radiolaria - rads_cat - Otosphaera annikae radiolaria - rads_cat - Otosphaera annikae

CATALOG OF ORIGINAL DESCRIPTIONS: Otosphaera annikae Petrushevskaya & Kozlova 1972

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: rads_cat -> O -> Otosphaera -> Otosphaera annikae
Other pages this level: O. annikae, O. auriculata, O. polymorpha

Otosphaera annikae

Citation: Otosphaera annikae Petrushevskaya & Kozlova 1972
taxonomic rank: species

Current identification/main database link: Otosphaera annikae Petrushevskaya & Kozlova 1972

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.

Extra details from original publication
Distinguishing features: It differs from O. polymorpha by having two (instead of three) tubes. The tubes are disposed (as in O. auriculata, described by C. Nigrini, 1967, pi. 1, fig. 7) on the opposite poles of the shell. The wall of the tube is perforated on the proximal end and stretched into a long needle on the distal end. In O. auriculata (Plate 9, Figure 2) there are no such needles on the ends of the tubes. O. annikae is characteristic of the early Dorcadospyris alata Zone. The species is named for Annika Sanfilippo, who, together with W. R. Riedel, first illustrated this species


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: 3-3-2024

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