†family Lebetodiscidae Bell 1976
Edrioasteroidea - Isorophida - Lebetodiscidae
Parent taxon: Isorophida according to T. E. Guensburg 1988
Sister taxa: Agelacrinitidae, Chatsworthia, Cryptogoleus, Curvitriordo, Deltadiscus, Floridiscus, Giganticlavus, Hadrochthus, Hadrodiscus, Protorophus, Rectitriordo, Stalticodiscus
Subtaxa: Euhydrodiskos
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Ordovician of United States (2: Illinois collections)
Total: 2 collections each including a single occurrence