radiolaria - rads_cat - Amphymenium challengerae radiolaria - rads_cat - Amphymenium challengerae

CATALOG OF ORIGINAL DESCRIPTIONS: Amphymenium challengerae Weaver 1983

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 -> A -> Amphymenium -> Amphymenium challengerae
Other pages this level: A. amphistylium, A. challengerae, A. connicinum, A. elegans, A. ellipticum, A. fusiforme, A. monstrosum, A. pupula, A. romboideum, A. splendiarmatum, A. zygartus

Amphymenium challengerae

Citation: Amphymenium challengerae Weaver 1983
taxonomic rank: species

Current identification/main database link: Amphymenium challengerae Weaver 1983


Original Description

Shell with two opposite segmented arms generally consisting of 4 to 5 distinct segments which are convex distally. Each arm segment penetrated by internal spines as basic framework.; each segment covered by lattice work of circular to subcircular pores. Internal spines extend beyond shell segments as short projections. Arms arise from central structure composed of 2 inner spherical shells and 2 outer oblate spheroidal shells, all smooth and connected by numerous beams. In well-preserved specimens a patagium occurs around central structure and most chambered arm segments.

Size:
Total length, 220-160m; length of arm, 75-95µm; maximum width of arm, 90-105µm; length of central structure, 85-100µm; width, 75-95µm. Measurements based on 25 specimens from 540cm in Eltanin Core 16-4.

References:

Weaver, F. M. (1983). Cenozoic radiolarians from the southwest Atlantic, Falkland Plateau region, Deep Sea Drilling Project Leg 71. Initial Reports of the Deep Sea Drilling Project. 71: 667-686. gs


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Amphymenium challengerae compiled by the radiolaria@mikrotax project team viewed: 9-9-2024

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