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.