†Pirgulia (lamp shell)
Strophomenata - Productida - Lyttoniidae
Parent taxon: Lyttoniinae according to A. Williams et al. 2000
Sister taxa: Cardinocrania, Collemataria, Coscinophora, Eolyttonia, Gubleria, Keyserlingina, Leptodus, Loxophragmus, Matanoleptodus, Oldhamina, Oldhaminella, Pararigbyella, Petasmaia
Subtaxa: Pirgulia conica
Type: Lyttonia conica
Ecology: stationary low-level epifaunal suspension feeder