From Suzuki Paleotax db:
1887 Cromyomma (Cromyommetta) villosum n. sp. Haeckel p. 261, pl. 30, fig. 2
1991 Cromyomma villosum Haeckel Takahashi p. 70, pl. 11, figs. 10, 11
Catalog entries: Cromyomma villosum
Original description: Radial proportion of the four spheres = 1: 2: 4: 5. Outer cortical shell thick walled, densely covered with innumerable bristle-shaped radial spines, half as long as the radius. Pores regular, circular, double-edged, of the same breadth as the bars; ten to twelve on the radius. The thick outer shell is so dark, that the outlines only of the other three shells can be seen.
Remarks on original description: Haeckel listed Cromyomma villosum under the subgeneric name Cromyommetta, but did not include the subgeneric name in the species name.[comment from RadWorld database]
Geological Range:
Last occurrence (top): Extant. Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"
Plot of occurrence data:
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Cromyomma villosum compiled by the radiolaria@mikrotax project team viewed: 21-6-2025
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