†family Phanerotrematidae Knight 1956 (snail)
Full reference: J. B. Knight. 1956. New families of Gastropoda. Journal of the Washington Academy of Sciences 46(2):41-42
Parent taxon: Eotomarioidea according to P. Bouchet et al. 2005
Sister taxa: Eotomariidae, Gosseletinidae, Luciellidae, Porcelliidae, Pseudoschizogoniidae, Wortheniellidae
Subtaxa: Brachytomaria, Phanerotrema, Ulrichospira
Type: Phanerotrema
Ecology: facultatively mobile epifaunal suspension feeder