radiolaria - rads_cenozoic - Otosphaera annikae radiolaria - rads_cenozoic - Otosphaera annikae

Otosphaera annikae

Classification: rads_cenozoic -> Collosphaeridae -> Otosphaera -> Otosphaera annikae
Sister taxa: O. annikae, O. auriculata, O. tenuissima, O. sp.


Citation: Otosphaera annikae Petrushevskaya & Kozlova 1972
taxonomic rank: species
Basionym: Otosphaera annikae
1972 Otosphaera annikae - Petrushevskaya & Kozlova p. 515, pl. 9, fig. 1

Catalog entries: Otosphaera annikae

Original description: Description based on 24 specimens from 139-3-CC, 139-4-CC, 140-2-2, 142-9-1, 88-100 cm. The smooth wall is perforated by rounded pores. The diameter of the pores is equal to or less than the interval between them. The rounded shell (about 120-140μ in diameter) is very much the same as in tne type species of the genus.


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:


Petrushevskaya, M. G. & Kozlova, G. E. (1972). Radiolaria: Leg 14, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 14: 459-648. gs O


Otosphaera annikae compiled by the radiolaria@mikrotax project team viewed: 17-7-2024

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