Rhynchonellata - Rhynchonellida - Machaerariidae
Parent taxon: Rhynchotrematoidea according to A. Williams et al. 2002
Sister taxa: Leptocoeliidae, Orthorhynchulidae, Phoenicitoechiidae, Rhynchotrematidae, Trigonirhynchiidae, Trigonorhynchiidae
Subtaxa: Australirhynchia Callipleura Cherubicornea Ferganella Latonotoechia Machaeraria Machaeratoechia Sicorhyncha Thliborhynchia Yukiangides Zeravshanotoechia Zlichorhynchus
Type: Machaeraria
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Australia (7 collections), Austria (1), Canada (34: Northwest Territories, Nunavut, Ontario, Yukon), China (6), Czechia (3), France (1), Italy (1), Mongolia (1), the Russian Federation (11), Tajikistan (2), Ukraine (1), United States (17: Alaska, Indiana, Michigan, Nevada, New York, Ohio, West Virginia, Maryland, Pennsylvania), Uzbekistan (3)
• Silurian to Devonian of Australia (1)
• Silurian of Canada (9: New Brunswick, Northwest Territories, Nunavut, Yukon, Yukon Territory), China (3), Norway (1), the Russian Federation (1), Sweden (6), the United Kingdom (4), United States (34: Illinois, Indiana, Iowa, Maine, Michigan, Nevada, New York)
Total: 147 collections including 165 occurrences