Trilobita - Olenida - Olenidae
Full reference: R. A. Fortey. 1974. The Ordovician trilobites of Spitsbergen. I. Olenidae. Norsk Polarinstitutt Skrifter 160:1-129
Parent taxon: Olenidae according to R. A. Fortey 1974
See also Fortey and Droser 1999
Sister taxa: Acerocare, Acerocarina, Aciculolenus, Angelina, Apoplanias, Asilluchus, Baikonuraspis, Bondarevites, Chekiangaspis, Ctenopyge, Cyclognathina, Euonchonotina, Eurycare, Hancrania, Helieranella, Highgatella, Huangshiaspis, Hypermecaspidinae, Hypermecaspis, Inkouia, Jujuyaspis, Leiobienvillia, Leptobenthos, Leptoplastinae, 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: Balnibarbi Cloacaspis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Norway (2 collections)
• Ordovician of Norway (4), United States (4: California, Nevada)
• Ibexian of Norway (4)
Total: 14 collections including 20 occurrences