Trilobita - Olenida - Olenidae
Parent taxon: Olenidae according to M. Høyberget and D. L. Bruton 2012
See also Harrington and Leanza 1957
Sister taxa: Acerocare, Acerocarina, Aciculolenus, Angelina, Apoplanias, Asilluchus, Baikonuraspis, Balnibarbiinae, Bondarevites, Chekiangaspis, Ctenopyge, Cyclognathina, Euonchonotina, Eurycare, Hancrania, Helieranella, Highgatella, Huangshiaspis, Hypermecaspidinae, Inkouia, Jujuyaspis, Leiobienvillia, Leptobenthos, Leptoplastus, Lisania, Magnomma, Marjumia, Nericiaspis, Oleninae, Olenus, Parabolina, Parabolinella, Parabolinina, Parabolinites, Paraolenus, Paraplicatolina, Peltocare, Peltura, Pelturina, Pelturinae, Plicatolininae, Prohedinella, Protopeltura, Remizites, Rhodonaspis, Saltaspis, Sphaerophthalmella, Talbotinella, Ullaspis, Westergaardia, Westergaardites, Wujiajiania
Subtaxa: Sphaerophthalmus Triangulopyge
Ecology: fast-moving low-level epifaunal carnivore
Distribution: