rad_org Dictyophimus mawsoni img1149.jpg
rad_org Dictyophimus mawsoni img1591.jpg
rad_org Dictyophimus mawsoni img1149.jpg
rad_org Dictyophimus mawsoni img1591.jpg
1958 Dictyophimus mawsoni - Riedel p. 234, pl. 3, figs. 6,7
1968 Dictyophimus (?) mawsoni - Petrushevskaya p. 73-74, fig. 43
1975 Dictyophimus mawsoni - Chen pl. 19, figs. 1, 2
From Suzuki Paleotax db:
1958 Dictyophimus mawsoni n. sp. Riedel p. 234, pl. 3, figs. 6, 7
1967 Dictyophimus (?) mawsoni Riedel Petrushevskaya p. 76-77, text-fig. 43
1970 Dictyophimus mawsoni (Riedel) Nakaseko & Sugano pl. 2, fig. 8
1972 Lamprotripus mawsoni (Riedel) Petrushevskaya & Kozlova p. 534, pl. 29, fig. 15
1973 Dictyophimus mawsoni Riedel Bjørklund pl. 2, fig. i
1975 Dictyophimus mawsoni Riedel Chen p. 460, pl. 19, figs. 1, 2
1975 Lampromitripus mawsoni (Riedel) Petrushevskaya p. 592, pl. 12, fig. 8
1982 DIctyophimus mawsoni Riedel Nakaseko & Nishimura p. 98, pl. 47, fig. 3
1986 Dictyophimus mawsoni Riedel Yamauchi pl. 3, fig. 25
1992 Lamprotripus (?) mawsoni (Riedel) Sugiyama et al. p. 18-19, pl. 16, figs. 4-5b
2015 Lamprotripus mawsoni (Riedel) Matsuzaki et al. p. 66, fig. 7.25
Catalog entries: Dictyophimus mawsoni
type material: D. mawsoniOriginal description: Shell large, of heavy construction, spiny, generally subhemispherical in form. Cephalis cap-like, with subcircular pores and short, acute, thorn-like spines scattered over its surface. Apical horn stout, cylindro-conical, vertical or oblique. Collar stricture indistinct. Thorax subhemispherical with large subcircular or subangular pores separated by heavy intervening bars from which arise numerous acute, conical spines. Three ribs, which in some specimens are not distinct, extend along the entire length of the thoracic wall and terminate in three sub-parallel or divergent, stout, cylindro-conical feet. At the collar region, three spines extend inward from the shell-wall, but do not connect with each other; these apparently represent all that remains of the reduced internal spicular skeleton.
Remarks on original description: Apart from its occurrence in the B.A.N.Z.A.R.E. sediments, D. mawsoni has been found in no other locality except the far northern Pacific. It is thus apparently a bipolar cold-water species.
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:
Riedel, W. R. (1958). Radiolaria in Antarctic sediments. B.A.N.Z. Antarctic Research Expedition Reports. 6(10): 217-255. gs Missing or ambiguous references: Chen 1975; Petrushevskaya 1968;References:
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Lamprotripus mawsoni compiled by the radiolaria@mikrotax project team viewed: 22-7-2026
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