radiolaria - rads_cenozoic - Hexastylus formosus radiolaria - rads_cenozoic - Hexastylus formosus

Hexastylus formosus


Classification: rads_cenozoic -> Actinommidae -> Hexastylidae -> Hexastylus -> Hexastylus formosus
Sister taxa: H. dimensivus, H. favulosus, H. formosus, H. thaletis, H. triaxonius, H. sp.

Taxonomy

Citation: Hexastylus formosus Blueford 1982
taxonomic rank: species
Basionym: Hexastylus formosus Blueford 1982
Synonyms:
1982 Hexastylus formosus - Blueford Pl. 3, fig. 8

From Suzuki Paleotax db:

1982 Hexastylus formosus n. sp. Blueford p. 197, pl. 3, figs. 7, 8

Catalog entries: Hexastylus formosus

Original description: Single shell, 100-120 µ in diameter, with three to six equal, bladed spines, 36-48 µ in length. Pores elliptical, 8-12 µ in diameter, irregularly arranged to form delicate meshwork. Larger pores to three times the diameter of smaller pores.
Remarks on original description: Occurs rarely and sporadically at Site 77, more abundantly at Site 289. There may be an upper limit in core 289-34. No other upper or lower limit has been determined[comment from RadWorld database]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Zanclean Stage (3.60-5.33Ma, top in Zanclean stage). Data source:
First occurrence (base): within Serravallian Stage (11.62-13.82Ma, base in Serravallian 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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Hexastylus formosus compiled by the radiolaria@mikrotax project team viewed: 7-12-2024

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