Family Iulidae Leach 1814 (millipede)
Parent taxon: Diplopoda according to S. H. Scudder 1890
Sister taxa: Arthropleuridea, Chilognatha, Chordeumatida, Decorotergum, Penicillata, Proiulidae
Subtaxa: none
Ecology:
Distribution: found only at Florissant, Station 14 (Eocene of Colorado)