radiolaria - rads_cat - Phormocyrtis longicornis radiolaria - rads_cat - Phormocyrtis longicornis

CATALOG OF ORIGINAL DESCRIPTIONS: Phormocyrtis longicornis 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 -> P -> Phormocyrtis -> Phormocyrtis longicornis
Other pages this level: P. alexandrae, P. annosa, P. bucharica, P. carinata, P. costata, P. ligulata, P. longicornis, P. proxima, P. quadrata, P. striata, P. striata praexquisita, P. vasculum

Phormocyrtis longicornis

Citation: Phormocyrtis longicornis Haeckel 1887
taxonomic rank: species
Described on page(s) : p.1370
Type specimens: pl.69, fig.15
Type repository: No information given
Family (traditional): Theoperidae
Family (modern): Pterocorythidae

Current identification:

Original Description

Shell slender, ovate, rough, with two slight strictures. Length of the three joints = 3: 8: 12, breadth = 4: 10: 11. Cephalis hemispherical, with a very large, cylindrical born, about as long as the shell. Thorax hemispherical, with regular, circular, hexagonally-framed pores. Abdomen subcylindrical, with twenty to twenty-four nearly parallel undulate ribs, and alternate longitudinal rows of regular, circular pores. Mouth constricted, circular, about half as broad as the thorax.

Length of the three joints, a 0.03, b 0.08, c 0.12; breadth, a 0.04, b 0.1, c 0.11. [dimensions in mm]

Editors' Notes
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 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


Phormocyrtis longicornis compiled by the radiolaria@mikrotax project team viewed: 23-7-2024

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!