Rhynchonellata - Pentamerida - Porambonitidae
Parent taxon: Syntrophioidea according to M. Liljeroth et al. 2017
See also Popov et al. 2005, Raymond 1911 and Williams et al. 2002
Sister taxa: none
Subtaxa: Eoporambonites Hibernobonites Porambonites
Ecology: stationary epifaunal suspension feeder
Distribution:
• Dobrotivian of France (2 collections)
• Whiterockian of Canada (1: Newfoundland and Labrador), United States (1: Nevada)
• Vaana of Estonia (1)
• Billingen of Estonia (3), the Russian Federation (10)
• Arenig of China (3), the United Kingdom (1)
• Arenigian of the Russian Federation (1)
• Dawan of China (3)
• Ordovician of Argentina (1), Belarus (1), Canada (2: Newfoundland, Quebec), China (7), Estonia (26), France (3), Iran (3), Ireland (5), Latvia (3), Lithuania (2), Myanmar (1), Norway (13), Portugal (2), the Russian Federation (43), Spain (1), Ukraine (1), the United Kingdom (5)
Total: 145 collections including 162 occurrences