Timing of shell size increase and decrease of the planktic foraminifer Neogloboquadrina pachyderma (sinistral) during the Pleistocene, IODP Exp. 303 Site U1304, the North Atlantic Ocean

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doi: 10.2174/1874425700801010018
Author(s): Yamasaki, M.; Matsui, M.; Shimada, C.; Chiyonobu, S.; Sato, T.
Author Affiliation(s): Primary:
Akita University, Institute of Applied Earth Sciences, Akita, Japan
Other:
Tohoku University, Japan
Volume Title: Open Paleontology Journal
Source: The Open Paleontology Journal, Vol.1, p.18-23. Publisher: Bentham Science Publishers, Bentham Open, International. ISSN: 1874-4257
Note: In English. 21 refs.; illus., incl. 1 table, sketch map
Summary: We made shell size measurements of the planktic foraminifer Neogloboquadrina pachyderma (sinistral) using samples from IODP Site U1304, the North Atlantic. We found that mean and maximum shell sizes began to increase around 1.1 Ma, and that several episodic changes in test size occurred during 0.6-0.35 Ma. Test size reached a maximum during the late Quaternary. Based on correlation with previous investigations, we have confirmed that these changes in foraminiferal shell size occurred on an inter-ocean scale.
Year of Publication: 2008
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 10 Paleontology, Invertebrate; Atlantic Ocean; Cenozoic; Expeditions 303/306; Foraminifera; Globigerinacea; IODP Site U1304; Integrated Ocean Drilling Program; Invertebrata; Microfossils; Neogloboquadrina; Neogloboquadrina pachyderma; North Atlantic; Northeast Atlantic; Planktonic taxa; Pleistocene; Protista; Quaternary; Rotaliina; Size; Tests
Coordinates: N530300 N530300 W0333200 W0333200
Record ID: 2010023072
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