Globigerinoidesella El-Naggar 1971 ...

• Main Authors: Poole, Christopher R., Wade, Bridget S.
• Format: Text
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Chromista; Foraminifera; Globothalamea; Rotaliida; Globigerinidae; Globigerinoidesella; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.5281/zenodo.10932467; https://zenodo.org/doi/10.5281/zenodo.10932467

Genus Globigerinoidesella El-Naggar, 1971 Type species. Globigerina fistulosa Schubert, 1910. Diagnosis. Type of wall: normal perforate, spinose, cancellate ‘ sacculifer -type’ wall texture, though the ‘ sacculifer -type’ wall texture is commonly obscured by secondary, ‘gametogenic’ calcite, heterogeneously distributed around the test, and particularly concentrated on the distal ends of protuberances. Test morphology: trochospiral, typically four chambers in the final whorl. Adult chambers increasing rapidly in size in the final whorl, initially globular and inflated, with final chambers becoming broad and flattened, possessing one or multiple digitate protuberances on individual chambers; sutures distinct, depressed, straight to slightly curved on both sides; open umbilicus, moderate to large; primary aperture typically umbilical, a broad, low to moderate arch with bordering lip or imperforate band; multiple supplementary apertures on spiral side, four to five visible, one per chamber, situated centrally at ... : Published as part of Poole, Christopher R. & Wade, Bridget S., 2019, Systematic taxonomy of the Trilobatus sacculifer plexus and descendant Globigerinoidesella fistulosa (planktonic foraminifera), pp. 1989-2030 in Journal of Systematic Palaeontology 17 (23) on pages 2017-2018, DOI: 10.1080/14772019.2019.1578831, http://zenodo.org/record/10883327 ...