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Racemiguembelina
Taxonomy
Racemiguembelina was named by Gallitelli (1957) [Sepkoski's age data: K Maes-u]. It was considered unknown by Gallitelli (1957).
It was assigned to Heterohelicidae by Gallitelli (1957); to Heterohelicinae by Pessagno (1967); and to Foraminiferida by Sepkoski (2002).
It was assigned to Heterohelicidae by Gallitelli (1957); to Heterohelicinae by Pessagno (1967); and to Foraminiferida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Racemiguembelina Gallitelli |
| 1967 | Racemiguembelina Pessagno p. 270 |
| 2002 | Racemiguembelina Sepkoski |
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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 | |
|---|---|---|
| E. M. Gallitelli 1957 | Test calcareous, conical in shape; rarely planispiral in the early stage, later biserial, increasing regularly and equally in thickness and breadth, finally proliferated with a varying number of additional globular chambers, the last of which form a crown at the top of the test and are provided with a series of arcuate, basal apertures. No spiral arrangement of the adult chambers is evident. Ornamentation consists of longitudinally developed costae. |