Globigerinoides ruber

Super Group: 
Rhizaria
Phylum: 
Foraminifera
Class: 
Globothalamea
Order: 
Rotaliida
Family: 
Globigerinidae
Genus: 
Globigerinoides
Species: 
ruber
Authority: 
Globigerinoides ruber d'Orbigny, 1839
Synonym(s): 
Globigerina conglobata Brady, 1879
Globigerinoides subquadrata Brönnimann.
Globigerina rubra d'Orbigny

Diagnosis

Test medium, low to high trochospire with three subspherical chambers in the final whorl, increasing moderately in size; sutures radial, distinctly depressed; surface coarsely perforate; thin secondary calcite crusts surround the spine bases; calcite crust developing between spine bases form a honeycombshaped surface ; umbilicus narrow, primary aperture interiomarginal, umbilical with a wide-arched opening bordered by a rim, with two supplementary sutural apertures situated opposite sutures of earlier chambers.

Observation site(s)