CATALOG OF ORIGINAL DESCRIPTIONS: Lithapium monocyrtis 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 -> L -> Lithapium -> Lithapium monocyrtis
Other pages this level: L. acutispina, L. anoectum, L. halicapsa, L. monocyrtis, L. plegmacantha, L. pyriforme

Lithapium monocyrtis

Citation: Lithapium monocyrtis Haeckel 1887
Rank: species
Type specimens: pl.14, fig.10
Type repository: No information given
Described on page(s) : p.304
Family (traditional): Actinommidae
Family (modern): Actinommidae

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Current identification/main database link:

Original Description
Proportion of the longer axis to the shorter = 7: 6. Shell thick walled, with irregular, lobed meshes, four to six on the half equator, three to six times as broad as the bars; each mesh composed of three to six confluent roundish pores. Surface quite smooth, without thorns. The single polar spine pyramidal, as broad at the base as the largest mesh, half as long as the radius.(This species is closely allied to the foregoing, but differs in the smooth surface and the larger meshes.)

Major axis 0.15, minor axis 0.13; pores 0.01 to 0.03, bars 0.003 to 0.01; length of the single spine 0.04, basal thickness 0.03.

Editors' Notes
Description: The "foregoing" species to which Haeckel refers here is Lithapium halicapsa Haeckel, 1887a.

Stratigraphic information 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 year 1873-1876, Zoology. 18: 1-1803. gs

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


Lithapium monocyrtis compiled by the radiolaria@mikrotax project team viewed: 16-1-2021

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