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planktonic index species

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Journal Article
Published: 01 December 1979
Canadian Journal of Earth Sciences (1979) 16 (12): 2263-2274.
...Alan McGugan Abstract The Maestrichtian Bolivina incrassata fauna (upper part of Upper Lambert Formation) of Hornby Island (northern Comox Basin) is now recognized in the southern Nanaimo Basin on Gabriola and Galiano Islands. The Maestrichtian planktonic index species Globotruncana contusa occurs...
Journal Article
Published: 01 April 2009
Journal of Foraminiferal Research (2009) 39 (2): 112-119.
...Silvia Spezzaferri; Paul N. Pearson Abstract The Oligocene–Miocene transition is characterized by a low degree of biotic turnover (extinction plus origination) in many microfossil groups and especially in planktonic foraminifera. Few species appear, evolve, and disappear across this boundary...
Journal Article
Published: 01 October 1955
Micropaleontology (1955) 1 (4): 301-313.
...Lawrence Weiss Abstract An account of planktonic foraminifers of northwest Peru which are significant guide fossils for beds ranging in age from Cretaceous to Miocene. Formation tables, a range chart of the foraminifers, a systematic list, and descriptions of the species in order of decreasing age...
Journal Article
Published: 01 January 2017
Journal of Foraminiferal Research (2017) 47 (1): 56-69.
...., 2001 ; Gerhardt et al., 2000 ; Flores et al., 2003 ; Hales, 2003 ; Frenz & Henrich, 2007 ), and those based on micropaleontological parameters such as the fragmentation index, benthic/planktonic ratio, and resistant species ratio in foraminifers (e.g., Peterson & Prell, 1985 ; Bickert et...
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Journal Article
Published: 01 July 1967
Micropaleontology (1967) 13 (3): 319-326.
...K. H. A. Gohrbandt Abstract Five new species and one new subspecies of planktonic foraminifera of the genera Globanomalina, Globorotalia, and Globigerina are described from lower and middle Eocene deposits of Salzburg province, Austria, and their stratigraphic ranges are evaluated. GeoRef...
Journal Article
Published: 01 April 1962
Micropaleontology (1962) 8 (2): 219-254.
...Frances L. Parker Abstract "Planktonic species of foraminifera in the Recent sediments of the Pacific are discussed within the framework of a modified classification. Two families, Globigerinidae and Globorotaliidae, are represented. The family affiliation of Globigerinita and Candeina is uncertain...
Journal Article
Published: 01 October 2000
Journal of Foraminiferal Research (2000) 30 (4): 336-360.
... and oceanographic features with emphasis on the Kuroshio Current. Thirty-nine species of planktonic foraminifera were identified and grouped into 27 species and species groups based upon taxonomic and ecologic criteria. Calculation of a correlation matrix in the form of a similarity index allowed for a comparison...
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Journal Article
Published: 01 January 2001
Journal of Foraminiferal Research (2001) 31 (1): 25-32.
...Denise L. Bäckström; Antoon Kuijpers; Jan Heinemeier Abstract The distribution of planktonic foraminiferal species in two cores, ENAM 30 and ENAM 94-13, taken within the framework of the European North Atlantic Margin (ENAM) project from water depths of around 1200 m, south-west of the Faeroe...
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Journal Article
Journal: Palynology
Published: 01 March 2015
Palynology (2015) 39 (1): 125-141.
... . Science China Earth Sciences 52 ( 3 ): 287 – 299 Fensome RA Williams GL Barss MS Freeman JM Hill JM . 1990 . Acritarchs and fossil prasinophytes: an index to genera, species and intraspecific taxa . American Association of Stratigraphic Palynologists Contribution , Canada...
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Series: GSA Special Papers
Published: 01 January 1970
DOI: 10.1130/SPE124-p131
.... Significant planktonic foraminiferal species of the California lower Miocene include an abundance of Globigerina concinna Reuss (with 5 chambers in the final whorl), and the presence of Catapsydrax stainforthi Bolli, Loeblich, and Tappan and Globorotaloides suteri Bolli. Abundant and significant...
Journal Article
Published: 01 October 2009
Journal of Foraminiferal Research (2009) 39 (4): 316-321.
... scarce. These include species of Chiloguembelina coeval with chiloguembelinid abundance peaks in the Atlantic that have been associated with nutrient-enriched waters. The Punta Noguera Formation, which is rich in radiolarians and phosphatic nodules, yielded only two planktonic foraminiferal species, both...
Series: Special Publications
Publisher: Society for Sedimentary Geology
Published: 01 January 0001
DOI: 10.2110/sepmsp.111.04
EISBN: 9781565763616
... the reliability of the surface dweller C. pilula as the best proxy for recognition of the base of the Santonian Stage from epicontinental to open-ocean depositional settings and in a wide range of paleolatitudes. The identification of planktonic foraminiferal index species across stage...
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Journal Article
Published: 29 October 2018
Journal of Foraminiferal Research (2018) 48 (4): 301-313.
... such as Quinqueloculina , Hoeglundina and Bulimina , and the planktonic species O. universa can be used to indicate limited dissolution in paleoceanographic studies. Small variations in the dissolution index may also reflect oceanographic changes that influence the composition of the tests, indicating the importance...
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Journal Article
Journal: Geology
Published: 01 December 1980
Geology (1980) 8 (12): 582-585.
...William L. Balsam; Karl W. Flessa; N. G. Kipp; Lisa G. DuBois Abstract We calculated diversity indices for planktonic foraminifera in both modern and 18,000 B.P. (late Wisconsin glacial maximum) North Atlantic sediment samples. Modern diversity patterns, especially those based on the Shannon index...
Journal Article
Published: 01 April 2001
Journal of Foraminiferal Research (2001) 31 (2): 120-132.
...Paul N. Pearson; Richard D. Norris; Andrew J. Empson Abstract We describe Mutabella mirabilis, a new genus and species of Miocene microperforate planktonic foraminifera. The species is known from several drill sites in the tropical Pacific, Indian and Atlantic Oceans (Deep Sea Drilling Project...
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Journal Article
Published: 01 September 2007
Journal of Paleontology (2007) 81 (5): 1020-1030.
...). The new species was probably favored by extraordinary paleoecological conditions (high sea-surface temperatures and probably also high nutrient levels) prevailing in neritic waters of the IETM; a time during which aberrant morphotypes were also recorded among other planktonic protists. The apparent...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1957
AAPG Bulletin (1957) 41 (4): 656-674.
... a monophyletic origin and that dispersal of some of the evolving groups during the Oligocene and the Miocene was a rapid process. Stratigraphic relationships between miogypsinid species and planktonic Foraminifera in the Gulf Coast offer the key to world-wide correlations and proper use of some of the European...
Journal Article
Journal: PALAIOS
Published: 01 January 2014
PALAIOS (2014) 29 (1): 38-44.
...RODRIGO DA COSTA PORTILHO-RAMOS; CÁTIA FERNANDES BARBOSA; ARISTÓTELES MORAES RIOS-NETTO Abstract Relative abundances of planktonic foraminiferal species from two cores from the subtropical, southwestern Atlantic indicate changes in oceanic conditions during the last glacial–interglacial cycle...
Journal Article
Journal: Paleobiology