Artiopoda - Corynexochida - Oryctocephalidae
Parent taxon: Oryctocephalidae according to F. A. Sundberg and L. B. McCollum 1997
See also Sundberg and McCollum 2003 and Sundberg and McCollum 2003
Sister taxa: Arthricocephalus, Balangia, Barklyella, Changaspis, Cheiruroides, Cheiruroididae, Curvoryctocephalus, Duyunaspis, Euarthricocephalus, Feilongshania, Hunanocephalus, Kunshanaspis, Lancastria, Metabalangia, Metarthricocephalus, Opsiosoryctocephalus, Oryctocara, Oryctocare, Oryctocephalina, Oryctocephalinae, Oryctocephaloides, Oryctocephalops, Paleooryctocephalus, Protoryctocephalus, Sandoveria, Shabaella, Shergoldiella, Thoracocare, Tonkinellinae
Subtaxa: Microryctocara Ovatoryctocara
Ecology: nektobenthic carnivore
Distribution:
• Cambrian of China (12 collections), Greenland (6), United States (14: California, Nevada)
• Amgan of the Russian Federation (2)
Total: 34 collections including 39 occurrences