†subfamily Leioseptathyridinae Sun and Boucot 1999 (lamp shell)
Rhynchonellata - Terebratulida - Stringocephalidae
Parent taxon: Stringocephalidae according to A. Williams et al. 2006
Sister taxa: Bornhardtininae, Geranocephalinae, Kaplexinae, Omoloninae, Rensselandiinae, Stringocephalinae
Subtaxa: Leioseptathyris
Type: Leioseptathyris
Ecology: stationary low-level epifaunal suspension feeder
Distribution: there are no occurrences of Leioseptathyridinae in the database