Full reference: R. H. Flower. 1962. Part 1, Revision of Buttsoceras, Part 2, Notes on the Michelinoceratida. State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, Memoir 10:1-58
Parent taxon: Orthoceratina according to B. Kröger 2013
See also Kröger 2007, Kröger 2008, Kröger et al. 2011 and Teichert et al. 1964
Sister taxon: Eriditidae
Subtaxa: Anaspyroceras Calocyrtocerina Dawsonoceras Dawsonocerina Metaspyroceras Palaeodawsonocerina
Type: Dawsonoceras
Ecology: nektonic carnivore
Distribution:
• Devonian of Australia (1 collection), Canada (2: Ontario), Czechia (1), Morocco (3)
• Niagaran of United States (1: Indiana)
• Silurian of Argentina (1), Australia (1), Canada (4: Quebec), China (2), Czechia (8), Ireland (1), Italy (6), Lithuania (5), Sweden (7), the United Kingdom (3), United States (61: Illinois, Indiana, Iowa, New York, Tennessee, Wisconsin)
• Arenig of Argentina (1)
• Ordovician of Australia (1), Canada (5: Manitoba, Northwest Territories, Quebec), Estonia (11), Sweden (3), the United Kingdom (1), United States (26: Illinois, Iowa, Wisconsin, Minnesota, Ohio)
Total: 155 collections including 185 occurrences