radiolaria - rads_cat - Heliodiscus trigonodon radiolaria - rads_cat - Heliodiscus trigonodon

CATALOG OF ORIGINAL DESCRIPTIONS: Heliodiscus trigonodon 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 -> H -> Heliodiscus -> Heliodiscus trigonodon
Other pages this level: << < H. lentis, H. linckiaformis, H. marginatus, H. ninae, H. pentasteriscus, H. perplexus, H. pertusus, H. polymorphus, H. quadratus, H. saturnalis, H. saturnalis [junior homonym], H. saturnalis jh, H. siculus, H. solaster, H. sulcatus, H. trigonodon, H. trochiscus, H. tunicatus, H. zoroaster, H. furcatus, H. setosus

Heliodiscus trigonodon

Citation: Heliodiscus trigonodon Haeckel 1887
taxonomic rank: species
Described on page(s) : p.445
Type repository: No information given
Family (traditional): Heliodiscidae
Family (modern): Heliodiscidae

Current identification:

Original Description

Disk with smooth surface, four times as broad as the medullary shell. Pores regular, circular; eighteen to twenty on the radius. Marginal spines sixteen to twenty, equilateral triangular, flat, smooth, about as long and broad as the radius of the medullary shell.

Diameter of the disk 0.2, of the medullary shell 0.05; length of the radial spines 0.03, basal breadth 0.03. [dimensions in mm]

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Heliodiscus trigonodon under the subgeneric name Heliodiscetta, but did not include the subgeneric name in the species name.

Stratigraphic inforamtion for LM21 from Riedel, 1959, p.287


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 O

Riedel, W. R. (1959a). Oligocene and Lower Miocene Radiolaria in tropical Pacific sediments. Micropaleontology. 5(3): 285-302. gs


Heliodiscus trigonodon compiled by the radiolaria@mikrotax project team viewed: 17-6-2024

Taxon Search:
Advanced Search

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

Add Comment

* Required information
Captcha Image
Powered by Commentics


No comments yet. Be the first!