radiolaria - rads_cenozoic - Buryella pentadica radiolaria - rads_cenozoic - Buryella pentadica

Buryella pentadica

Classification: rads_cenozoic -> Artostrobiidae -> Buryella -> Buryella pentadica
Sister taxa: B. clinata, B. dumitricai, B. foremanae, B. granulata, B. helenae, B. insensis, B. kaikoura, B. pentadica, B. petrushevskayae, B. tetradica, B. sp.


Citation: Buryella pentadica Foreman 1973
Rank: species
Basionym: Buryella pentadica
Taxonomic discussion: Foreman 1973 p 433 pl 8 fig 8 pl 9 figs 15-16; Blome 1992 (ODP 122 SR) p 644 pl 3 figs 4-5

Catalog entries: Buryella pentadica

Original description: Shell of five segments, subovate, smooth, with none of the strictures expressed externally. Cephalis subspherical with a few circular pores, bearing a short, bladed or smooth conical horn. Collar stricture with four collar pores internally and a vertical pore expressed as a short, horizontally directed tube. Thorax and third segment conical, with circular pores in approximately transverse rows. Fourth segment largest, inflated, with greatest dimension medianly or in the distal half. Uniform circular pores are arranged in longitudinal and four to six, generally five, transverse rows. Area between longitudinal rows raised. Last segment truncate, inverted-conical, with thinner wall and three to five transverse rows of circular to elliptical pores. Distal margin scalloped or even, without a differentiated rim.

(Based on 15 specimens) Length overall, exclusive of horn, 130-150µm, length of cephalis and thorax together 20-25µm, of third segment 20-25µm, of fourth segment 45-60µm, of last segment 30-50µm; greatest width 65-90µm. Distinguishing characters (rw): This species is distinguished from its descendant B. tetradica as described under that species. Phylogeny (rw): Ancestor of B. tetradica


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:


Blome, C. D. (1992). Radiolarians from Leg 122, Exmouth and Wombat Plateaus, Indian Ocean C.D. Blome. Proceedings of the Ocean Drilling Program, Scientific Results. 122: 633-652. gs

Foreman, H. P. (1973b). Radiolaria of Leg 10 with systematics and ranges for the families Amphipyndacidae, Artostrobiidae, and Theoperidae. Initial Reports of the Deep Sea Drilling Project. 10: 407-474. gs O


Buryella pentadica compiled by the radiolaria@mikrotax project team viewed: 1-6-2023

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