Species:
Sigmoilina proboscidea >
Genus:
Sigmoilina >
Subfamily:
Sigmoilinitinae >
Family:
Hauerinidae >
Superfamily:
Milioloidea >
Suborder:
Miliolina >
Order:
Miliolida >
Class:
Tubothalamea >
Phylum:
Foraminifera >
Kingdom:
Chromista >
Unranked:
Biota >