†subfamily Tryblidiinae von Zittel 1899 (mollusk)
Tergomya - Tryblidiida - Tryblidiidae
Full reference: K. A. von Zittel. 1899. Text-book of Paleontology 1-520
Parent taxon: Tryblidiidae according to R. J. Horný 1963
See also Knight and Yochelson 1960
Sister taxa: Archaeophialinae, Archinacellina, Bipulvina, Drahomira, Drahomirinae, Kotysium, Litavina, Neopilininae, Peelipilina, Pentalina, Pragamira, Proplina, Proplininae, Retipilina, Tryblidium, Undicornu
Subtaxa: Helcionopsis Kosovina Pilina
Ecology: epifaunal grazer
Distribution:
• Silurian of the Czech Republic (1 collection), Sweden (4)
• Ordovician of Norway (1), United States (19: Illinois, Iowa, Minnesota, Missouri, Ohio, Tennessee)
Total: 25 collections each including a single occurrence