Rostroconchia - Ribeirioida - Ischyriniidae
Alternative spelling: Ischyriniinae
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: Ischyrinioidea according to P. J. Wagner 2023
See also Bouchet et al. 2010 and Pojeta and Runnegar 1976
Sister taxa: none
Subtaxa: Anisotechnophorus Beukeria Eoischyrinia Ischyrinia Pauropegma Pseudotechnophorus Tolmachovia
Ecology: stationary semi-infaunal suspension feeder
Distribution:
• Dobrotivian of Spain (1 collection)
• Fennian of France (2)
• Arenig of Argentina (2)
• Ordovician of Australia (11), Canada (5: Quebec), Germany (1), the Netherlands (1), Norway (1), Portugal (1), the Russian Federation (4), Spain (4), United States (2: New York)
• Tremadoc of Argentina (1)
• Cressagian of South Korea (1)
• Cambrian of Australia (4), Canada (1: Nova Scotia), United States (2: New York)
Total: 44 collections including 47 occurrences