Rhynchonellata - Spiriferinida - Mentzeliidae
Parent taxon: Spiriferinoidea according to W. H. He and Z. Q. Chen 2016
Sister taxa: Paralaballidae, Sinucostidae, Spiriferinidae
Subtaxa: Madoinae Mentzeliinae Tethyspirinae
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Triassic of Austria (20 collections), Bosnia and Herzegovina (16), Bulgaria (1), China (53), Croatia (1), Germany (3), Hungary (41), India (2), Iran (8), Italy (43), Nepal (1), New Caledonia (1), New Zealand (1), Romania (6), the Russian Federation (5), Serbia and Montenegro (6), Slovakia (11), Slovenia (2), Thailand (1), Turkey (35), United States (1: Wyoming), Vietnam (1), Yemen (1)
• Permian of Pakistan (6)
Total: 266 collections including 370 occurrences