Family Goniadidae Kinberg 1866 (scale worm)
Polychaeta - Phyllodocida - Goniadidae
Parent taxon: Phyllodocida according to C. J. Glasby et al. 2000
See also Schram 1979
Sister taxa: Acoetidae, Alciopidae, Aphroditidae, Aphroditiformia, Chrysopetalidae, Eulepethidae, Glyceridae, Hesionidae, Ichthyotomidae, Iospilidae, Lacydoniidae, Lopadorrhynchidae, Nautiliniellidae, Nephtyidae, Nereididae, Paralacydoniidae, Pholoidae, Phyllodocidae, Pilargidae, Pisionidae, Polynoidae, Pontodoridae, Sigalionidae, Sphaerodoridae, Syllidae, Tomopteridae, Typhloscolecidae
Subtaxa: Carbosesostris
Ecology: epifaunal detritivore
Distribution:
• Carboniferous of United States (2: Montana collections)
Total: 2 collections each including a single occurrence