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Roughly spherical foraminiferan with coarse perforations on the ventral surface (above right). The dorsal surface is composed of a brownish spiral of increasing sized flat chambers; the whole specimen appears to be a benthic foraminiferan with an inflated chamber (similar to those in planktonic species) on the ventral side. Our specimens have been examined by an expert (S. Richardson) and appear similar to the dispersal form of the genus Tretomphalus, a shallow-water benthic group. Most, though not all, are empty shells.
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Roughly spherical foraminiferan with coarse perforations on the ventral surface (above right). The dorsal surface is composed of a brownish spiral of increasing sized flat chambers; the whole specimen appears to be a benthic foraminiferan with an inflated chamber (similar to those in planktonic species) on the ventral side. Our specimens have been examined by an expert (S. Richardson) and appear similar to the dispersal form of the genus Tretomphalus, a shallow-water benthic group. Most, though not all, are empty shells.
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Discoanomalina vermiculata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 97
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Image source: Todd, R. 1965. The Foraminifera of the Tropical Pacific Collections of the ”Albatross”, 1899-1900. Part 4. Rotaliform families and planktonic families [End of Volume]. Bull. U.S. Nation. Mus 161: v+139 pp.+28 pls.
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Rosalina bradyi sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 86
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Northland, Cavalli Islands, 3m depth, Plate 11 in Hayward, B.W., Grenfell, H.R., Reid, C.M., Hayward, K.A. 1999. Recent New Zealand shallow-water benthic Foraminifera: Taxonomy, ecologic distribution, biogeography, and use in paleoenvironmental assessment. Institute of Geological and Nuclear Sciences Monograph 21, 258 p.
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Marlborough, Queen Charlotte Sound, 7 m depth, Plate 11 in Hayward, B.W., Grenfell, H.R., Reid, C.M., Hayward, K.A. 1999. Recent New Zealand shallow-water benthic Foraminifera: Taxonomy, ecologic distribution, biogeography, and use in paleoenvironmental assessment. Institute of Geological and Nuclear Sciences Monograph 21, 258 p.
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Image source: Todd, R. 1965. The Foraminifera of the Tropical Pacific Collections of the ”Albatross”, 1899-1900. Part 4. Rotaliform families and planktonic families [End of Volume]. Bull. U.S. Nation. Mus 161: v+139 pp.+28 pls.
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Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 271 n° 1 Model n° 69
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Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 271 n° 1 Model n° 69
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Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 271 n° 1 Model n° 69
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Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 271 n° 1 Model n° 69 Atlas pl. 13 fig. 1-4
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Rosalina globularis sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 86
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Image source: Todd, R. 1965. The Foraminifera of the Tropical Pacific Collections of the ”Albatross”, 1899-1900. Part 4. Rotaliform families and planktonic families [End of Volume]. Bull. U.S. Nation. Mus 161: v+139 pp.+28 pls.
