CATALOG OF ORIGINAL DESCRIPTIONS: Crucidiscus Haeckel 1887

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: rads_cat -> C -> Crucidiscus
Other pages this level: << < Craspedilium, Craterocyclas, Cristallosphaera, Cromyatractus, Cromydruppocarpus, Cromyechinus, Cromyocarpus, Cromyodruppa, Cromyodrymus, Cromyomma, Cromyosphaera, Cromyosphaerium, Cromyostaurolonche, Cromyostaurus, Cromyostylus, Crucidiscus, Cryptocapsa, Cryptocarpium, Cryptocephalus, Cryptogyrus, Cryptolarnacium, Cryptopera, Cryptoprora, Cubaxonium, Cubosphaera, Cubotholonium, Cubotholus, Cuniculiformis, Cycladophora, Cyclampterium, Cyclastrum> >>

not figuredCrucidiscus cruciatus Haeckel 1887

not figuredCrucidiscus cuspidatus Haeckel 1887

not figuredCrucidiscus echinatus Haeckel 1887

Crucidiscus endostaurus Haeckel 1887

Crucidiscus

Citation: Crucidiscus Haeckel 1887
Rank: genus
Type species: Crucidiscus cuspidatus Haeckel 1887 [designated by Campbell,1954, p.D78]
Described on page(s) : 415
Family (traditional): not-known

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Current identification:


Original Description
Cenodiscida with four radial spines on the margin of the disk, crossed in the equatorial plane.

Etymology: From the Greek crucidiscus = disk with cross"

Extra details from original publication
The genus Crucidiscus is the most simple form of the Staurodiscida, or of the numerous Discoidea (belonging to different families) in which the margin of the disk bears four radial spines, lying in the equatorial plane, and crossed at right angles. Whilst commonly the internal shell-cavity of Crucidiscus is quite simple, in one case it bears four centripetal axial rods, as inner prolongation of the outer radial cross-spines, perhaps indications of a lost medullary shell (comp. p.410).

[The discussion on p.410, referred to in the text, is part of the family description for Cenodiscida.]
Sub-genera described:

References:

Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs


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Crucidiscus compiled by the radiolaria@mikrotax project team viewed: 2-3-2021

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