Tergomya - Archinacellida - Metoptomatidae
Full reference: W. Wenz. 1938. Handbuch der Paläozoologie; Gastropoda. Handbuch der Paläozoologie 1-240
Parent taxon: Archinacelloidea according to P. J. Wagner 2023
See also Bouchet et al. 2005, Horný 1963 and Knight et al. 1960
Sister taxa: Archaeopragidae, Archinacellidae, Damilinidae, Solandangella
Subtaxa: Calloconus Lepetopsis Metoptoma
Type: Metoptoma
Ecology: epifaunal grazer
Distribution:
• Triassic of Hungary (1 collection), Italy (1)
• Permian of Cambodia (1), Canada (1: Alberta), China (2), Greece (1), Indonesia (1), Malaysia (1), United States (16: Arizona, New Mexico, Texas)
• Carboniferous of Antarctica (1), Australia (2), Canada (1: Alberta), Ireland (2), Poland (1), the United Kingdom (3), United States (10: Illinois, Indiana, Kansas, Nevada, Texas)
• Devonian of Australia (1), Austria (1), Canada (2: Northwest Territories), the Czech Republic (1), South Africa (1)
• Ordovician of Canada (2: Quebec)
Total: 53 collections including 63 occurrences