Cyrtolagena laguncula

Classification: rads_cenozoic -> Theoperidae -> Cyrtolagena -> Cyrtolagena laguncula
Sister taxa: C. aglaolampa, C. laguncula, C. sp.


Citation: Cyrtolagena laguncula Haeckel 1887
Rank: species
Basionym: Cyrtolagena laguncula
Taxonomic discussion: Haeckel 1887 p.1451 pl.75 fig.10

Catalog entries: Cyrtopera laguncula

Original description: Shell bottle-shaped, with seven sharp strictures; the upper part is slender, conical, composed of seven joints of nearly equal length; the lower part is only formed by the spherical last joint. Cephalis subspherical, with a slender curved horn of three times the length. Along the whole shell arise three longitudinal combs or rows of ascending spines (three on each joint, fifteen on the last). These are connected by three divergent longitudinal rods, so that three elegant fenestrated ribs are formed (each rib with one series of large square meshes). Pores in the seven upper joints regular, circular, in the last polygonal, irregular and larger.
Remarks on original description: Haeckel listed Cyrtopera laguncula under the subgeneric name Cyrtolagena and uses it in the other name Cyrtolagena laguncula in the figure description.
New name Cyrtolagena laguncula (Haeckel) Petrushevskaya, 1971b[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:


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


Cyrtolagena laguncula compiled by the radiolaria@mikrotax project team viewed: 12-4-2021

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