Catalog - Gublerina glaessneri

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Gublerina glaessneri

Citation: Gublerina glaessneri Bronnimann & Brown 1953

Type repository: Washington; USNM

This flabellate test is composed of an initial planispiral coil followed by an early biserial stage, which later diverges and a second biserial stage is interposed between the two original series. In the last stage more chambers may be interposed. In lateral view the outline of the early stage is entire or un-lobated, later it is somewhat serrated, and finally it becomes lobated. This outline is produced by the closely appressed chambers of the early stage, followed by sub angular chambers, and then by the broadly rounded reniform chambers of later development. The inner chambers are laterally compressed and flattened below the level of the peripheral or outer chambers. Chambers in all series overlap and tend to become reniform in later development. The sutures are flush in the early stage. They become impressed and limbated in later development. The outer chambers display rather rough irregular longitudinal striae late in the early stage; later they tend to disappear. The last chambers are damaged or missing in our specimens and the apertures could not be observed.

References:

Brönnimann, P. & Brown, N. K. (1953). Observations on some planktonic Heterohelicidae from the Upper Cretaceous of Cuba. Contributions from the Cushman Foundation for Foraminiferal Research. 4(4): 150-156. gs V O

Montanaro Gallitelli, E. (1957). A revision of the foraminiferal family Heterohelicidae. In: Studies in foraminifera; Part 1 - Planktonic foraminifera. 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: 133-154. gs V O

CATALOG OF ORIGINAL DESCRIPTIONS: Gublerina glaessneri Bronnimann & Brown 1953

Gublerina glaessneri

References:

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