From Suzuki Paleotax db:
1874 Eucyrtidium acephalum n. sp. Ehrenberg p. 224-225
1876 Eucyrtidium acephalum Ehrenberg Ehrenberg p. 70-71, pl. 11, fig. 5
1887 Lithomitra (Lithomitrella) acephala (Ehrenberg) Haeckel p. 1484
1971 Lithomitra acephalum (Ehrenberg) Petrushevskaya pl. 122, fig. 9
1977 (non viso) Lithamphora aff. Eucyrtidium acephalum Ehrenberg Kruglikova pl. 125, fig. 21
1977 Siphocampe acephala (Ehrenberg) Nigrini p. 254-255, pl. 3, fig. 5
1979 Lithomitrella acephala (Ehrenberg) Kozlova & Petrushevskaya p. 150, figs. 380, 409
1979 Lithomitrella aff. acephala (Ehrenberg) Kozlova & Petrushevskaya fig. 487
1981 Siphocampe acephala (Ehrenberg) De Wever pl. 4, fig. 12
1992 Siphocampe acephala (Ehrenberg) Takemura p. 743, pl. 6, fig. 9
1999 Siphocampe cf. acephala (Ehrenberg) O'Connor p. 36, pl. 9, fig. 41
2009 Eucyrtidium acephalum Ehrenberg [Ehrenberg collection] Ogane et al. pl. 83, fig. 7a-e
Catalog entries: Eucyrtidium acephalum
Original description: [Cylindrical, the apex rounded and rather 225 narrower; the segments (10, including the frontal one) very slightly constricted, narrow, flat, with approximately 11 - 12 conspicuous (opposite), parallel longitudinal lines in each segment. Length 125 µ, maximum breadth 49 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:
Siphocampe acephala compiled by the radiolaria@mikrotax project team viewed: 9-10-2024
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