Ostracoda - Hollinocopida - Eurychilinidae
Parent taxon: Eurychilinidae according to M. Mohibullah et al. 2013
See also Henningsmoen 1953
Sister taxa: Apatochilina, Ballardina, Bicornellina, Chilobolbininae, Nodambichilina, Opikella, Tsitrella
Subtaxa: Coelochilina Eurychilina
Ecology: epifaunal
Distribution:
• Silurian of the Russian Federation (2 collections), United States (1: Oklahoma)
• Dobrotivian of Portugal (1)
• Uhaku of the Russian Federation (1)
• Chazyan of Canada (9: Northwest Territories, Quebec), United States (31: New York)
• Whiterockian of United States (9: Nevada)
• Ordovician of Canada (22: Northwest Territories, Nunavut, Ontario, Quebec), the Russian Federation (16), Sweden (2), United States (37: Indiana, Iowa, Minnesota, Nevada, Oklahoma, Tennessee, Virginia, Wisconsin)
Total: 131 collections including 185 occurrences