radiolaria - rads_cenozoic - Eusyringium fistuligerum

Eusyringium fistuligerum

Classification: rads_cenozoic -> Theoperidae -> Theoperidae (ss) -> Eusyringium -> Eusyringium fistuligerum
Sister taxa: E. fistuligerum, E. lagena, E. tubulus, E. typicum, E. woodsidensis, E. sp.


Citation: Eusyringium fistuligerum (Ehrenberg 1873)
Rank: species
Basionym: Eucyrtidium fistuligerum Ehrenberg 1873
Taxonomic discussion: (Ehrenberg)1873 p.229;1875 p.70 pl.9 fig.3; Riedel & Sanfilippo 1970 p.527 pl.8; Sanfilippo et al.1985; Takemura 1992 (122SR) p746 pl7 fig5-6

Catalog entries: Eucyrtidium fistuligerum

Original description: [3-segmented, smooth; cephalis globose and slightly porous, frontal spine strong, median rib delicate. Second segment slightly broader, subcampanulate. Third segment contracted at both ends, strongly swollen in the middle, passing into a long, open, porous tube, with numerous irregular pores, larger and biserial in the tube. (Translated from Latin by E.M.R. and W.R.R.)]

Length without spine 205um, of spine 25 µm, of cephalis 23 µm, of second segment 29 µm, of third segment 150 µm, of tube 62 µm. Approx. 3 pores in 23µm. Maximum width 90µm. Distinguishing characters (rw): Compare E. sipho and E. tubulus.
Remarks on original description: [New name Eusyringium fistuligerum (Ehrenberg) Riedel, 1957a]




Biogeography and Palaeobiology

Similar species: fistuligerum

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:


Ehrenberg, C. G. (1873a). Grössere Felsproben des Polycystinen-Mergels von Barbados mit weiteren Erläuterungen. Monatsberichte der Koniglichen Preussische Akademie der Wissenschaften zu Berlin. 1873: 213-263. gs

Ehrenberg, C. G. (1876). Forsetzung der Mikrogeologischen Studien als Gesammt Ubersicht der mikroskopischen Palaontologie gleichartig analysierter Gebiegsarten der Erde, mit specieller Rucksicht aus den Polycystinen Mergel von Barbados. Abhandlungen der Koniglichen Akademie der Wissenschaften zu Berlin. 1875: 1-226. gs

Riedel, W. R. & Sanfilippo, A. (1970). Radiolaria, Leg. 4 DSDP. Initial Reports of the Deep Sea Drilling Project. 4: 503-575. gs

Sanfilippo, A., Westberg-Smith, M. J. & Riedel, W. R. (1985). Cenozoic Radiolaria. In, Bolli, H. M. , Saunders, J. B. & Perch-Nielsen K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge 631-712. gs

Takemura, A. (1992). Radiolarian Paleogene biostratigraphy in the southern Indian Ocean, Leg 120. Proceedings of the Ocean Drilling Program, Scientific Results. 120: 735-756. gs


Eusyringium fistuligerum compiled by the radiolaria@mikrotax project team viewed: 6-7-2022

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