Family Chaetopteridae Audouin and Milne Edwards 1833 (worm)
Sedentaria - Spionida - Chaetopteridae
Parent taxon: Spionida according to C. J. Glasby et al. 2000
Sister taxa: Apistobranchidae, Longosomatidae, Magelonidae, Poecilochaetidae, Spionidae, Trochochaetidae, Uncispionidae
Subtaxa: Spiochaetopterus
Distribution: found only at LACMIP Loc. 66-2, Newport Beach [Palos Verdes Sand] (Quaternary of California)