Class: Rotaliata    Subclass: Rotaliana    Order: Rotaliida    Family: Gavelinellidae
Gyroidina comma White, 1928
     Morphological Attributes:
Wallmaterial: hyaline
Overall appearance: coiled spirally
Coiling: trochospiral
Chamberform: triangular to trapezoid
Aperture Position: umbilical extraumbilical
Aperture Form: slit, no tooth, no neck, no lip
Sutures: --, --, --
Ornamentation: --, --, --, --



type specimen
holotype
Cretaceous
Upper Cretaceous

Mexico and Middle America
unknown
FEU-1008640
type specimen
holotype
Cretaceous
Upper Cretaceous

Mexico and Middle America
unknown
FEU-1008639