Trilobita - Ptychopariida - Olenidae
Synonym: Simulolenus Palmer 1965
Parent taxon: Olenidae according to J.-S. Bao and J.B. Jago 2000
Sister taxa: Acerocare, Acerocarina, Aciculolenus, Angelina, Apoplanias, Balnibarbiinae, Beltella, Boeckaspis, Chekiangaspis, Ctenopyge, Highgatella, Huangshiaspis, Hypermecaspidinae, Hypermecaspis, Inkouia, Jujuyaspis, Leiobienvillia, Leptobenthos, Leptoplastides, Leptoplastinae, Neolenus, Oleninae, Parabolina, Parabolinella, Parabolinina, Parabolinites, Paraplicatolina, Peltocare, Peltura, Pelturinae, Plicatolininae, Prohedinella, Protopeltura, Rhodonaspis, Saltaspis, Sphaerophthalmella, Sphaerophthalmus, Westergaardites, Westergardia, Wujiajiania
Subtaxa: Olenus austriacus, Olenus sinensis, Simulolenus granulatus, Simulolenus quadrisulcatus
Ecology: fast-moving low-level epifaunal carnivore