Trilobita - Proetida - Tropidocoryphidae
Parent taxon: Tropidocoryphidae according to A. P. Van Viersen et al. 2019
See also Adrain 2011, Feist 2002, Feist and Belka 2018, Feist and McNamara 2013, Jell and Adrain 2002, Lamsdell and Selden 2015, Owen 1981, Owen and Harper 1982, Owens 1973 and Owens 1994
Sister taxa: Ascetopeltis, Bojocoryphe, Centriproetus, Constantina, Dalarnepeltis, Dipharangus, Erbenicoryphe, Eremiproetinae, Galbertianus, Lodenicia, Miriproetus, Perakaspis, Platyantyx, Pribylia, Pteropariinae, Rabuloproetus, Ranunculoproetus, Richteraspis, Rokycanocoryphe, Stenoblepharum
Subtaxa: Alberticoryphe Chlupaciparia Decoroproetus
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Devonian of Australia (8 collections), the Czech Republic (7), France (2), Germany (2), Morocco (6)
• Silurian of Algeria (1), Australia (2), Canada (9: Quebec), the Czech Republic (23), Greenland (1), Morocco (1), Sweden (1), Ukraine (1), the United Kingdom (9), United States (9: Arkansas, Illinois, Indiana, New York, Oklahoma, Wisconsin)
• Fennian of France (1)
• Ordovician of Canada (4: British Columbia, Quebec), China (1), the Czech Republic (3), Ireland (2), Norway (25), the Russian Federation (1), Sweden (19), the United Kingdom (16), United States (23: Kentucky, Virginia)
Total: 177 collections including 205 occurrences