Nicklithus amplificus
Set number: 474
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10µm
Ceratolithus amplificus Bukry & Percival, 1971
Ceratolithus dentatus Bukry, 1973
Amaurolithus amplificus (Bukry & Percival, 1971) Gartner & Bukry 1975
Non-birefringent (arguably slightly birefringent) Ceratolith having a C-axis is perpendicular to the plane of a horseshoe. The apical area is well developed, and the ornamented straight horn with keels.
Nicklithus amplificus is distinguished from Amaurolithus primus (Bukry and Percival, 1971) Gartner and Bukry (1975) by having a keeled straight horn.
Bukry, D., (1973): Coccolith stratigraphy, eastern equatorial Pacific, Leg 16, Deep Sea Drilling Project. - Initial Reports of the Deep Sea Drilling Project. 16: 653-711.
Bukry, D. & Percival, S. F., (1971): New Tertiary calcareous nannofossils. - Tulane Studies in Geology and Paleontology. 8: 123-146.
Gartner, S. & Bukry, D., (1975): Morphology and phylogeny of the coccolithophycean family Ceratolithaceae. - Journal of Research of the U.S. Geological Survey. 3: 451-465
Raffi, I., Backman, J. & Rio, D., (1998): Evolutionary trends of tropical calcareous nannofossils in the late Neogene. - Marine Micropaleontology. 35(1): 17-41.
Holotype
Ceratolithus amplificus
Bukry & Percival, 1971
Late Miocene
Lamont core V3-153, Atlantic Ocean