Artiopoda - Olenida - Olenidae
Parent taxon: Olenidae according to R. A. Robison and J. Pantoja-Alor 1968
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, Jujuyaspis, Leiobienvillia, Leptobenthos, Leptoplastinae, Leptoplastus, Lisania, Magnomma, Marjumia, Nericiaspis, Oleninae, Olenus, Parabolina, Parabolinella, Parabolinina, Parabolinites, Paraolenus, Paraplicatolina, Peltocare, Peltura, Pelturina, Plicatolininae, Prohedinella, Protopeltura, Remizites, Rhodonaspis, Saltaspis, Sphaerophthalmella, Talbotinella, Ullaspis, Westergaardia, Westergaardites, Wujiajiania
Subtaxa: Anaximander Chungkingaspis Leptoplastides Leurostega Psilocara Svalbardites
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Billingen of Norway (1 collection)
• Arenigian of Argentina (1)
• Arenig of Argentina (1), Norway (2)
• Ordovician of Argentina (99), Bolivia (9), Canada (1: Newfoundland), China (2), Colombia (1), Iran (1), Mexico (4), Morocco (2), Norway (3), the United Kingdom (12), United States (1: Texas)
• Ibexian of Norway (1)
• Cambrian to Ordovician of France (2), Poland (1)
• Cambrian of Argentina (8), Canada (1: Newfoundland and Labrador), Norway (5), Poland (4), the United Kingdom (5)
Total: 167 collections including 185 occurrences