Full reference: T. Kobayashi. 1933. Faunal study of the Wanwanian (basal Ordovician) series with special notes on the Ribeiridae and the Ellesmereoceroids. Journal of the Faculty of Science Imperial University of Tokyo Section II Geology, Mineralogy, Geography, Seismology 3(7):249-328
Parent taxon: Ribeirioida according to P. J. Wagner 1997
Sister taxa: Ischyrinioidea, Technophoridae
Subtaxa: Jinonicella Rhytiodentalium Ribeiriidae
Ecology: stationary semi-infaunal suspension feeder
Distribution:
• Silurian of China (2 collections), Sweden (1), United States (2: Alaska, Utah)
• Dobrotivian of France (1), Morocco (1), Portugal (3), Spain (7)
• Arenig of Argentina (3), France (2), Morocco (1)
• Canadian of United States (1: Maryland)
• Ordovician of Argentina (4), Australia (13), Bolivia (2), Canada (7: Alberta, Ontario, Quebec), Czechia (22), France (4), Morocco (1), North Korea (1), Portugal (1), South Korea (1), Spain (4), Türkiye (1), the United Kingdom (4), United States (8: Iowa, Kentucky, New York, Pennsylvania, Texas, Utah, Vermont)
• Skullrockian of Canada (1: Alberta)
• Taoyuanian of China (1)
• Cambrian of Antarctica (2), Argentina (1), Australia (34), United States (1: New York)
Total: 137 collections including 154 occurrences