Morphological variation of pike structures in Corbisema (Silicoflagellata) from the early and middle Eocene

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Author(s): McCartney, Kevin; Abe, Kenta; Jordan, Richard W.; Witkowski, Jakub
Author Affiliation(s): Primary:
University of Maine at Presque Isle, Department of Environmental Studies and Sustainability, Pesque Isle, ME, United States
Yamagata University, Japan
University of Szczecin, Poland
Volume Title: INA14 proceedings
Volume Author(s): Self-Trail, Jean, editor
Source: Journal of Nannoplankton Research, 35(2), p.177-184; INA-14; 14th International Nannoplankton Association meeting, Reston, VA, Sept. 15-21, 2013, edited by Jean Self-Trail. Publisher: International Nannoplankton Association, The Hague, International. ISSN: 1210-8049
Note: In English
Summary: Early to Middle Eocene silicoflagellates from three localities (Denmark, Russia and the Arctic Ocean) exhibit a wide range of morphological diversity in their pikes, including unusual distal terminations that have not been previously reported. Some of the Corbisema possess pikes that are rotated consistently in the same direction. Other specimens show a sharp distal change of direction, generally away from the centre of the cell, or a distal termination similar to a sabaton. In some cases, the skeletal morphology and presence or lack of pikes provides information to suggest the double skeleton configuration of the species.
Year of Publication: 2015
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 10 Paleontology, Invertebrate; Arctic Coring EXpedition; Arctic Ocean; Cenozoic; Commonwealth of Independent States; Corbisema; Denmark; Eocene; Europe; Expedition 302; IODP Site M0004; Integrated Ocean Drilling Program; Kamyshlov Russian Federation; Lomonosov Ridge; Lower Eocene; Microfossils; Middle Eocene; Morphology; Mors Island; Paleogene; Russian Federation; Scandinavia; Silicoflagellata; Sverdlovsk Russian Federation; Tertiary; Western Europe
Coordinates: N875200 N875200 E1361100 E1361100
N560500 N615500 E0660500 E0571000
N565000 N565000 E0084500 E0084500
Record ID: 2018037416
Copyright Information: GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand