Species:
Polymorphina problema >
Genus:
Polymorphina >
Subfamily:
Polymorphininae >
Family:
Polymorphinidae >
Superfamily:
Polymorphinoidea >
Suborder:
Polymorphinina >
Order:
Polymorphinida >
Subclass:
Nodosariana >
Class:
Nodosariata >
Phylum:
Foraminifera >
Kingdom:
Chromista >
Unranked:
Biota >