Alternative spelling: Tryblidiacea
Full reference: K. A. von Zittel. 1899. Text-book of Paleontology 1-520
Parent taxon: Tryblidiida according to P. J. Wagner 2023
See also Horný 1963, Knight and Yochelson 1960, Rozov 1970, Runnegar and Jell 1976, Starobogatov 1970, Stinchcomb and Angeli 2002 and Wahlman 1992
Sister taxa: Ellsworthoconus, Hypseloconina, Kiringelloidea, Neopilinoidea, Tryblidiina
Subtaxa: Bipulvinidae Drahomiridae Neopilinidae Proplinidae Tryblidiidae
Ecology: epifaunal grazer
Distribution:
• Devonian of Australia (1 collection), the Czech Republic (1)
• Silurian of Canada (1: Nunavut), the Czech Republic (9), Estonia (3), Greenland (1), Sweden (4)
• Dobrotivian of the Czech Republic (1)
• Whiterockian of United States (1: Nevada)
• Ordovician of Canada (5: Ontario, Quebec), China (1), the Czech Republic (5), Greenland (1), Norway (1), Sweden (1), the United Kingdom (1), United States (43: Illinois, Iowa, Kentucky, Minnesota, Missouri, Nevada, Ohio, Tennessee, Texas, Vermont, Wisconsin)
• Tremadoc of United States (4: Missouri)
• Cressagian of South Korea (1)
• Solvan of Australia (1)
• Cambrian of Antarctica (3), Australia (2), United States (15: Minnesota, Missouri, Montana, New York, Wisconsin)
Total: 106 collections including 135 occurrences