Artiopoda - Olenida - Olenidae
Parent taxon: Olenida according to J. M. Adrain 2011
See also Bao and Jago 2000, Bentley et al. 2006, Harrington and Leanza 1957, Robison and Pantoja-Alor 1968, Walcott 1908 and Whittington et al. 1997
Sister taxa: Andrarinidae, Aphelaspidae, Asaphiscidae, Cedariidae, Dokimokephalidae, Eulomidae, Idahoiidae, Loganellidae, Parabolinoididae, Pterocephaliidae
Subtaxa: Acerocare Acerocarina Aciculolenus Angelina Apoplanias Asilluchus Baikonuraspis Balnibarbiinae Bondarevites Chekiangaspis Ctenopyge Cyclognathina Euonchonotina Eurycare Hancrania Helieranella Highgatella Huangshiaspis Hypermecaspidinae Jujuyaspis Leiobienvillia Leptobenthos Leptoplastinae Leptoplastus Magnomma 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
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Uhaku of Norway (1 collection), Sweden (2)
• Chazyan of Canada (4: Newfoundland and Labrador, Northwest Territories)
• Whiterockian of Canada (12: Newfoundland and Labrador), Norway (4)
• Billingen of Norway (1)
• Arenig of Argentina (8), Australia (1), Bolivia (4), China (1), Norway (4), Sweden (3), the United Kingdom (4), United States (1: Nevada)
• Arenigian of Argentina (36)
• Ordovician of Argentina (251), Australia (3), Bolivia (12), Canada (70: Alberta, British Columbia, Newfoundland, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Québec, Yukon), China (18), Colombia (1), Czechia (1), France (2), Iran (1), Ireland (1), Kazakhstan (3), Mexico (27), Morocco (2), New Zealand (1), Norway (17), Peru (1), the Russian Federation (1), Sweden (11), the United Kingdom (30), United States (93: Alaska, California, Idaho, Kentucky, Michigan, Montana, Nevada, New Mexico, New York, Ohio, Pennsylvania, Texas, Utah, Vermont), Venezuela (2)
• Ibexian of Norway (1), United States (1: California)
• Skullrockian of Argentina (2), United States (11: Nevada, Texas, Utah)
• Taoyuanian of China (9), the Russian Federation (17), South Korea (1), Türkiye (1)
• Cambrian to Ordovician of Argentina (13), France (2), Norway (3), Poland (1), Sweden (1)
• Cambrian of Antarctica (5), Argentina (57), Australia (5), Canada (22: Alberta, British Columbia, Newfoundland and Labrador, Quebec, Yukon), China (26), Kazakhstan (42), Mongolia (1), Norway (40), Poland (5), the Russian Federation (9), South Korea (1), Spain (1), Sweden (27), the United Kingdom (13), United States (41: Arkansas, Montana, Nevada, Nevada and Utah, New Mexico, Oklahoma, South Dakota, Texas, Utah, Wyoming)
• Amgan of the Russian Federation (1)
Total: 993 collections including 1713 occurrences