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Species Globigerina dubia Egger 1857


Discussion / Comments:
Rögl (1985):
This small 5-chambered Early Miocene species measuring 0.25-0.3 mm is characterized by its high trochospire. The comparatively large final chamber partly overlaps the umbilical cavity. The Oligocene G. ciperoensis fariasi is of about the same size and shape but has a more open umbilicus. G. dubia differs from G. ciperoensis ciperoensis and G. ciperoensis ottnangiensis in the high troehospire with the last chamber partly covering the umbilicus.
Synonym list:
Rögl (1985):
1857 Globigerina dubia Egger. - Egger : p.281 pl. 9, figs. 7-9
1985 Globigerina dubia Egger. - Rögl : p.325 figs. 5.1a-c; 3
Was used in synonym list of:
Neogloboquadrina dutertrei dutertrei d'Orbigny 1839
References:

Egger,J.G. (1857):
Die Foraminiferen der Miocän-Schichten bei Ortenburg in Nieder-Bayern . Neues Jahrb. Mineral. Geognos. Geol. Petrefacten Kunde p. 266-311

Rögl,F. (1985):
Late Oligocene and Miocene planktic foraminifera of the Central Paratethys.
In: Plankton Stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 315-328
Anonymous: Unedited TaxonConcept data
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