†family Metacyathidae Bedford and Bedford 1934 (archaeocyath sponge)
Archaeocyatha - Archaeocyathida - Metacyathidae
Parent taxon: Metacyathoidea according to F. Debrenne et al. 2015
Sister taxa: Copleicyathidae, Jugalicyathidae, Sigmofungiidae
Subtaxa: Changicyathus Metaldetes
Type: Metaldetes
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Cambrian of Antarctica (2 collections), Australia (4), Canada (9: British Columbia, Newfoundland and Labrador, Northwest Territories), China (1), Mexico (3), United States (2: Nevada)
Total: 21 collections including 26 occurrences