Species of family “Incertae sedis” (16)

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

Cibicides refulgens

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

Original description de Montfort, D., P., 1808, 3, Paris, France, F. Scholl, 123
Further reference Schweizer, M., Pawlowski, J., Kouwenhoven, T., van der Zwaan, B., 2009, J. For. Res., 39, 300-315 (6.48 MB)
Further reference Langer, M. R., 1988, Rev. de Paléobiol. n° spécial 2, 827-832

General description

Morphologically close to C. lobatulus, but its umbilical side is higher convex than in C. lobatulus. Flat spiral side and angular periphery.

Representative pictures

Cibicides refulgens_C78
6 specimens

Cibicidoides dispars

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

Original description Orbigny, A. D`., 1839, Pitoit-Levrault, Paris
Further reference Schweizer, M., Fontaine, D., Pawlowski, J., 2011, Revue de Micropaléontologie, 54, 175-182 (617 KB)

General description

Cibicidoides dispars was originally described in Falkland Islands samples as Truncatulina dispars and its test was characterized by a significant difference in porosity between the umbilical (small pores) and the spiral (large pores) sides.The species lives at shelf to upper bathyal depths in temperate waters with moderately low food supply, attached to substrates in high energetic environments.

Representative pictures

Cibicidoides dispars
7 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 pachyderma

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

Original description Rzehak, A., 1886, Naturf. Ver., Brünn, Verh., Brünn, 24, 87
Further reference Schweizer, M., Pawlowski, J., Kouwenhoven, T., van der Zwaan, B., 2009, J. For. Res., 39, 300-315 (6.48 MB)

General description

Convex spiral side with some additional calcite on it that is more developed than the convex to flat umbilical side. Angular subacute periphery in profile.

Representative pictures

Cibicidoides pachyderma_C86 Cibicidoides pachyderma_C87
3 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

Cibicidoides variabilis

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

Original description Orbigny, A. D’, 1826, Annales du Museum d’Histoire Naturelles, Paris, 7, 1-275
Further reference Schweizer, M., Fontaine, D., Pawlowski, J., 2011, Revue de Micropaléontologie, 54, 175-182 (617 KB)

General description

The coiling is regular in the first whorl (juvenile stages), but becomes completely chaotic during the later growth stages with coarse porosity on both sides.

Representative pictures

Cibicidoides variabilis
8 specimens

Haynesina germanica

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

Original description Ehrenberg, C., G., 1840, Physikal. Abh. Königl. Akad. Wiss. Berlin, 1841: separate 1840, 81-174
Revision Banner, F. T., Culver, S. J., 1978, J. For. Res., 8, 191-195
Further reference Pillet L, de Vargas C, Pawlowski J, 2011-07-01, Protist, 162, 3, 394-404

General description

Test as in the genus Haynesina with six to twelve chambers per whorl. Broadly rounded test periphery and perforated surface.

Representative pictures

1 specimen

Haynesina orbiculare

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

Original description Brady, H. B., 1881, Ann. Mag. Nat. Hist., London, 8, 415
Description Buzas, M., A., Culver, S., J., Isham, L., B., 1985, Journal of Paleontology, 59, 1075-1090
Further reference Pillet L, de Vargas C, Pawlowski J, 2011-07-01, Protist, 162, 3, 394-404

General description

Like H. germanica, this species lacks sutural bridges. Test periphery is rounded. The considerable development of granular material on the first chamber of the final whorl is typical of this species.

Representative pictures

1 specimen

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