†family Selkirkiidae Conway Morris 1977 (priapulid worm)
Archaeopriapulida - Selkirkiidae
Full reference: S. Conway Morris. 1977. Fossil priapulid worms. Special Papers in Palaeontology 20
Parent taxon: Archaeopriapulida according to S. Conway Morris 1977
See also Conway Morris and Robison 1988
Sister taxa: Ancalagonidae, Fieldiidae, Lecythioscopa, Miskoidae, Ottoidae, Scolecofurca, Singuuriqia
Subtaxa: Selkirkia
Type: Selkirkia
Ecology: facultatively mobile shallow infaunal carnivore
Distribution:
• Delamaran of Canada (26: British Columbia collections), United States (4: Idaho, Utah)
• Cambrian of Canada (2: Brithish Columbia, British Columbia), China (1), United States (5: Nevada, Pennsylvania, Utah)
Total: 38 collections including 55 occurrences