Species:
Orbitolina concava >
Genus:
Orbitolina >
Subfamily:
Orbitolininae >
Family:
Orbitolinidae >
Superfamily:
Orbitolinoidea >
Suborder:
Orbitolinina >
Order:
Loftusiida >
Subclass:
Textulariana >
Class:
Globothalamea >
Phylum:
Foraminifera >
Kingdom:
Chromista >
Unranked:
Biota >