Artiopoda - Agnostida - Agnostidae
Parent taxon: Agnostidae according to J. B. Jago et al. 2004
See also Palmer 1954
Sister taxa: Acmarhachis, Agnostus, Aistagnostus, Barrandagnostus, Biciragnostus, Connagnostus, Eurudagnostus, Formosagnostus, Gymnagnostus, Hadragnostus, Homagnostus, Idolagnostus, Ivshinagnostus, Kormagnostella, Kormagnostus, Kymagnostus, Lotagnostus, Micragnostus, Neoagnostus, Oncagnostus, Oxyagnostus, Peronopsinae, Ptychagnostinae, Quadrahomagnostus, Semagnostus, Strictagnostus, Trilobagnostus
Subtaxa: Innitagnostus
Ecology: slow-moving epifaunal detritivore
Distribution:
• Cambrian of Australia (7 collections), Canada (7: Newfoundland and Labrador, Yukon), China (32), Kazakhstan (15), South Korea (1), United States (5: Alabama, Nevada)
Total: 67 collections including 71 occurrences