Gastropoda - Murchisoniina - Trochonematidae
Full reference: K. A. von Zittel. 1895. Grundzuge der Palaeontologie 1-971
Parent taxon: Trochonematoidea according to P. J. Wagner 2023
See also Bouchet et al. 2005, Golikov and Starobogatov 1975, Jeffery 2003, Knight et al. 1960 and Nützel and Ketwetsuriya 2016
Sister taxon: Lophospiridae
Subtaxa: Berouniconcha Globonema Guidonia Slehoferia Trochonema Trochonemella
Type: Trochonema
Ecology: epifaunal detritivore
Distribution:
• Jurassic of Germany (3 collections), Italy (1)
• Triassic of Argentina (1), Italy (2), Mexico (1), Peru (6)
• Permian of Cambodia (1), Peru (2)
• Devonian of Australia (1), Poland (1), United States (1: Alaska)
• Silurian of Australia (1), Canada (3: Nunavut), China (3), the Czech Republic (6), Estonia (1), Norway (1), Sweden (5), the United Kingdom (3), United States (4: Alaska, Wisconsin)
• Chazyan of Canada (3: Ontario, Quebec), United States (9: New York, Tennessee)
• Whiterockian of United States (1: Virginia)
• Ordovician of Australia (1), Canada (67: Manitoba, Northwest Territories, Nunavut, Ontario, Quebec), China (4), the Czech Republic (4), Estonia (2), Germany (1), Greenland (1), Iran (2), Norway (6), Sweden (2), the United Kingdom (4), United States (84: Alaska, California, Colorado, Illinois, Illinois, Iowa, Indiana, Iowa, Kentucky, Maine, Michigan, Minnesota, Nevada, Ohio, Tennessee, Vermont, Virginia, Wisconsin)
Total: 238 collections including 349 occurrences