Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | ![]() | Woodringina hornerstownensis Test biserial, elongate, tapering with 6 or more chamber pairs, distinctly twisted. Wall microperforate. Aperture with a thin lip. Apertural position and height are somewhat variable. | ||
![]() | ![]() | Woodringina claytonensis Test triserial initially then biserial, twisted with 5 or less chambers pairs. Apertural height appears to vary from high to low. | ||
Woodringina sp. Specimens which cannot be assigned to established species |
Catalog entries: Woodringina
Distinguishing features:
Parent taxon (Guembelitriidae): Tests triserial, trochospiral, or nearly triserial in initial whorl becoming biserial. Chambers usually globular or subglobular, increasing gradually in size. Aperture usually a loop-shaped arch, often slightly infolded on one side, marked by a fine lip.
This taxon: Tests contain an initial whorl of 3 chambers, later whorls of 2 chambers each. Test wall microperforate, marked by a guembelitriid surface texture (smooth walled or bearing perforate pustules). Aperture usually asymmetrically positioned and thin apertural lip infolded on one side.
Geological Range:
Last occurrence (top): in lower part of Selandian Stage (37% up, 60.7Ma, in Selandian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Primary source for this page: Olsson et al. 1999 - Atlas of Paleocene Planktonic Foraminifera, p. 86
Blow, W. H. (1979). The Cainozoic Globigerinida: A study of the morphology, taxonomy, evolutionary relationships and stratigraphical distribution of some Globigerinida (mainly Globigerinacea). E. J. Brill, Leiden. 2: 1-1413. gs El-Naggar, Z. R. (1971a). On the classification, evolution and stratigraphical distribution of the Globigerinacea. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference, Roma 1970. Edizioni Tecnoscienza, Rome 421-476. gs Loeblich, A. R. & Tappan, H. (1957a). Woodringina, a new foraminiferal genus (Heterohelicidae) from the Paleocene of Alabama. Journal of the Washington Academy of Sciences. 47: 39-40. gs Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gs 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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Woodringina compiled by the pforams@mikrotax project team viewed: 25-9-2023
Short stables page link: https://mikrotax.org/pforams/index.php?id=100325 Go to Archive.is to create a permanent copy of this page - citation notes |