Phylum Priapulida Théel 1906 (priapulid worm)
Parent taxon: Scalidophora according to G. Mussini et al. 2025
See also Edgecombe et al. 2011, Sepkoski 2002 and Zhang et al. 2015
Sister taxa: Eokinorhynchus, Eolympia, Eopriapulites, Kinorhyncha, Loricifera
Subtaxa: Acosmia Archaeopriapulida Archotuba Badgiromorpha Corynetis Eximipriapulus Halicryptidae Maccabeidae Omnidens Palaeoscolecidomorpha Priapulidae Priapulomorpha Selkirkiimorpha Sicyophorus Tubiluchidae Xiaoheiqingidae