| Sigmoilinita Temporal range: Miocene - Recent | |
|---|---|
| Scientific classification | |
| (unranked): | SAR |
| (unranked): | Rhizaria |
| Phylum: | Foraminifera |
| Class: | Tubothalamea |
| Order: | Miliolida |
| Superfamily: | Miliolacea |
| Family: | Hauerinidae |
| Genus: | Sigmoilinita Seiglie, 1965 |
Sigmoilinita is a miliolid genus (Foraminifera) with an ovate to fusiform test that becomes flattened with growth. Chambers are tubular, one-half coil in length, at first added in a sigmoiline (S-shaped) series starting at slightly more than 180° apart. the angle gradually decreasing until the later whorls are planispiral. Chambers are numerous, the wall narrow. imperforate, porcelaneous. The aperture at the end of the final chamber may have a weakly developed tooth.
References
- Alfred R. Loeblich Jr and Helen Tappan,1988. Forminiferal Genera and their Classification. E-book
| Taxon identifiers | |
|---|---|
| Sigmoilinita | |