radiolaria - rads_cenozoic - Heliodiscus echiniscus radiolaria - rads_cenozoic - Heliodiscus echiniscus

Heliodiscus echiniscus

Classification: rads_cenozoic -> Heliodiscidae -> Heliodiscus -> Heliodiscus echiniscus
Sister taxa: H. asteriscus, H. echiniscus, H. hexasteriscus, H. tunicatus, H. sp.


Citation: Heliodiscus echiniscus Haeckel 1887
taxonomic rank: species
Basionym: Heliodiscus echiniscus
1887 Heliodiscus echiniscus - Haeckel p. 448; pl. 34, fig. 5
1966 Heliodiscus asteriscus - Benson p. 200-201; pl. 9, fig. 4 (not fig. 3)
1983 Heliodiscus echiniscus - Benson p. 504

Catalog entries: Heliodiscus echiniscus

Original description: Disk with spiny surface, three times as broad as the medullary shell. Pores irregular, roundish ,or polygonal; eight to ten on the radius. Marginal spines thirty to fifty, pyramidal, angular, of very variable size, number, and disposition, gradually passing into the surface-spines; the largest nearly as long as the diameter of the medullary shell.
Remarks on original description: Haeckel listed Heliodiscus echiniscus under the subgeneric name Heliodiscilla, but did not include the subgeneric name in the species name.[comment from RadWorld database]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"

Plot of occurrence data:


Benson, R. N. (1966). Recent Radiolaria from the Gulf of California. Thesis, Minnesota University. 1-577. gs

Benson, R. N. (1983). Quaternary radiolarians from the Mouth of the Gulf of California, Deep Sea Drilling Project Leg 65. Initial Reports of the Deep Sea Drilling Project. 65: 491-523. gs

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


Heliodiscus echiniscus compiled by the radiolaria@mikrotax project team viewed: 23-2-2024

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!