Gastropoda - Opisthobranchia - Cylichnidae
Parent taxon: Cylichna according to O. Mandic and F. F. Steininger 2003
Sister taxa: Cylichna (Acrostemma), Cylichna (Cylichnopsis), Cylichna alba, Cylichna andersoni, Cylichna angustata, Cylichna angystoma, Cylichna attonsa, Cylichna aula, Cylichna calvertensis, Cylichna discus, Cylichna diversilirata, Cylichna elliptica, Cylichna faba, Cylichna fantasma, Cylichna greensboroensis, Cylichna incisa, Cylichna intermissia, Cylichna jacksonensis, Cylichna loismartinae, Cylichna occulta, Cylichna paupercula, Cylichna pessumata, Cylichna ramonensis, Cylichna salbriacensis, Cylichna secalina, Cylichna solivaga, Cylichna subalpina, Cylichna takashimaensis, Cylichna temblorensis, Cylichna tenuis, Cylichna venusta
Subtaxa: Cylichna (Cylichna) cylindracea
Ecology: epifaunal carnivore
Distribution:
• Quaternary of France (1 collection), Morocco (1)
• Pliocene of Belgium (2), Italy (2), the Netherlands (1), the United Kingdom (1)
• Miocene of Austria (2), Belgium (9), Denmark (1), Germany (30), Italy (2), the Netherlands (2)
Total: 54 collections including 58 occurrences