radiolaria - rads_cenozoic - Tholospyris gephyristes radiolaria - rads_cenozoic - Tholospyris gephyristes

Tholospyris gephyristes


Classification: rads_cenozoic -> Trissocyclidae -> Triospyridae -> Tholospyris -> Tholospyris gephyristes
Sister taxa: T. anthophora, T. baconiana, T. capoi, T. cortinisca, T. devexa, T. fornicata, T. gephyristes, T. infericosta, T. kantiana, T. macropora, T. mammillaris, T. procera, T. rhombus, T. scaphipes, T. tripodiscus, T. sp.

Taxonomy

Citation: Tholospyris gephyristes Hülsemann 1963
Taxonomic rank: species
Basionym: Tholospyris gephyristes
Synonyms:
1963 Tholospyris gephyristes - Hülsemann figs. 14-15
1998 Tholospyris gephyristes - Bjørklund et al. pl. 2, figs. 20-21
2003 Tholospyris (?) gephyristes - Bjørklund and Kruglikova pl. 6, fig. 18
2003 Tholospyris gephyristes - Cortese et al. p. 69 (not figured)

From Suzuki Paleotax db:

1963 Tholospyris gephyristes n. sp. Huelsemann p. 24-25, text-figs. 14, 15

Catalog entries: Tholospyris gephyristes

Original description: The shell consists of a bilocular cephalis with unequal, rounded pores and a small, fenestrated conical cupola which is prolonged into an apical spine. Three basal feet are prolongations of the dorsal and the paired lateral spines of the inner skeleton. Between their proximal portions a small amount of lattice-work connecting the spines may be present. From the lower part of the sagittal ring, where it is incorporated in the shell wall, arises a small vertical spine. There is a spine in the sagittal constriction on the dorsal side right below the cupola, like an elongation of the sagittal ring to the dorsal side. Another spine arises above the sagittal constriction on the ventral side; this spine does not originate in the constriction, but from a columella bridging the shallow groove. 

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"

Plot of occurrence data:

References:

Bjørklund, K. R. & Kruglikova, S. B. (2003). Polycystine radiolarians in surface sediments in the Arctic Ocean basins and marginal seas. Marine Micropaleontology. 49(3): 231-273. gs

Bjørklund, K. R., Cortese, G., Swanberg, N. & Schrader, H. J. (1998). Radiolarian faunal provinces in surface sediments of the Greenland, Iceland and Norwegian (GIN) Seas. Marine Micropaleontology. 35(1-2): 105-140. gs

Cortese, G., Bjørklund, K. R. & Dolven, J. K. (2003). Polycystine radiolarians in the Greenland-Iceland-Norwegian Seas: species and assemblage distribution. Sarsia. 88(1): 65-88. gs

Hülsemann, K. (1963). Radiolaria in plankton from the Arctic drifting station T-3,including the description of three new species. Arctic Institute of North America Technical Paper. 13: 52-. gs


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Tholospyris gephyristes compiled by the radiolaria@mikrotax project team viewed: 19-11-2025

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