radiolaria - rads_cenozoic - Acanthosphaera bernardi radiolaria - rads_cenozoic - Acanthosphaera bernardi

Acanthosphaera bernardi


Classification: rads_cenozoic -> Actinommidae -> Actinommidae (ss) -> Acanthosphaera -> Acanthosphaera bernardi
Sister taxa: A. actinota, A. bernardi, A. castanea, A. dodecastyla, A. macropora, A. pinchuda, A. tenuis, A. sp.

Taxonomy

Citation: Acanthosphaera bernardi Blueford 1982
taxonomic rank: species
Basionym: Acanthosphaera bernardi Blueford 1982
Synonyms:
1982 Acanthosphaera bernardi - Blueford Pl. 2, figs. 2, 3

From Suzuki Paleotax db:

1982 Acanthosphaera bernardi n. sp. Blueford p. 195, pl. 2, figs. 2, 3
1996 Acanthosphaera bernardi Blueford Chen & Tan p. 169, pl. 7, fig. 3
1998 Acanthosphaera bernardi Blueford Tan p. 148-149, text-fig. 136
1999 Acanthosphaera bernardi Blueford Tan & Chen p. 163, text-fig. 5.71

Catalog entries: Acanthosphaera bernardi

Original description: Shell single, 100-150 µ in diameter. Surface rough with 20-40 long-bladed spines having serrated edges. Pores elliptical, tending to be subdivided, about 11 µ in diameter, closely packed, 11 µ between pore centers. Large pores less than twice diameter of smaller pores.
Remarks on original description: Examination of Sites 77, 289, and 66 indicates that Acanthosphaera bernardi has a lower limit in core 77B-17, core 289-31, and core 66-5. In all cores, a small form with many pitted spines occurs near the base of the lower limit. No upper limit is distinguishable.[comment from RadWorld database]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Tortonian Stage (7.25-11.62Ma, top in Tortonian stage). Data source:
First occurrence (base): within Tortonian Stage (7.25-11.62Ma, base in Tortonian stage). Data source:

Plot of occurrence data:

References:

Blueford, R (1982). Miocene actinommid Radiolaria from the equational Pacific. Micropaleontology. 28(2): 189-213. gs


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Acanthosphaera bernardi compiled by the radiolaria@mikrotax project team viewed: 12-10-2024

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