†subfamily Siphonosiinae Lazarev 1986 (lamp shell)
Strophomenata - Productida - Linoproductidae
Parent taxon: Linoproductidae according to A. Williams et al. 2000
Sister taxa: Anidanthinae, Linispininae, Linoproductinae, Paucispinauriinae, Selloproductus
Subtaxa: Siphonosia
Type: Siphonosia
Ecology: stationary low-level epifaunal suspension feeder
Distribution: found only at USNM721u, Hill 5280, Glass Mountains (Permian of Texas)