial Pacific Ocean, supplementary data to: Wade, Bridget S; Berggren, William A; Olsson, Richard K (2007): The biostratigraphy and paleobiology of Oligocene planktonic foraminifera from the equatorial Pacific Ocean (ODP Site 1218). Marine Micropaleontology, 62(3), 167-179

    Wade, Bridget S / Berggren, William A / Olsson, Richard K

    2007  

    Abstract: Planktonic foraminifera from a continuous Oligocene succession with clear magnetochronology and sediment cycles at Ocean Drilling Program Site 1218 (equatorial Pacific Ocean) were studied in the interval from 27 to 30 Ma. Paragloborotalia taxa are common ...

    Abstract Planktonic foraminifera from a continuous Oligocene succession with clear magnetochronology and sediment cycles at Ocean Drilling Program Site 1218 (equatorial Pacific Ocean) were studied in the interval from 27 to 30 Ma. Paragloborotalia taxa are common and we examined their size, relative abundance, and stable isotopes. Multispecies stable isotope data indicate the depth habitats of Oligocene planktonic foraminifera and suggest that "Globoquadrina" venezuelana and Dentoglobigerina globularis were probably mixed-layer dwellers, with paragloborotaliids recording heavier delta18O signatures consistent with a thermocline habitat. Cyclic variations in the abundance of Paragloborotalia match eccentricity (100 kyr) variations in percent carbonate and delta13C, suggesting orbitally forced upwelling in the equatorial Pacific Ocean and that Paragloborotalia were responding directly to changes in surface water productivity. The high-resolution biostratigraphy calibrated to the magnetochronology constrains the extinction of Paragloborotalia opima which marks the top of Planktonic Foraminifera Biozone O5 (P21b) at 27.456 Ma. The highest occurrence of P. opima is associated with a 50% size decrease in Paragloborotalia pseudocontinuosa taxa within Chron 9n. In addition, we find the extinction of Chiloguembelina cubensis is consistent with other deep-sea sections within Chron 10n at 28.426 Ma marking the O4/O5 (P21a/P21b) boundary.
    Language English
    Dates of publication 2007-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1016/j.marmicro.2006.08.005
    DOI 10.1594/PANGAEA.691329
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  6. Book ; Online: Upper Eocene to Oligocene strontium, carbon and oxygen isotope record of DSDP holes, supplementary data to: Miller, Kenneth G; Feigenson, Mark D; Kent, Dennis V; Olsson, Richard K (1988): Upper Eocene to Oligocene isotope (87Sr/86Sr, d18O, d13C) standard section, Deep Sea Drilling Project Site 522. Paleoceanography, 3(2), 223-233

    Miller, Kenneth G / Feigenson, Mark D / Kent, Dennis V / Olsson, Richard K

    1988  

    Abstract: We improved upper Eocene to Oligocene deep-sea chronostratigraphic control by integrating isotope (87Sr/86Sr, delta18O, delta13C) stratigraphy and magnetostratigraphy. Most previous attempts to establish the timing of isotope fluctuations have relied ... ...

    Abstract We improved upper Eocene to Oligocene deep-sea chronostratigraphic control by integrating isotope (87Sr/86Sr, delta18O, delta13C) stratigraphy and magnetostratigraphy. Most previous attempts to establish the timing of isotope fluctuations have relied upon biostratigraphic age estimates which have uncertainties of 0.5 to over 4.0 m.y. Deep Sea Drilling Project (DSDP) Site 522 contains the best available upper Eocene to Oligocene magnetostratigraphic record which allows first-order correlations of isotope records (87Sr/86Sr, delta18O, delta13C) to the Geomagnetic Polarity Time Scale (GPTS). Empirical calibrations between the 87Sr/86Sr of foraminifera and magnetochronology at Site 522 allow more precise correlation of ,unknown' samples with the GPTS. For example, shallow water and high-latitude sections may be tied into the deep-sea record. Sr-isotope stratigraphic resolution for the latest Eocene to Oligocene is approximately 2 m.y.
    Language English
    Dates of publication 1988-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1029/PA003i002p00223
    DOI 10.1594/PANGAEA.726896
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  7. Article ; Online: Surface Texture and the First Occurrence of Spines in Planktonic Foraminifera from the Early Tertiary

    Hemleben, Christoph / Mühlen, Dorothe / Olsson, Richard K. / Berggren, Willian A.

    1991  

    Language English
    Publisher Schweizerbart
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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