Trilobita - Proetida - Telephinidae
Parent taxon: Proetida according to R. A. Fortey and D. L. Bruton 2013
See also Adrain 2011, Chatterton et al. 1999, Fortey and Droser 1999 and Whittington et al. 1997
Sister taxa: Aulacopleuroidea, Bathyuridae, Bathyuroidea, Cammingella, Dimeropygidae, Huanoproetus, Hystricuridae, Niachangella, Parapalebralia, Phaselops, Proetoidea, Pusillaboles, Radonia, Sperginaspis, Tayanaella, Tekinia, Vitaella
Subtaxa: Carolinites Carrickiinae Goniophrys Oopsites Opipeuter Opipeuteridae Phorocephala Pyraustocranium Telephina
Ecology: nektonic microcarnivore
Distribution:
• Uhaku of Norway (14 collections), Sweden (2)
• Chazyan of Canada (16: Newfoundland and Labrador, Northwest Territories)
• Whiterockian of Canada (12: Newfoundland and Labrador, Northwest Territories, Quebec), Norway (4), United States (13: Nevada, New York, Oklahoma, Vermont)
• Dawan of China (1)
• Arenigian of Canada (1: Northwest Territories), China (5), United States (5: Nevada, Utah)
• Arenig of Argentina (7), Australia (7), Canada (1: Newfoundland and Labrador), China (10), Norway (4)
• Ordovician of Argentina (4), Australia (20), Canada (7: Alberta, Newfoundland and Labrador, Northwest Territories), China (50), the Czech Republic (1), Iran (3), Ireland (4), Italy (2), Kazakhstan (1), Norway (18), the Russian Federation (11), Sweden (9), the United Kingdom (8), United States (54: California, Idaho, Maine, Nevada, Utah, Virginia)
• Canadian of Canada (2: Northwest Territories, Québec)
• Tremadoc of Canada (5: Alberta)
• Ibexian of Norway (4), United States (2: Nevada, New York)
Total: 307 collections including 380 occurrences