Class Enteropneusta (acorn worm)

Enteropneusta

Parent taxon: Hemichordata according to C. B. Cameron 2016

See also Bulman 1970, Nielsen 2012, Sepkoski 2002 and Zrzavy et al. 1998

Sister taxon: Pterobranchia

Subtaxa: Harrimaniidae Oesia Spartobranchus Spengelidae

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Distribution:

• Jurassic of Italy (1 collection)

• Carboniferous of United States (2: Illinois)

• Cambrian of Canada (24: British Columbia), China (1), the Russian Federation (1), United States (12: California, Idaho, Pennsylvania, Utah)

Total: 41 collections including 46 occurrences

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