†family Selkirkiidae Conway Morris 1977 (priapulid worm)
Selkirkiimorpha - Selkirkiidae
Full reference: S. Conway Morris. 1977. Fossil priapulid worms. Special Papers in Palaeontology 20
Parent taxon: Selkirkiimorpha according to K. Nanglu and J. Ortega-Hernández 2024
See also Conway Morris 1977, Conway Morris and Robison 1988 and Wang et al. 2021
Sister taxa: none
Type: Selkirkia
Ecology: facultatively mobile shallow infaunal carnivore
Distribution:
• Ordovician of Morocco (1 collection)
• Cambrian of Canada (30: Alberta, Brithish Columbia, British Columbia), China (22), United States (9: Idaho, Nevada, Pennsylvania, Utah)
Total: 62 collections including 79 occurrences