Trilobita - Ptychopariida - Dokimocephalidae

Full reference: C. D. Walcott. 1924. Cambrian geology and paleontology. II. No. 9, New York Potsdam-Hoyt fauna. Smithsonian Miscellaneous Collections 75(1):1-51

Parent taxon: Dokimocephalidae according to P. A. Jell and J. M. Adrain 2003

Sister taxa: Bellaspidella, Bellaspis, Burnetiella, Calocephalites, Chalfontia, Conaspis, Deadwoodia, Deckera, Dellea, Dokimocephalus, Eshelmania, Glyptometopsis, Jingxiania, Kindbladia, Kiowaia, Kyphocephalus, Lorrettina, Pinctus, Pseudosaratogia, Ritella, Sulcocephalus, Taenicephalina, Wuhuia

Subtaxa: Iddingsia anatina, Iddingsia relativa

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Ecology: fast-moving low-level epifaunal carnivore