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Amphistegina radiata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 111
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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. This specimen was identified by Todd as Amphistegina lessonii (pl. 11 fig. 4). It is a typical A. radiata (pers comm. Pamela Hallock Muller, pers. comm. June 2019).
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Larsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. Israel Journal of Earth-Sciences. 25: 1-26. page(s): p. 6 pl. 2 fig. 1-5
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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. Identified by Todd (1965) as A. radiata (pl. 14 fig. 1-3), not A. radiata Opinion of Hallock Muller (2019) pers. comm.: " I don't think any of these are A. radiata; 1 may be A. bicirculata, 2. A. papillosa, and 3 is A. bicirculata"
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found 12/2007 near beach at 2m water-depth of Hurghada/Egypt Red Sea Source: www.foraminifera.eu (http://www.foraminifera.eu) note: Opinion of Hallock Muller (2019) pers. comm.
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Larsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. Israel Journal of Earth-Sciences. 25: 1-26. page(s): p. 4 pl. 3 fig. 1-5
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Brady, H. B. (1876). A monograph of Carboniferous and Permian Foraminifera. Monograph of the Palaeontographical Society. vol. 30: 1-166., available online at (http://www.biodiversitylibrary.org/item/113655#page/39/) page(s): p. 146 pl. 11 fig. 7