Trilobita - Trinucleida - Raphiophoridae
Alternative spelling: Endymioniidae
Parent taxon: Raphiophoridae according to O. A. Hoel 1999
See also Fortey 1975
Sister taxa: Ampyxina, Ellsaspis, Kanlingia, Lonchodomas, Malinaspis, Malongullia, Nambeetella, Nanshanaspis, Pseudampyxina, Raphioampyx, Raphiophorinae, Raymondella, Salteria, Sinampyxina
Subtaxa: Anisonotella Carinocranium Endymionia Lehnertia Pytine
Ecology: fast-moving low-level epifaunal suspension feeder
Distribution:
• Chazyan of Canada (1: Newfoundland and Labrador collection)
• Whiterockian of Canada (5: Newfoundland and Labrador), Norway (2), United States (2: Nevada)
• Billingen of Norway (1), Sweden (2)
• Arenig of China (1), Norway (1)
• Ordovician of Argentina (1), Australia (4), Canada (2: Alberta, Newfoundland and Labrador), China (4), Norway (3), the United Kingdom (6)
• Ibexian of Norway (1)
Total: 36 collections including 39 occurrences