radiolaria - rads_cenozoic - Heliosoma watkinsi radiolaria - rads_cenozoic - Heliosoma watkinsi

Heliosoma watkinsi


Classification: rads_cenozoic -> Actinommidae -> Heliosoma -> Heliosoma watkinsi
Sister taxa: H. dispar, H. watkinsi

Taxonomy

Citation: Heliosoma watkinsi Keany 1979
taxonomic rank: species
Basionym: Heliosoma watkinsi Keany 1979
Synonyms:
1979 Heliosoma watkinsi - Keany pl.1, figs.6-10; pl.5, fig.2

From Suzuki Paleotax db:

1979 Heliosoma watkinsi n. sp. Keany p. 52-53, pl. 1, figs. 6-9, pl. 5, fig. 2
1981 Heliosoma watkinsi Keany Takahashi & Honjo p. 146, pl. 1, fig. 24

Catalog entries: Heliosoma watkinsi

Original description: Cortical shell thin-walled with large irregular pores of different size and shape, generally three to eight times as broad as the bars. Medullary shell generally one-fourth as large, with small regular hexagonal pores. Two shells connected by 30 to 50 irregularly disposed, circular, radial beams. Beams, generally not prolonged beyond cortical shell, have small irregularly spaced spines on surfaces. Projecting from surface of cortical shell, numerous secondary spines, simple and conical.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within Zanclean Stage (3.60-5.33Ma, base in Zanclean stage). Data source:

Plot of occurrence data:

References:

Keany, J. (1979). Early Pliocene radiolarian taxonomy and biostratigraphy in the Antarctic region. Micropaleontology. 25(1): 50-74. gs


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Heliosoma watkinsi compiled by the radiolaria@mikrotax project team viewed: 7-9-2024

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=206304 Go to Archive.is to create a permanent copy of this page - citation notes



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