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Pseudorbitoides trechmanni Douvillé, 1922
Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 746, Figs. 1-10: U. Cretaceous, Green Island, Jarnaica. 1, Centered vertical section of megalospheric neotype, equatorial layer appearing doubled near periphery, x 27; 2, 3. equatorial section, central part in transmitted light, x 30 [stated to be x 300], and same section in reflected light, x 40; 4, centered horizontal section of megalospheric test with quadriserial juvenarium, traces of radial elements in upper left, and showing two small adauxiliary chambers (a), x 77; 5, horizontal section of microspheric test showing small uniserial juvenarium, x 59; 6, 7, exterior of topotypes, x 20; 8, nearly centered vertical section, microspheric, x 15; 9, vertical section of microspheric test near peripheral margin, pseudorbitoid layer having become a complex structure of radial passages with radial elements (b) like those of Historbitoides, x 49; 10, central vertical section of microspheric test showing sudden thickening of pseudorbitoid layer in lower part of figure, x 29 (1, 2, from Brönnimann, 1955; 3, 6, 7, from Vaughan and Cole, 1943; 4, 5, 8-10, from Krijnen, 1972).
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added on 2023-12-0446 viewsForaminifera taxaDigital photo, entire species Pseudorbitoides trechmanni Douvillé, 1922 †checked Le Coze, François 2023-12-04
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