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.
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:
Otosphaera annikae compiled by the radiolaria@mikrotax project team viewed: 4-12-2023
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