Trilobita - Phacopida - Calymenidae
Parent taxon: Calymenidae according to J. M. Adrain and G. D. Edgecombe 1997
See also Adrain et al. 1995
Sister taxa: Calymenesum, Carmoninae, Flexicalymeninae, Gravicalymene, Linguocalymene, Liocalymene, Neseuretus, Nipponocalymene, Onnicalymene, Papillicalymene, Pharostomatinae, Platycalymene, Pradoella, Protocalymene, Reacalymene, Reedocalymene, Reedocalymeninae, Salterocoryphe, Spathacalymene, Tapinocalymene
Subtaxa: Alcymene Arcticalymene Atlanticalymene Calymene Diacalymene
Ecology: nektobenthic carnivore
Distribution:
• Devonian of Australia (6 collections), Bolivia (1), China (1), France (3), Kazakhstan (1), Morocco (2), New Zealand (1), United States (1: Nevada)
• Whitwellian of Canada (5: Northwest Territories)
• Jaani of Estonia (8), Latvia (1), Lithuania (4)
• Niagaran of United States (1: Indiana)
• Silurian to Devonian of Argentina (1)
• Silurian of Argentina (6), Belarus (4), Canada (131: Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec), China (1), the Czech Republic (10), Estonia (16), Greenland (2), India (1), Ireland (1), Latvia (7), Lithuania (8), Norway (4), Paraguay (2), Poland (5), the Russian Federation (5), Sweden (16), Ukraine (19), the United Kingdom (53), United States (122: Alaska, Arkansas, Georgia, Illinois, Indiana, Iowa, Maryland, New York, Oklahoma, Tennessee, Virginia, West Virginia, Wisconsin)
• Dobrotivian of France (2)
• Ordovician to Silurian of Norway (1)
• Ordovician of Canada (28: Newfoundland, Nunavut, Ontario, Quebec, Québec), China (3), Norway (1), Sweden (1), the United Kingdom (2), United States (7: Indiana, Michigan, Minnesota, Tennessee, Virginia)
• Tremadoc of China (1)
Total: 495 collections including 565 occurrences