CATALOG OF ORIGINAL DESCRIPTIONS: Sethornithium dictyopterum 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 -> S -> Sethornithium -> Sethornithium dictyopterum
Other pages this level: S. dictyopterum

Sethornithium dictyopterum

Citation: Sethornithium dictyopterum Haeckel 1887
Rank: species
Type locality: LM25
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.68, fig.14
Type repository: No information given
Described on page(s) : p.1356

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Current identification:

Original Description
Shell ovate, with two slight strictures. Length of the three joints = 2: 4: 3, breadth = 1: 5: 4. Cephalis ovate, with a pyramidal horn of twice the length. From the middle part of the thorax arise three broad, triangular, latticed wings of about the same length, the distal end of each of which is curved downwards. Abdomen inversely conical. Pores regular, circular. (Similar to Lithornithium fringilla, Pl. 67, fig. 2, but with much larger wings, which in the greater part are fenestrated.)

Size: Length of the three joints, a 0.04, b 0.08, c 0.06; breadth, a 0.02, b 0.1, c 0.08.


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


Sethornithium dictyopterum compiled by the radiolaria@mikrotax project team viewed: 4-3-2021

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