†Coledium Grant 1965 (lamp shell)
Rhynchonellata - Rhynchonellida - Stenoscismatidae
Parent taxon: Stenoscismatinae according to A. Williams et al. 2002
Sister taxa: Atribonium, Camerisma, Liufaia, Sedecularia, Sedenticellula, Stenoscisma, Torynechus
Subtaxa: Coledium elvinia, Coledium globulina, Coledium satuni
Ecology: stationary epifaunal suspension feeder