Subfamily Plesiocystiscinae Coovert and Coovert 1995 (snail)
Gastropoda - Neogastropoda - Cystiscidae
Parent taxon: Cystiscidae according to P. Bouchet et al. 2005
Sister taxa: Cystiscinae, Cystiscus, Gibberula, Gibberulina, Granulina, Granulininae, Persiculinae, Pugnus
Subtaxa: Plesiocystiscus
Ecology: epifaunal carnivore
Distribution:
• Quaternary of Mexico (4 collections), United States (14: California)
Total: 18 collections each including a single occurrence