Distinguishing features:
Parent taxon (R. pseudoumbilicus group): Neogene elliptical reticulofenestrids with an open central area (spanned by delicate proximal net, not visible in lm)
This taxon: Species of Reticulofenestra with the tube extended as a flaring cup-shaped structure.
See also: Reticulofenestra maceria - a very similar late Eocene species;
Search data:| LITHS: placolith, elliptical, CA: ca_conjunct, grill, vacant, CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent, |
| Lith size: 2.5->4.5µm; |
Geological Range:
Notes: Short interval within zone NN15
Last occurrence (top): within NN15 zone (3.70-3.92Ma, top in Zanclean stage). Data source: Young 1998
First occurrence (base): within NN15 zone (3.70-3.92Ma, base in Zanclean stage). Data source: Young 1998
Plot of occurrence data:
Crudeli, D. & Kinkel, H. (2004). Reticulofenestra calicis n. sp., an unusual small reticulofenestrid coccolith from the Lower Pliocene of the South Caribbean Sea. Micropaleontology. 50(4): 369-379. gs Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 225-265. gs References:

![]()
![]() |
Reticulofenestra calicis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-7-2026
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1155 Go to Archive.is to create a permanent copy of this page - citation notes |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments