Eusyringium lagena

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


Citation: Eusyringium lagena (Ehrenberg 1873)
Rank: species
Basionym: Eusyringium lagena
Taxonomic discussion: (Ehrenberg)1873 p.241; 1875 pl.3 fig.4 as Lithopera; Riedel & Sanfilippo 1970 p.; Foreman1973 p.436 pl.11 figs.4-5;Sanfilippo et al.1985 p.672

Catalog entries: Lithopera lagena

Original description: [Lageniform, smooth; cephalis ovate, with a horn, distinctly constricted, and with a longitudinal rib in the median hyaline area. Irregular, rare pores. Second segment ovate, oblong, dilated posteriorly, the surface densely covered with contiguous, irregular pores. (Translated from Latin by E.M.R. and W.R.R.))

Length 113µm, of cephalis 31µm. Maximum breadth 64µm.


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:


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, Physikalische Kl. 1875: 1-226. gs

Foreman, H. P. (1973a). 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

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


Eusyringium lagena compiled by the radiolaria@mikrotax project team viewed: 15-5-2021

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