radiolaria - rads_cat - Bisphaerocephalina radiolaria - rads_cat - Bisphaerocephalina

CATALOG OF ORIGINAL DESCRIPTIONS: Bisphaerocephalina Petrushevskaya 1965

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 -> B -> Bisphaerocephalina
Other pages this level: Bathrocalpis, Bathropyramis, Bathysphaera, Bekoma, Bekomiforma, Belonozoum, Bisphaerocephalina, Bisphaerocephalus, Botryacantha, Botryocampe, Botryocanna, Botryocella, Botryocylinder, Botryocyrtis, Botryometra, Botryopera, Botryopyle, Botryostrobus, Brachiospyris, Buccinosphaera, Buryella

Bisphaerocephalina armata Petrushevskaya 1965

Bisphaerocephalina

Citation: Bisphaerocephalina Petrushevskaya 1965
Taxonomic rank: genus
Type species: Bisphaerocephalina armata Petrushevskaya 1965
Described on page(s) : 91
Family (traditional): Cannobotryidae

Current identification:


Original Description

Two segments well-separated. First segment with 3 fundamental chambers. The cephalic chamber is closely related to the ante-cephalic chamber, the walls of both chambers having the same structure. The ante-cephalic chamber is, however, larger and bears a strong apical horn. The post-cephalic chamber is small and reduced to a more or less developed tube related to the Vert spine. Inside the shell, the A, D, Lr, and Ll spines are fused with the basal plate and with the septa between the chambers of the first segment. Basal plate simple, almost without additional formations and of a type very close to that of Lithobotrys geminata (fig.1, III). The A, D, Lr and Ll spines protrude outside of the shell as strong and sharp appendages. Shell wall smooth with small circular pores. (In Russian. Translation by J.P.C.)]

Etymology:
No information given"

References:

Petrushevskaya, M. G. (1965a). Osobennosti Konstruksiy skeleta Radiolyariy Botryoidae (Otr. Nassellaria). Trudy Zoologicheskogo Instituta Academiya Nauk SSSR. (35): 79-118. gs O


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Bisphaerocephalina compiled by the radiolaria@mikrotax project team viewed: 8-2-2026

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