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Globigerinella roeglina
Taxonomy
Globigerinella roeglina was named by Spezzaferri et al. (2018). It is not extant.
Sister species lacking formal opinion data
Entered
by A. McCoy (authorized by J. Sessa) on 2024-11-15
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Globigerinella roeglina Spezzaferri et al. p. 202 |
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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.
†Globigerinella roeglina Spezzaferri et al. 2018
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Spezzaferri et al. 2018 | Type of wall: Spinose, spines are supported by spine collars, which coalesce to form ridges. Pore concentrations average 80 pores/50 μm2 test surface area and pore diameters average 1.5 μm.
Test morphology: Test low trochospiral consisting of 2 whorls, slightly tending to planispiral, lobulate in outline, chambers globular 4-5 in the last whorl, increasing rapidly in size, if present the last chamber may be either slightly radially elongated or smaller that the last chamber. Sutures are depressed, straight on both sides; the umbilicus is moderately small, open, enclosed by surrounding chambers, aperture an umbilical-extraumbilical high arch sometimes tending to move to completely extraumbilical, bordered by an imperforate and very thick rim. Size: Maximum diameter of holotype around 0.35 mm. |