†subfamily Metorthinae Williams 1965 (lamp shell)
Rhynchonellata - Orthida - Plaesiomyidae
Parent taxon: Plaesiomyidae according to A. Williams et al. 2000
Sister taxa: Bokotorthis, Evenkininae, Plaesiomyinae
Subtaxa: Metorthis
Type: Metorthis
Ecology: stationary epifaunal suspension feeder
Distribution: