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 -> T -> Tympaniscus
Other pages this level: << < Tripospyris, Triprionium, Tripterocalpis, Trisolenia, Trissocircus, Trissocyclus, Trissopilium, Tristephanium, Tristylospyris, Trisulcus, Trizonium, Trochodiscus, Trypanosphaera, Tubosphaera, Tympanidium, Tympaniscus, Tympanium

not figuredTympaniscus bipes Haeckel 1887

not figuredTympaniscus corona Haeckel 1887

Tympaniscus dipodiscus Haeckel 1887

not figuredTympaniscus dodecaster Haeckel 1887

Tympaniscus quadrupes Haeckel 1887

Tympaniscus tripodiscus Haeckel 1887


Citation: Tympaniscus Haeckel 1887
Rank: genus
Type species: Tympaniscus corona Haeckel 1887 [designated by Chediya,1959, p.174]
Described on page(s) : 1001
Family (traditional): Trissocyclidae

<% linkedspecs %>

Current identification:

Original Description
Tympanida with two bisected horizontal rings, which are connected by three vertical meridional rings (or six columelae).

The genus Tympaniscus and the following Tympanidium differ from all preceding Tympanida in the multiplication of the vertical columellae, which connect the two horizontal bisected rings. Tympaniscus exhibits six columellae, which may be regarded as halves of three meridional rings. Only one, however, of these is complete (the sagittal ring, which bisects the mitral and the basal ring); the two other meridional rings, (placed in diagonal planes) may be regarded as produced by lateral bifurcation of an incomplete frontal ring; this appears to be already foreshadowed in the preceding Octotympanum.

Etymology: Greek tympaniscus = little drum"


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


Tympaniscus compiled by the radiolaria@mikrotax project team viewed: 20-6-2021

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