radiolaria - rads_cenozoic - Acrosphaera lappacea radiolaria - rads_cenozoic - Acrosphaera lappacea

Acrosphaera lappacea


Classification: rads_cenozoic -> Collosphaeridae -> Acrosphaera -> Acrosphaera lappacea
Sister taxa: A. arktios, A. australis, A. collina, A. cyrtodon, A. flammabunda, A. labrata, A. lappacea, A. mercurius, A. murrayana, A. pseudarktios, A. setosa, A. spinosa, A. transformata, A. trepanata, A. sp.

Taxonomy

Citation: Acrosphaera lappacea (Haeckel) Johnson&Nigrini 1980
Taxonomic rank: species
Basionym: Xanthiosphaera lappacea
Synonyms:
1887 Xanthiosphæra lappacea - Haeckel p. 120, pl. 8, figs. 10-11
1967 Polysolenia lappacea - Nigrini p. 16; pl. 1, figs. 3a, b
1979 Polysolenia lappacea - Nigrini and Moore pl. 2, figs. 3a-b
1991 Acrosphaera spinosa lappacea - Takahashi pl. 1, fig. 16

From Suzuki Paleotax db:

1887 Xanthiosphaera lappacea n. sp. Haeckel p. 120, pl. 8, fig. 10 (not fig. 11)
1887 Xanthiosphaera lappacea n. sp. Haeckel p. 120, pl. 8, fig. 11 (not fig. 10)
1905 Xanthiosphaera lappacea Haeckel Brandt p. 338, pl. 10, figs. 21-23
1906 Acrosphaera lappacea Haeckel [sic] Hilmers p. 61-63
1917 Acrosphaera lappacea Haeckel [sic] Popofsky p. 258-259, text-fig. 21
1967 Polysolenia lappacea (Haeckel) Nigrini p. 16-18, pl. 1, fig. 3a, 3b
1970 Polysolenia lappacea (Haeckel) Nigrini p. 166, pl. 1, fig. 3
1971 Acrosphaera lappacea (Haeckel) Strelkov & Reshetnyak p. 342, table 6, fig. 44
1974 Polysolenia lappacea (Haeckel) Ieda pl. 1, fig. 6
1974 Polysolenia lappacea (Haeckel) Johnson & Knoll pl. 1, fig. 2
1978 Acrosphaera lappacea (Haeckel) Reshetnyak & Runeva p. 97, 99, pl. 1, figs. 7, 8
1978 Polysolenia lappacea (Haeckel) McMillen & Casey pl. 1, fig. 7a, 7b
1979 Polysolenia lappacea (Haeckel) Nigrini & Moore S15-16, pl. 2, figs. 3a, 3b
1980 Acrosphaera lappacea (Haeckel) Goll p. 436, pl. 1, fig. 18
1980 Acrosphaera lappacea (Haeckel) Johnson & Nigrini p. 119, text-fig. 3b, pl. 1, fig. 2
1984 Acrosphaera lappacea (Haeckel) Nishimura & Yamauchi p. 17, pl. 1, figs. 15, 18
1986 Acrosphaera lappacea (Haeckel) Yamauchi pl. 1, fig. 5
1986 Polysolenia lappacea (Haeckel) Morley & Kohl pl. 1, fig. 4
1987 Polysolenia lappacea (Haeckel) Dworetzky & Morley pl. 1, fig. 1
1989 Siphonosphaera (Polysolenia) lappacea (Haeckel) Menshutkin & Vishnevskaya p. 94, fig. 42
1990 Xanthiosphaera lappacea Haeckel Fujioka pl. 38, fig. 3
1991 Acrosphaera spinosa (Haeckel) lappacea (Haeckel) Takahashi p. 54, pl. 1, figs. 14, 16
1994 Acrosphaera lappacea (Haeckel) Haslett p. 130, pl. 1, fig. 5
1996 Acrosphaera lappacea (Haeckel) Chen & Tan p. 158-159, pl. 2, figs. 17, 18, pl. 37, figs. 1, 2
1998 Xanthiosphaera lappacea Haeckel Tan p. 121, text-fig. 105
Taxonomic discussion: (Haeckel) 1887 as Xantiosphaera; Hull, 1993 (ODP 136 SR), pl 1 fig 11

Catalog entries: Xanthiosphaera lappacea

Original description: Inner shell spherical or subspherical, with very small roundish pores, quite irregularly scattered, one-fourth to three-fourth as broad as their bars. Ten to twenty pores in the half meridian of the shell. From its surface arise in an extremely irregular and variable manner numerous oblique spines, often curved, often lamellar, and perforated by pores, sometimes hollow, fenestrated cones. At different distances from the surface these spines send out lateral curved branches, which by communications form the delicate and very irregular network of the outer shell. This network is often incomplete and very unlike that of the inner shell, with large polygonal meshes, six to eighteen in the half meridian of the shell. Surface of the outer shell covered with numerous small, curved, and oblique spines, prolongations of the inner spines, but scarcely one-third to one-half as long as these. The radius of the inner shell bears to that of the outer a ratio = 3: 4.

Diameter of the inner shell 0.08 to 0.12, of the outer 0.11 to 0.15; pores of the inner shell 0.001 to 0.009, of the outer 0.01 to 0.04; length of the outer spines 0.005 to 0.009. [dimensions in mm]
Remarks on original description: [Stratigraphic information for LM21 from Riedel, 1959, p.287.]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

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:

Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 18: 1-1803. gs O

Hull, D. M. (1993). Quaternary, Eocene, and Cretaceous Radiolarians from the Hawaiian Arch, Northern Equatorial Pacific Ocean. Proceedings of the Ocean Drilling Program, Scientific Results. 136: 3-25. gs

Nigrini, C. A. & Moore, T. C. Jr. (1979). A guide to modern Radiolaria. Cushman Foundation for Foraminiferal Research, Special Publication. 16: 1-260. gs O

Nigrini, C. A. (1967). Radiolaria in pelagic sediments from the Indian and Atlantic Oceans. Bulletin of the Scripps Institution of Oceanography. 11: 1-125. gs

Takahashi, K. (1991). Radiolaria: Flux, ecology, and Taxonomy in the Pacific and Atlantic. Ocean Biocoenosis Series. 3: 1-301. gs


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Acrosphaera lappacea compiled by the radiolaria@mikrotax project team viewed: 15-5-2025

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