- Type images:
x: E. penicillus
From Suzuki Paleotax db:
1887 Elatomma (Elatommura) penicillus n. sp. Haeckel p. 243
1984 Haeckeliella penicillus (Haeckel) Nishimura & Yamauchi p. 27-28, pl. 12, figs. 7a, 7b, 8, pl. 13, figs. 5, 9, pl. 50, figs. 1-4
1991 Elatomma penicillus Haeckel Takahashi p. 69, pl. 9, figs. 9, 10
Catalog entries: Elatomma penicillus
x: E. penicillusOriginal description: Cortical shell thin walled, with irregular, polygonal pores, twice to four times as broad as the bars, connected with the medullary shell by twenty (or more ?) very thin beams. These are prolonged outside into twenty straight, three-sided prismatic, radial spines as long as the radius, with a brush like bunch of six to nine short, irregularly ramified branches at the end. Medullary shell very delicate (half as broad as the outer), with regular, hexagonal meshes and thread-like bars.
Diameter of the outer shell 0.15, inner 0.08; length of the spines 0.08. [dimensions in mm]
Remarks on original description: Haeckel listed Elatomma penicillus under the subgeneric name Elatommura, but did not include the subgeneric name in the species name.
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:
References:
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Elatomma penicillus compiled by the radiolaria@mikrotax project team viewed: 21-6-2025
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