radiolaria - rads_cenozoic - Clathrocyclas aurelia

Clathrocyclas aurelia


Classification: rads_cenozoic -> Theoperidae -> Anthocyrtidae -> Clathrocyclas -> Clathrocyclas aurelia
Sister taxa: C. alcmenae, C. aurelia, C. australis, C. cassiopeiae, C. semeles, C. universa, C. sp.

Taxonomy

Citation: Clathrocyclas aurelia Clark & Campbell 1945
Rank: species
Basionym: Clathrocyclas aurelia

Taxonomic discussion:
Clark and Campbell 1945 p. 46 pl. 6 fig. 30; Caulet 1991 (ODP 119 SR) pl.2 fig.8

Catalog entries: Clathrocyclas aurelia

Original description: Wide conical-campanulate shell having a flat marginally shouldered abdomen; apical horn terminal, single, rod like (distally broken), and basally simple; cephalis subhemispherical, short (less than 0.14 total length), and with the cervical stricture marked by change in lateral contour (its basal diameter little greater than the length); thorax generally and widely subconical (75°), with mild asymmetry, and swelling near the middle, the basal diameter great (0.73 total length), and the length equal to the basal diameter; abdomen wide, generally ringlike, around the base of the thorax with sharp stricture (lumbar), and distally bending rather suddenly to form a short circular rim (about the same in height as the cephalis), the free edge of this rim much torn so that the marginal teeth presumed to be present are lost; pores of cephalis few (not more than 16), well separated, and small (2.2?m or less); pores of thorax generally graded from small at the neck to large at the base with a few odd tiny ones subcervically, generally subelliptical or even subpolygonal especially above the base, rather closely set, and comparatively numerous (over 100); pores of abdomen in 3 transverse rows which are fairly regular (more so than in the thorax), and 1 row is along the rim; wall generally hyaline.
Remarks on original description: The authors here list Clathrocyclas aurelia under the subgeneric name Clathrocycloma and include the subgeneric name in the species name.[comment from RadWorld database]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"

Plot of occurrence data:

References:

Caulet, J. (1991). Radiolarians from the Kerguelen Plateau, Leg 119. Proceedings of the Ocean Drilling Program, Scientific Results. 119: 513-546. gs

Clark, B. L. & Campbell, A. S. (1945). Radiolaria from the Kreyenhangen Formation near Los Banos, California. Geological Society of America, Memoir. 1-66. gs


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Clathrocyclas aurelia compiled by the radiolaria@mikrotax project team viewed: 20-9-2021

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