radiolaria - rads_cenozoic - Dictyoprora urceolus radiolaria - rads_cenozoic - Dictyoprora urceolus

Dictyoprora urceolus

Classification: rads_cenozoic -> Artostrobiidae -> Dictyoprora -> Dictyoprora urceolus
Sister taxa: D. amphora, D. armadillo, D. mongolfieri, D. ovata, D. physothorax, D. pirum, D. salillum, D. urceolus, D. sp.


Citation: Dictyoprora urceolus Haeckel 1887
taxonomic rank: species
Basionym: Dictyoprora urceolus
1887 Dictyocephalus urceolus - Haeckel p. 1305
1942 (?) Dictyocephalus (Dicteyprora) pulcherrimus - Clark and Campbell p. 78, pl. 8, figs. 2,3,6,7
1973 Theocampe urceolus - Foreman p. 432, pl. 8, figs. 14-17; pl. 9, figs. 6,7
1975 Theocampe urceolus - Chen pl. 3, fig. 7

Catalog entries: Dictyocephalus urceolus

Original description: Shell smooth, thick-walled, urceolate, with obliterated collar stricture. Length of the two joints = 5: 12, breadth = 4: 10. Cephalis campanulate, with numerous oblique pore-canals. Thorax inflate, with five or six transverse rows of roundish pores of equal size. Mouth constricted, nearly half as broad as the thorax, with a broad hyaline peristome.

Cephalis 50µm long, 40µm broad; thorax 120µm long, 100µm broad. [dimensions in mm]
Remarks on original description: Haeckel listed Dictyocephalus urceolus under the subgeneric name Dictyoprora, but did not include the subgeneric name in the species name.
Stratigraphic information for LM21 from Riedel, 1959, p.287.
Equivalent to ?Eucrytidium Mongolfieri Bury, 1862, pl. v. fig. 2.
New name Theocampe urceolus Foreman, 1973a, modified in Dictyoprora urceolus (Haeckel) by Nigrini 1977]]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P 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 years 1873-1876. 18: 1-1803. gs O

Missing or ambiguous references: Chen 1975; Foreman 1973;


Dictyoprora urceolus compiled by the radiolaria@mikrotax project team viewed: 22-5-2024

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