Species found in “Oslofjord, Norway” (20)

Bulimina marginata

Order “Rotaliida” > Family “Incertae sedis” > Genus “Bulimina

Original description Orbigny, A. D`., 1826, Ann. Scien. Nat., 7, 245-314
Description Höglund, H., 1947, Zoologiska Bidrag fran Uppsala, 26

General description

Ovate test, tapering, numerous inflated chambers arranged in a triserial spiral that is somewhat twisted, lower chamber margins usually extending out from the preceding, might be armed with spines of varying length.

Representative pictures

Bulimina marginata
2 specimens

Cibicidoides lobatulus

Order “Rotaliida” > Family “Incertae sedis” > Genus “Cibicidoides

Original description Walker, G., Jacob, E.: In Kanmacher, F., 1798, London, England, printed by Dillon and Keating
Further reference Schweizer, M., Pawlowski, J., Kouwenhoven, T., van der Zwaan, B., 2009, J. For. Res., 39, 300-315 (6.48 MB)

General description

Low trochospiral test, planoconvex in cross-section, involute, convex umbilicate side and slightly convex evolute spiral side. Coarsely perforated chamberson both sides.

Representative pictures

Cibicidoides lobatulus_C39
10 specimens

Cibicidoides ungerianus

Order “Rotaliida” > Family “Incertae sedis” > Genus “Cibicidoides

Original description Orbigny, A. D`., 1846, Paris: Gide et Comp.
Further reference Schweizer, M., Pawlowski, J., Kouwenhoven, T., van der Zwaan, B., 2009, J. For. Res., 39, 300-315 (6.48 MB)

General description

Umbilical side is always more convex than spiral side that is flat to slightly convex. The test is rather thin and transparent with angular periphery.

Representative pictures

Cibicidoidesungerianus_F180 Cibicidoides ungerianus_C29
3 specimens

Nonionella labradorica

Order “Rotaliida” > Family “Incertae sedis” > Genus “Nonionella

Original description Dawson, J. W., 1860, Canadian Nat. Geol. , Montreal, Canada., 5, 191
Further reference Schweizer, M., Pawlowski, J., Kouwenhoven, T., J., Guiard, J., van der Zwaan, B., 2008, Mar. Micropal., 66 (1.09 MB)
Further reference Cedhagen, T., 1991, Ophelia, 33, 17-30 (7.88 MB)

General description

Equilateral smooth test, last chamber inflated, extends in two lobes on either side of the earlier whorls.

Representative pictures

Nonionella labradorica Nonionella labradorica
4 specimens

Uvigerina peregrina

7 specimens