Trilobita - Redlichiida - Olenellidae
Full reference: C. D. Walcott. 1890. Descriptive notes of new genera and species from the Lower Cambrian or Olenellus zone of North America. Proceedings of the United States National Museum 12:33-46
Parent taxon: Olenellidae according to B. S. Lieberman 1999
See also Harrington 1956, Lieberman 1998, Palmer 1998, Palmer and Repina 1993 and Skovsted 2006
Sister taxa: Arcuolenellus, Biceratops, Fritzolenellus, Gabriellinae, Gabriellus, Mesonacinae, Peachella, Teresellus
Subtaxa: Olenellus
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Cambrian of Argentina (1 collection), Canada (57: British Columbia, Labrador, Newfoundland, Newfoundland and Labrador, Northern Territories, Northwest Territories, Nunavut, Yukon Territory), Greenland (6), Mexico (1), Svalbard and Jan Mayen (3), United States (117: Arizona, California, Maryland, Nevada, New York, Pennsylvania, Utah, Vermont, Virginia)
Total: 185 collections including 333 occurrences