radiolaria - rads_cat - Thecosphaera pseudojaponica radiolaria - rads_cat - Thecosphaera pseudojaponica

CATALOG OF ORIGINAL DESCRIPTIONS: Thecosphaera pseudojaponica Nakaseko 1971

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 -> T -> Thecosphaera -> Thecosphaera pseudojaponica
Other pages this level: << < T. floribunda, T. grecoi, T. icosactis, T. japonica, T. larnacium, T. leptococcos, T. lophophilla, T. magneporata, T. maxima, T. melitomma, T. micropora, T. microsphaera, T. miocenica, T. paroniana, T. phaenaxonia, T. pseudojaponica, T. radians, T. raripora, T. rotunda, T. saccoi, T. sanfilippoae, T. scabra scabra, T. scabra secunda, T. spiralis, T. stylodendra, T. sublicia, T. tochigiensis, T. triglobulata, T. triplodictyon, T. zittelii

Thecosphaera pseudojaponica

Citation: Thecosphaera pseudojaponica Nakaseko 1971
Taxonomic rank: species

Current identification/main database link: Thecosphaera pseudojaponica Nakaseko 1972


Original Description

Shell entirely globular, rather small, with rough surface and three concentric spheres; outer shell with moderately thick wall, surface with about 10 pores across the diameter; its pores fairly small, circular, regular in arrangement, uniform in size and shape, and with hexagonal frames; secondary inner shell about 0.43 of the outer shell in diameter, with thin wall; primary inner shell about 0.2 of the outer shell, very small; three concentric spheres connected by many radial beams. 

Size:
Diameter of the outer shell, 90; of the secondary inner shell, 40µ; of the inner shell, 16µ. 

Extra details from original publication
Remarks: This species is considerably similar to Thecosphaera japonica described above in diameter, the pore pattern of the outer shell, shape and number of radial beams. Also it resembles T.japonica in the pore pattern of the inner shell, but differs in ratio of outer shell and inner shell.

References:

Nakaseko, K (1971a). On some species of the genus Thecosphaera from the Neogene formations, Japan. Science Reports, College of General Education, Osaka University. 20(2): 59-66. gs


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Thecosphaera pseudojaponica compiled by the radiolaria@mikrotax project team viewed: 11-10-2026

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