- Type images:
x: E. acanthocephalum
From Suzuki Paleotax db:
1874 Eucyrtidium acanthocephalum n. sp. Ehrenberg p. 225
1876 Eucyrtidium acanthocephalum Ehrenberg Ehrenberg p. 70-71, pl. 9, fig. 8
1887 Lophocorys acanthocephala (Ehrenberg) Haeckel p. 1421
1972 Calocycletta acanthocephala (Ehrenberg) Petrushevskaya & Kozlova p. 544, pl. 35, figs. 5-7
1974 Calocycletta acanthocephala (Ehrenberg) Johnson p. 550, pl. 6, fig. 3
1975 Calocycletta acanthocephala (Ehrenberg) Ling p. 730, pl. 12, fig. 9
2009 Eucyrtidium acanthocephalum Ehrenberg [Ehrenberg collection] Ogane et al. pl. 86, fig. 5a-e
Catalog entries: Eucyrtidium acanthocephalum
x: E. acanthocephalumOriginal description: [3-segmented, with rough surface, with subequal pores arranged in quincuncial rows. Cephalis oblong, with long terminal spine having at the base a corona of 3 smaller ones, and without distinct stricture. Second segment lageniform, strongly swollen in the middle. Third segment narrower than the second, short, truncate. Total length 225 µ, of the cephalis 41 µ, second segment 80 µ, of the third segment 23 µ. (Translated from Latin by E.M.R. and W.R.R.)]
Similar species
Geological Range:
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P age group"
Plot of occurrence data:
References:
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Calocycletta acanthocephala compiled by the radiolaria@mikrotax project team viewed: 26-1-2025
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203399 Go to Archive.is to create a permanent copy of this page - citation notes |
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