Subfamily Circodiscinae Dumitrica 1989
Polycystinea - Spumellaria - Larnacillidae
Parent taxon: Larnacillidae according to P. De Wever et al. 2001
Sister taxa: Cryptolarnaciinae, Histriastrinae, Larnacillinae
Subtaxa: Circodiscus
Type: Circodiscus
Distribution:
• Pliocene of North Pacific (4 collections)
• Miocene of North Pacific (2)
Total: 6 collections each including a single occurrence