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Cibicidina
Taxonomy
Cibicidina was named by Bandy (1949) [Sepkoski's age data: T Than R]. It is extant. It was considered unknown by Bandy (1949).
It was assigned to Cibicidinae by Bandy (1949); to Anomalininae by Bertels (1964); and to Foraminiferida by Sepkoski (2002).
It was assigned to Cibicidinae by Bandy (1949); to Anomalininae by Bertels (1964); and to Foraminiferida by Sepkoski (2002).
Species
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. L. Bandy 1949 | Test free, rotaloid, dorsal spire nearly or quite concealed by the involute last whorl, only the last whorl visible on the ventral side; ventral side convex to conical and sometimes umbilicate, dorsal side flat to concave; chambers numerous, closely appressed; edge sharp or bluntly angled; wall hyaline, medium to finely perforate, smooth or with limbate sutures or secondary thickening and papillae, sometimes with central bosses; aperture a small arched opening at the base of the last septal face in the plane of coiling, extending under the involute dorsal flap of the last chamber. Diameter up to about 1mm. Common. |