Gastropoda - Epitonioidea - Epitoniidae
Alternative spellings: Epitonium (Nodiscala), Nodiscala, Scalina (Nodiscala)
Synonyms: Funiscala de Boury 1891, Opalia (Funiscala) de Boury 1891
Parent taxon: Opalia according to J. A. Todd 2001
See also Beu 2011, Beu et al. 1990, Durham 1937, DuShane 1979, Gardner 1947, Pacaud and Le Renard 1995 and Sepkoski 2002
Sister taxa: Opalia (Contemniscala), Opalia (Crassiscala), Opalia (Dentiscala), Opalia (Granuliscala), Opalia (Opalia), Opalia (Pliciscala), Opalia (Rugatiscala), Opalia atra, Opalia borealis, Opalia cavea, Opalia crenatoides, Opalia infrequens, Opalia mathewsonii, Opalia montereyensis, Opalia spongiosa, Opalia varicostata, Scala (Opalia) calvertensis, Scala (Opalia) cyclostoma, Scala (Opalia) prunicola, Scala (Opalia) reticulata, Scala (Opalia) thomasi, Scalaria (Opalia) annulata
Subtaxa: Opalia (Nodiscala) obtusicostata
Distribution: