radiolaria - rads_cenozoic - Didymocyrtis violina radiolaria - rads_cenozoic - Didymocyrtis violina

Didymocyrtis violina

Classification: rads_cenozoic -> Coccodiscidae -> Didymocyrtis -> Didymocyrtis violina
Sister taxa: D. antepenultima, D. avita, D. bassanii, D. didymus, D. laticonus, D. mammifera, D. penultima, D. prismatica, D. tetrathalamus, D. tubaria, D. violina, D. sp.


Citation: Didymocyrtis violina (Haeckel) Sanfilippo&Riedel 1980
taxonomic rank: species
Basionym: Cannartus violina
1887 Cannartus violina - Haeckel p. 538, pl. 39, fig. 10
1959 Cannartus violina - Riedel pl. 1, fig. 3
1973 Cannartus violina - Kling pl.7, fig. 10
1980 Didymocyrtis violina - Sanfilippo and Riedel
Taxonomic discussion: (Haeckel) 1887; Sanfilippo and Riedel 1980

Catalog entries: Cannartus violina

Original description: Pores of the shell subregular, circular, twice to three times as broad as the bars; eighteen to twenty on the half meridian, fourteen to sixteen on the half equator. Shell-wall in the "tropical zone" of both halves thickened. Polar tubes nearly cylindrical, about as long as the main axis, distal ends broken off.

Main axis 140µm, equatorial axis 90µm; meshes 8µm, bars 3µm; length of the polar tubes 120µm, breadth 20 to 30µm.
Remarks on original description: [Stratigraphic information for LM21 from Riedel, 1959b, p.287.
Haeckel includes a second figure, fig.10a, on pl.39, but does not mention it in the figure description.]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N 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

Kling, S. A. (1973). Radiolaria from the eastern North Pacific, Deep Sea Drilling Project, Leg 18. Initial Reports of the Deep Sea Drilling Project. 18: 617-671. gs

Riedel, W. R. (1959a). Oligocene and Lower Miocene Radiolaria in tropical Pacific sediments. Micropaleontology. 5(3): 285-302. gs

Sanfilippo, A. & Riedel, W. R. (1980). A revised generic and suprageneric classification of the Artiscins (Radiolaria). Journal of Paleontology. 54(5): 1008-1011. gs


Didymocyrtis violina compiled by the radiolaria@mikrotax project team viewed: 26-5-2024

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