Family Priapulidae Gosse 1855 (priapulid worm)
Parent taxon: Priapulida according to M.A. Wills et al. 2012
See also Conway Morris 1977 and Han et al. 2004
Sister taxa: Acosmia, Archaeopriapulida, Archotuba, Badgiromorpha, Corynetis, Eximipriapulus, Halicryptidae, Maccabeidae, Omnidens, Palaeoscolecidomorpha, Priapulomorpha, Selkirkiimorpha, Sicyophorus, Tubiluchidae, Xiaoheiqingidae
Subtaxa: Acanthopriapulus Priapulites Priapulopsis Priapulus Xiaoheiqingella
Type: Priapulus
Ecology: facultatively mobile shallow infaunal carnivore
Distribution: