Parent taxon: Malleidina according to J. G. Carter et al. 2011
See also Chen and Stiller 2010 and Nevesskaja 2009
Sister taxa: Pinnoidea, Pterineidae, Pterioidea, Rhombopterioidea
Subtaxa: Aulacomyellidae Daonellidae Halobiidae Posidoniidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Cretaceous of Brazil (27 collections), Canada (4: Alberta, British Columbia), Chile (1), Colombia (1), Japan (3), Mexico (1), Nigeria (1), Trinidad and Tobago (1), Venezuela (2)
• Jurassic to Cretaceous of Antarctica (1)
• Jurassic of Antarctica (8), Argentina (15), Canada (67: Alberta, British Columbia, Yukon), Chile (27), China (2), France (2), Germany (5), Greece (1), Hungary (1), India (69), Iran (1), Italy (10), Japan (5), Kenya (1), Mexico (1), Morocco (9), Poland (7), Portugal (5), Romania (1), the Russian Federation (2), Slovakia (1), Somalia (4), Spain (12), Switzerland (124), Tanzania (4), Thailand (1), Tunisia (2), Turkey (1), Ukraine (1), the United Kingdom (47), United States (7: Alaska, California), Yemen (4)
• Kaihikuan of United States (2: Nevada)
• Triassic to Jurassic of United States (1: Alaska)
• Triassic of Afghanistan (4), Austria (51), Bosnia and Herzegovina (18), Bulgaria (4), Canada (94: British Columbia, Nunavut), Chile (5), China (78), Croatia (2), East Timor (14), Germany (8), Greece (1), Greenland (1), Hungary (42), India (7), Indonesia (56), Israel (1), Italy (118), Japan (22), Jordan (1), Laos (3), Malaysia (7), Mexico (2), Myanmar (1), Nepal (5), New Zealand (62), Norway (1), Oman (3), Papua New Guinea (2), Poland (1), Romania (11), the Russian Federation (164), Serbia and Montenegro (4), Slovakia (9), Slovenia (17), Spain (7), Svalbard and Jan Mayen (100), Switzerland (14), Tajikistan (2), Thailand (8), Turkey (7), Ukraine (1), the United Kingdom (1), United States (199: Alaska, California, Nevada, Oregon), Vietnam (21)
• Permian of Bosnia and Herzegovina (1), China (5), Italy (1), Japan (4), Norway (3), the Russian Federation (6), Turkey (1)
• Namurian of Spain (1)
• Carboniferous of China (2), the Czech Republic (3), France (1), Germany (1), India (1), Morocco (2), the United Kingdom (73), United States (13: Arkansas, Iowa, Kentucky, Nevada, New Mexico, Ohio, Texas, Virginia, Wyoming)
• Devonian of China (2), the Czech Republic (1), Germany (4), Italy (1), Libya (1), Poland (3), Spain (1), the United Kingdom (1), United States (1: New York), Vietnam (2)
Total: 1806 collections including 2500 occurrences