Trilobita - Ptychopariida - Olenidae
Full reference: A. R. Palmer. 1965. Trilobites of the Late Cambrian Pterocephaliid Biomere in the Great Basin, United States. United States Geological Survey Professional Paper 493:1-105
Parent taxon: Olenidae according to P. A. Jell and J. M. Adrain 2003
Sister taxa: Acerocare, Acerocarina, Angelina, Apoplanias, Balnibarbiinae, Beltella, Boeckaspis, Chekiangaspis, Ctenopyge, Highgatella, Huangshiaspis, Hypermecaspidinae, Hypermecaspis, Inkouia, Jujuyaspis, Leiobienvillia, Leptobenthos, Leptoplastides, Leptoplastinae, Neolenus, Oleninae, Olenus, Parabolina, Parabolinella, Parabolinina, Parabolinites, Paraplicatolina, Peltocare, Peltura, Pelturinae, Plicatolininae, Prohedinella, Protopeltura, Rhodonaspis, Saltaspis, Sphaerophthalmella, Sphaerophthalmus, Westergaardites, Westergardia, Wujiajiania
Subtaxa: Aciculolenus peculiaris
Type: Aciculolenus peculiaris
Ecology: fast-moving low-level epifaunal carnivore