Gastropoda - Epitonioidea - Epitoniidae
Alternative spelling: Dentiscala
Parent taxon: Opalia according to J. A. Todd 2001
See also Durham 1937, Moore 1976 and Sepkoski 2002
Sister taxa: Epitonium (Opalia) retiporosum, Opalia (Contemniscala), Opalia (Crassiscala), Opalia (Granuliscala), Opalia (Nodiscala), Opalia (Opalia), Opalia (Pliciscala), Opalia (Rugatiscala), Opalia atra, Opalia borealis, Opalia cavea, Opalia crenatoides, Opalia insculpta, Opalia mathewsonii, Opalia montereyensis, Opalia varicostata, Scala (Opalia) calvertensis, Scala (Opalia) prunicola, Scala (Opalia) reticulata
Subtaxa: Dentiscala funiculata Opalia (Dentiscala) hertleini
Ecology: slow-moving low-level epifaunal carnivore
Distribution:
• Quaternary of United States (2: California, Florida collections)
• Oligocene of United States (3: Oregon)
• Eocene of France (2)
Total: 7 collections each including a single occurrence