arrayname: original
Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | Nicklithus amplificus Similar to A. primus but larger and angular; right arm straight with dentate keel and longer than left. |
Taxonomy:
Distinguishing features:
Parent taxon (Ceratolithaceae): Horseshoe-shaped rod-shaped nannoliths and simple hoop-coccoliths formed in one phase of life cycle, planolith heterococcoliths in the other.
This taxon: Ceratoliths non-birefringent or only weakly birefringent; left arm straight and with nodes
Farinacci & Howe catalog pages: Nicklithus *
Search data:
LITHS: nannolith-other, horseshoe-shaped, asymmetric, CROSS-POLARS: V-prominent, 1ou, |
Lith size: 6->12µm; |
Geological Range:
Last occurrence (top): at top of NN11c subzone (100% up, 5.9Ma, in Messinian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within NN11c subzone (5.94-6.91Ma, base in Messinian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
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 References:
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Nicklithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-3-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=938 Go to Archive.is to create a permanent copy of this page - citation notes |
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