†family Overtoniidae Muir-Wood and Cooper 1960 (lamp shell)
Strophomenata - Productida - Overtoniidae
Parent taxon: Productacea according to C. H. C. Brunton and C. Champion 1974
Sister taxa: Buxtoniidae, Labaellidae, Productellidae, Productidae
Subtaxa: none
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Carboniferous to Permian of United States (4: California collections)
• Carboniferous of Canada (1: Alberta)
Total: 5 collections each including a single occurrence