Reticulofenestra isabellae

Classification: Coccolithophores -> Isochrysidales -> Noelaerhabdaceae -> Reticulofenestra -> R. reticulata group -> Reticulofenestra isabellae
Sister taxa: C. artuziae, R. reticulata, R. isabellae, R. erbae, R. westerholdii, R. sp. cf. reticulata,


Citation: Reticulofenestra isabellae (Catanzariti et al. in Fornaciari et al. 2010) Bown & Newsam 2017
Rank: Species
Basionym: Cribrocentrum isabellae Catanzariti et al. in Fornaciari et al. 2010

Distinguishing features: Similar to R. reticulata but >12µm long

Farinacci & Howe catalog pages: Cribrocentrum isabellae *

Morphology remarks:

>12μm, broad tube-cycle and narrow central-area [Bown & Newsam 2017]

Search data:
TagsLITHS: placolith, circular, sub-circular, CA: grill,
CSPH: spherical, equant, monomorphic, V-UNITS: none, R-UNITS: all, c-str, distal shield, prox shield, tube, R-prominent, DETAILS: ca_conjunct, isogyres kinked, isogyres oblique, rim-unicyclic,
MetricsLith size: 12->16µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Recorded by Fornaciari et al. (2010) as occurring consistently but at low occurrences
Last occurrence (top): within chron C15n sub-Magnetochron (35.00-35.29Ma, top in Priabonian stage). Data source: Fornaciari et al. 2010
First occurrence (base): within chron C16n.2n sub-Magnetochron (36.05-36.70Ma, base in Priabonian stage). Data source: Fornaciari et al. 2010

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: R. reticulata group


    Bown, P. R. & Newsam, C. (2017). Calcareous nannofossils from the Eocene North Atlantic Ocean (IODP Expedition 342 Sites U1403–1411). Journal of Nannoplankton Research. 37(1): 25-60. gs :: view :: open

    Fornaciari, E., Agnini, C., Catanzariti, R., Rio, D., Bolla, E. M. & Valvasoni, E. (2010). Mid- Latitude calcareous nannofossil biostratigraphy and biochronology across the middle to late Eocene transition. Stratigraphy. 7(4): 229-264. gs :: ::


    Reticulofenestra isabellae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 4-7-2020

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    Short stable page link: Go to to create a permanent copy of this page - citation notes

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