Artiopoda - Proetida - Bathyuridae
Parent taxon: Bathyuridae according to R. A. Fortey and D. L. Bruton 2013
See also Loch 2007 and Walcott 1886
Sister taxa: Acidiphorus, Aponileus, Bathyurellinae, Bathyurus, Eleutherocentrus, Ermanella, Gignopeltis, Gladiatoria, Madaraspis, Psephosthenaspis, Pseudoolenoides, Raymondites, Strigigenalis
Subtaxa: Bathyurine Bolbocephalus Catochia Cullisonia Gelasinocephalus Jeffersonia Peltabellia Petigurus Psalikilopsis Rananasus Ranasasus Speyeris
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Whiterockian of United States (2: Nevada, Utah collections)
• Arenig of Argentina (1), Canada (3: Newfoundland and Labrador), Greenland (7), the Russian Federation (1)
• Ordovician of Argentina (1), Canada (60: Alberta, Newfoundland, Newfoundland and Labrador, Nunavut, Ontario, Quebec), China (5), Greenland (2), Iran (1), Norway (5), the Russian Federation (1), United States (161: Idaho, Missouri, Montana, Nevada, New York, Oklahoma, Texas, Utah, Vermont)
• Canadian of Canada (1: Newfoundland and Labrador)
• Ibexian of Canada (1: Quebec), Norway (1)
• Skullrockian of Canada (1: Newfoundland)
Total: 254 collections including 452 occurrences