NB This site is under active development, current content in the main database is primarily from Bolli et al 1994, Hayward et al. 2012, Holbourn et al. 2013, Holbourn and Kaminski 1997, Alegret & Thomas 2001, and Katz et al. 2003. It is intended to expand and develop this to provide rather comprehensive coverage of Mesozoic and Cenozoic deep-sea benthic foraminifera.
Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | ![]() | ![]() | Silicosigmoilina akkeshiensis | |
Silicosigmoilina sp. |
Catalog entries: Silicosigmoilina, Bramletteia
NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus.Search data:
Final whorl chambers: ->0 |
Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage).
First occurrence (base): within (-Ma, base in "Holocene" stage).
Plot of occurrence data:
NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer
Cushman, J. A. & Church, C. C. (1929). Some Upper Cretaceous foraminifera from near Coalinga, California. Proceedings of the California Academy of Sciences. 18(16): 497-530. gs Israelsky, M. C. (1951). Foraminifera of the Lodo Formation, central California; General introduction and Part 1, arenaceous foraminifera. U.S. Geological Survey, Professional Paper. 240(A): 1-29. gs Loeblich, A. R. Jr & Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold, New York. 1-970. gs Takayanagi, Y. (1960). Cretaceous foraminifera from Hokkaido, Japan. Science Reports of the Tohoku University. 32(1): 1-154. gsReferences:
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Silicosigmoilina compiled by the bforams@mikrotax project team viewed: 13-7-2025
Short stable page link: https://mikrotax.org/bforams/index.php?id=2001584 Go to Archive.is to create a permanent copy of this page - citation notes |
bforams@mikrotax has been supported by US IODP Science Support Program and by the Geologic TimeScale Foundation![]() ![]() |