Trilobita - Agnostida - Spinagnostidae

Full reference: Y. Qian and Z. Zhou. 1984. Middle and early Upper Cambrian trilobites from Kunshan, Jiangsu with reference to their distribution in the Lower Yangtze Region. Acta Palaeontologica Sinica 23(2):170-184

Belongs to Hypagnostus according to Y. Qian and Z. Zhou 1984

Sister taxa: Hypagnostus anhuiensis, Hypagnostus brevifrons, Hypagnostus gibber, Hypagnostus hunanicus, Hypagnostus parvifrons, Hypagnostus prodigialis, Hypagnostus scrobiculatus, Hypagnostus transversus, Hypagnostus truncatus, Hypagnostus vulgarus

Type specimen: Its type locality is Ma'an Shan, Kunshan , which is in a Wangcunian carbonate dolomite in China

Ecology: nektonic suspension feeder