†subfamily Syntrophiinae Schuchert 1896 (lamp shell)
Rhynchonellata - Pentamerida - Syntrophiidae
Parent taxon: Syntrophiidae according to A. Williams et al. 2002
Sister taxon: Xenelasmatinae
Subtaxa: Syntrophia
Type: Syntrophia
Ecology: stationary epifaunal suspension feeder
Distribution: