Cyclicargolithus neogammation
Set number: 1619
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10µm
Set number: 404
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10µm
Set number: 405
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10µm
Set number: 406
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10µm
Cyclococcolithus neogammation Bramlette & Wilcoxon, 1967
Species of Cyclicargolithus have a size range of 6.0 μm to 10.5 μm. The extinction angle measured is typically around 9° on the distal shield and approximately 77° on the tube cycles on the distal side.
Cyclicargolithus neogammation differs from Cyclicargolithus floridanus by being 6.0-10.5µm, whereas the size of the latter is less than 6.0µm.
Bramlette, M. N. & Wilcoxon, J. A. 1967. Middle Tertiary calcareous nannoplankton of the Cipero section, Trinidad, W.I. Tulane Studies in Geology and Paleontology 5: 93-131.
Bukry, D. 1971b. Cenozoic calcareous nannofossils from the Pacific Ocean. - San Diego Society of Natural History Transactions 16: 303-327.
Hay, W. W., Mohler, H. P., Roth, P. H., Schmidt, R. R. & Boudreaux, J. E. 1967. Calcareous nannoplankton zonation of the Cenozoic of the Gulf Coast and Caribbean-Antillean area, and transoceanic correlation. - Transactions of the Gulf-Coast Association of Geological Societies 17: 428-480.
Holotype
Cyclococcolithus neogammation
Bramlette & Wilcoxon, 1967
Oligocene
Cipero Section, Trinidad