†order Selkirkiimorpha Adrianov and Malakhov 1995 (priapulid worm)
Parent taxon: Priapulida according to K. Nanglu and J. Ortega-Hernández 2024
See also Wang et al. 2021
Sister taxa: Acosmia, Archaeopriapulida, Archotuba, Badgiromorpha, Corynetis, Eximipriapulus, Halicryptidae, Maccabeidae, Omnidens, Palaeoscolecidomorpha, Priapulidae, Priapulomorpha, Sicyophorus, Tubiluchidae, Xiaoheiqingidae
Subtaxa: Selkirkiidae
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