CATALOG OF ORIGINAL DESCRIPTIONS: Tympaniscus dipodiscus 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 -> T -> Tympaniscus -> Tympaniscus dipodiscus
Other pages this level: T. bipes, T. corona, T. dipodiscus, T. dodecaster, T. quadrupes, T. tripodiscus

Tympaniscus dipodiscus

Citation: Tympaniscus dipodiscus Haeckel 1887
Rank: species
Type specimens: pl.94, figs.5,6
Type repository: No information given
Described on page(s) : p.1001
Family (traditional): Trissocyclidae
Family (modern): Acanthodesmiidae

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Current identification:

Original Description
Basal ring smaller than the mitral ring, with two lateral descending feet, which are nearly parallel and vertical, obtuse, about as long as the sagittal ring, and which bear on the outside a horizontal spur. Sagittal ring hexagonal, very stout, with a caudal appendix at the base, and with a small sagittal arch, bearing a stout spinulate double knob at the apex. The two subfrontal rings depressed, twice as broad as high, on the outside thorny, connected at each side in the lower half by a double transverse arch.

Breadth of the shell 0.18, length 0.08 (with spines 0.18).

Editors' Notes
Stratigraphic information for LM21 from rRedel, 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 year 1873-1876, Zoology. 18: 1-1803. gs


Tympaniscus dipodiscus compiled by the radiolaria@mikrotax project team viewed: 15-5-2021

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