Trilobita - Phacopida - Cheiruridae

Full reference: G. D. Edgecombe, B. D. E. Chatterton, N.E. Vaccari and B.G. Waisfield. 1999. Ordovician cheirurid trilobites from the Argentine Precordillera. Journal of Paleontology 73(6):1155-1175

Belongs to Nieszkowskia according to G. D. Edgecombe et al. 1999

Sister taxon: Nieszkowskia yongyii

Ecology: fast-moving low-level epifaunal carnivore