†phylum Priapulida

Parent taxon: Scaldiphora according to H. Zhang et al. 2015

See also Edgecombe et al. 2011 and Sepkoski 2002

Sister taxon: Priapula

Subtaxa: Acosmia Ancalagonidae Archotuba Corynetis Eximipriapulus Fieldiidae Lecythioscopa Miskoiidae Omnidens Ottoiidae Paraselkirkia Priapulomorpha Scolecofurca Selkirkiidae Sicyophorus Singuuriqia

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Ecology: facultatively mobile shallow infaunal carnivore

Distribution:

• Carboniferous of United States (4: Illinois collections)

• Marjumian of United States (1: Utah)

• Cambrian of Canada (31: Brithish Columbia, British Columbia), China (27), Greenland (1), United States (7: Idaho, Nevada, Pennsylvania, Utah)

Total: 71 collections including 170 occurrences

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