†family Dalmanellidae Schuchert 1913 (lamp shell)
Parent taxon: Dalmanelloidea according to A. Williams et al. 2000
Sister taxa: Angusticardiniidae, Dicoelosiidae, Harknessellidae, Heterorthidae, Hypsomoniidae, Kayserellidae, Mystrophoridae, Paurorthidae, Platyorthidae, Portranellidae, Proschizophoriidae, Rhipidomellidae, Tyronellidae
Subtaxa: Cortezorthinae, Dalmanellinae, Isorthinae, Prokopiinae, Resserellinae, Templeellinae
Type: Dalmanella
Ecology: stationary epifaunal suspension feeder