L_and_T-1957 pl61-06.JPG
Olsson_etal_99_pl15_f01-3.jpg
This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
L_and_T-1957 pl61-06.JPG
Olsson_etal_99_pl15_f01-3.jpgLinked specimens: USNM-5879
Current identification/main database link: Acarinina strabocella (Loeblich and Tappan 1957)
Remarks: Globoroialia strabocella, new species, differs from G. apanthesma, new species, in the more elevated It differs from Globigerina mckannai White in being somewhat more compressed, with less globular chambers and a more extraumbilical aperture. G. mckannai may have been ancestral to the present species.
Original Description
Test free, of medium size, trochospiral, sides moderately convex, umbilical shoulder rounded, umbilicus broad and open, periphery broadly rounded, peripheral outline lobulate; chambers increasing gradually in size as added, of greater breadth than height, 4 per whorl in the early stages, increasing to 5 or 6 per whorl in the adult, early whorls somewhat elevated above the level of the final whorl, each successive chamber on the spiral side added somewhat below the level of that preceding, resulting in an imbricated appearance; sutures distinct, depressed, curved and oblique on the spiral side, radial and nearly straight on the umbilical side; wall calcareous, finely perforate, surface finely spinose, especially on the umbilical side; aperture an interiomarginal, extraumbilical-umbilical opening extending to the periphery.
Size: Holotype is 0.33 mm in greatest diameter.
Etymology: The specific name is from the Latin strabus, oblique, and cella, chamber, referring to the oblique attachment of successive chambers on the spiral side.
Extra details from original publication
early whorls and less truncate spiral side, broadly rounded instead of subacute periphery, more rounded
chambers and less curved sutures on the spiral side.
Loeblich, A. R. & Tappan, H. (1957b). Planktonic foraminifera of Paleocene and early Eocene Age from the Gulf and Atlantic coastal plains. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin. 215: 173-198. gs V O Olsson, R. K., Hemleben, C., Berggren, W. A. & Huber, B. T. (1999). Atlas of Paleocene Planktonic Foraminifera. Smithsonian Institution Press, Washington, DC. 1-252. gsReferences:
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Globorotalia strabocella compiled by the pforams@mikrotax project team viewed: 14-4-2021
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