Species of family “Rotaliidae” (13)

Ammonia aomoriensis T6

Order “Rotaliida” > Family “Rotaliidae” > Genus “Ammonia

Original description Asano, K., 1951, Hosokawa Printing, Tokyo, 1-21
Revision Hayward, B., W., Holzmann, M., Grenfell, H., R., Pawlowski, J., 2004, Mar. Micropal., 50, 237-271 (1.58 MB)
Further reference Schweizer, M., Polovodova, I., Nikulina, A., Schönfeld, J., 2011, Helgol. Mar. Res., 65, 1-10 (588 KB)

General description

See the paper of Hayward et al., 2004 for a morphological characterization.

Representative pictures

Ammonia aomoriensis T6_132, umbilical view Ammonia aomoriensis T6_132, spiral view
1 specimen

Ammonia falsobeccarii

Order “Rotaliida” > Family “Rotaliidae” > Genus “Ammonia

Original description Uchio, T., 1950, Assoc. Petr. Technologists, Jour., 15, 190
Revision Hofker, J., 1958, Contr. Cushman Found. For. Res., 9, 46-48
Further reference Schweizer,M., Jorissen, F.,Geslin, E.,, 2011, C. R. Palevol, 10, 95-105 (600 KB)

General description

Trochospiral form resembling Eponides, characterised by secondary openings on the dorsal side. The toothplate extends to the chamber wall, and is connected to the dorsal secondary openings.

Representative pictures

Ammonia falsobeccarii F277
1 specimen