Trilobita - Corynexochida - Oryctocephalidae

Parent taxon: Oryctocephalidae according to F. A. Sundberg et al. 2011

Sister taxa: Arthricocephalus, Changaspis, Cheiruroides, Curvoryctocephalus, Duyunaspis, Euarthricocephalus, Feilongshania, Goldfieldia, Hunanocephalus, Kunshanaspis, Lancastria, Metabalangia, Microryctocara, Oryctocara, Oryctocarinae, Oryctocephalina, Oryctocephalites, Oryctocephaloides, Oryctocephalops, Oryctocephalus, Ovatoryctocara, Paleooryctocephalus, Parachangaspis, Protoryctocephalus, Sandoveria, Shabaella, Tonkinella

Subtaxa: Metarthricocephalus spinosus

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Type: Metarthricocephalus spinosus

Ecology: nektobenthic carnivore