radiolaria - rads_cenozoic - Spongatractus pachystylus <title>radiolaria - rads_cenozoic - Spongatractus pachystylus

Spongatractus pachystylus

Classification: rads_cenozoic -> Spongodiscidae -> Sponguridae -> Spongatractus -> Spongatractus pachystylus
Sister taxa: S. balbis, S. pachystylus, S. sp.


Citation: Spongatractus pachystylus (Ehrenberg 1873)
Rank: species
Taxonomic discussion: (Ehrenberg) 1873; 1875; Sanfilippo and Riedel 1973; Sanfilippo & Riedel 1985

Catalog entries: Spongosphaera pachystyla

Original description: [Sphere oblong-globose, spongy, with thorny surface, with an obscure median nucleus, and irregular pores not in rows; with two opposite spines strongly thickened and slightly sulcate, acute terminally. Length without spines 185 µ, of a larger spine 135 µ. Width 125 µ. Diameter of nucleus 41 µ. Width of a spine 41 µ. (Translated from Latin by E.M.R. and W.R.R.)]




Biogeography and Palaeobiology

Similar species


Geographic distribution


Phylogenetic relations

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. (1874b). Grössere Felsproben des Polycystinen-Mergels von Barbados mit weiteren Erläuterungen. Monatsberichte der Koniglichen Preussische Akademie der Wissenschaften zu Berlin. 1873: 213-263. gs V O

Sanfilippo, A. & Riedel, W. R. (1973). Cenozoic Radiolaria (exclusive of theoperids, artostrobiids and amphipyndacids) from the Gulf of Mexico, Deep Sea Drilling Project Leg 10. Initial Reports of the Deep Sea Drilling Project. 10: 475-608. gs O

Sanfilippo, A. & Riedel, W. R. (1985). Cretaceous Radiolaria. In, Bolli, H. M. , Saunders, J. B. & Perch-Nielsen K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge 573-630. gs


Spongatractus pachystylus compiled by the radiolaria@mikrotax project team viewed: 30-1-2023

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