Citation: Ceratolithus? atlanticus Perch-Nielsen, 1977Taxonomic rank: speciesTaxonomic discussion: Ornate form, very rare. Described from NN12, but similar specimens from NN9 have been illustrated by Raffi and Flores (1995 p279, plate 4, figs 5-7), Raffi et al. (1998) and Young (1998)
Distinguishing features: Parent taxon (Ceratolithus): Ceratoliths strongly birefringent This taxon: complex ceratoliths with spines extending from arch
Lith size: 4->8µm; Segments: 1->1; Data source notes: lith width from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes
Geological Range: Notes: Questions over earliest and latest occurrence Last occurrence (top): within NN12 zone (5.12-5.59Ma, top in Zanclean stage). Data source: Young 1998 First occurrence (base): within NN9 zone (9.53-10.55Ma, base in Tortonian stage). Data source: Young 1998
Plot of occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Ceratolithus atlanticus, synonyms included - Ceratolithus atlanticus;
Blair, S. A., Bergen, J. A., de Kaenel, E., Browning, E. & Boesiger, T. M. (2017). Upper Miocene-Lower Pliocene taxonomy and stratigraphy in the circum North Atlantic Basin: radiation and extinction of Amauroliths, Ceratoliths and the D. quinqueramus lineage. Journal of Nannoplankton Research. 37(2-3): 113-144. gsO
Perch-Nielsen, K. (1977). Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39: 699-823. gsO
Raffi, I. & Flores, J. -A. (1995). Pleistocene through Miocene calcareous nannofossils from eastern equatorial Pacific Ocean (Leg 138). Proceedings of the Ocean Drilling Program, Scientific Results. 138: 233-286. gsO
Raffi, I., Backman, J. & Rio, D. (1998). Evolutionary trends of tropical calcareous nannofossils in the late Neogene. Marine Micropaleontology. 35(1): 17-41. gs
Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 225-265. gs
Ceratolithus atlanticus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-4-2025
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