Gastropoda - Pseudomelanoidea - Pseudomelaniidae
Alternative spelling: Oonia
Synonyms: Eligmoloxus Cossmann 1885, Pseudomelania (Eligmoloxus) Cossmann 1885
Parent taxon: Pseudomelania according to E. Kittl 1894
See also Fischer and Vadet 1985, Sepkoski 2002 and Wenz 1938
Sister taxa: Pseudomelania (Rhabdoconcha), Pseudomelania aonis, Pseudomelania colusaensis, Pseudomelania feruglioi, Pseudomelania frankei, Pseudomelania gaudryi, Pseudomelania goniophana, Pseudomelania hagenowi, Pseudomelania miles, Pseudomelania muensteri, Pseudomelania paucispira, Pseudomelania salenasensis, Pseudomelania subsimilis, Pseudomelania subterebra, Pseudomelania subula, Pseudomelania trochiformis
Subtaxa: Oonia incrassata Oonia pennina Oonia subtortilis Oonia texta Pseudomelania (Oonia) grossouvrei Pseudomelania (Oonia) limneiformis Pseudomelania (Oonia) similis
Ecology: epifaunal
Distribution: