Nannotax3 - ntax_Farinacci - Calcidiscineae Nannotax3 - ntax_Farinacci - Calcidiscineae

CATALOG - Calcidiscineae


Folder trail: ntax_Farinacci -> C -> Calcidiscineae
Folders this level: Calciarcus, Calcicalathina, Calcidiscaceae, Calcidiscineae, Calcidiscus, Calcioconus, Calciopappus, Calciopilleus, Calciosolenia, Calciosoleniaceae, Calcitrema, Calcivascularis, Calculites, Calicasphaera, Calolithus, Calyculaceae, Calyculus, Calyptrolithina, Calyptrolithophora> >>

Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
Taxa are sorted alphabetically for simple browsing, or you can use search boxes at the top & bottom of the page




Current identification:

Compiled data

Citation: Calcidiscineae Varol 2025
Taxonomic rank: suborder
Type species: Calcidiscus
Described on page(s) : 56


Original Description

Diagnosis: Circular to elliptical placoliths with single-layered distal and proximal shields. These shields feature open central areas with or without internal structures, or closed central areas. Under light microscopy (plan view), the single-layered distal shield exhibits constant extinction, indicating a vertical optic axis relative to the microscope stage. The single-layered proximal shield displays inclined extinction with a length-fast (-) elongation or, alternatively, constant extinction.

References:

Varol, O. (2025). A practical guide to optical studies of calcareous nannofossils. Grzybowski Foundation Special Publication. 29: 1-222. gs


nannotaxlogo400px

Calcidiscineae: Catalog entry compiled by Jeremy Young. Viewed: 5-3-2026

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=55784 Go to Archive.is to create a permanent copy of this page - citation notes

Add Comment

* Required information
Captcha Image

Comments

No comments yet. Be the first!