radiolaria - rads_cat - Zygostephanium


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 -> Z -> Zygostephanium
Other pages this level: Zealithapium, Zonarium, Zonidium, Zoniscus, Zonodiscus, Zygacantha, Zygartus, Zygocampe, Zygocircus, Zygospyris, Zygostephaniscus, Zygostephanium, Zygostephanus

not figuredZygostephanium constrictum Haeckel 1887

Zygostephanium dizonium Haeckel 1887

Zygostephanium paradictyum Haeckel 1887


Citation: Zygostephanium Haeckel 1887
Rank: genus
Type species: Zygostephanium dizonium Haeckel 1887 [designated by Campbell,1954, p.D108]
Described on page(s) : 972
Family (traditional): Trissocyclidae

Current identification:

Original Description

Coronida with four large, partly latticed, lateral gates, without basal gate. Skeleton composed of two meridional rings perpendicular to each other.

The genus Zygostephanium differs from the preceding ancestral genus Zygostephanus in the development of lattice-work along the two crossed rings, produced by their anastomosing branches. Therefore the four large lateral gates between them, which are quite simple, in the preceding genus here become more or less fenestrated.



Greek zygostephanium = small yoked ring"

Extra details from original publication

Editors' Notes
[Although Haeckel here refers to p.446 in his Prodromus of 1881a, there is no genus named Zygostephanium on that or any other page of that reference.


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 years 1873-1876. 18: 1-1803. gs


Zygostephanium compiled by the radiolaria@mikrotax project team viewed: 24-5-2022

Taxon Search:
Advanced Search

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

Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
Captcha Image
Powered by Commentics