†family Spionidae Grube 1850 (worm)
Polychaeta - Spionida - Spionidae
Parent taxon: Spionida according to C. J. Glasby et al. 2000
See also Wienrich 1999
Sister taxa: Apistobranchidae, Chaetopteridae, Longosomatidae, Magelonidae, Poecilochaetidae, Trochochaetidae, Uncispionidae
Subtaxa: Meandropolydora Polydora
Ecology: stationary low-level epifaunal detritivore
Distribution:
• Quaternary of Italy (1 collection), United States (9: California, North Carolina, Virginia)
• Pliocene of Belgium (1)
• Miocene of Germany (1), United States (5: Maryland, Texas)
• Paleocene of United States (1: Illinois)
• Cretaceous of Germany (1), United States (2: Alabama, Arizona)
• Jurassic of France (1), Portugal (1)
Total: 23 collections each including a single occurrence