Rhynchonellata - Rhynchonellida - Cyclothyrididae
Parent taxon: Cyclothyrididae according to A. Williams et al. 2002
Sister taxa: none
Subtaxa: none
Type: Cyclothyris
Ecology: stationary epifaunal suspension feeder
Distribution:
• Cretaceous of Antarctica (4 collections), Belgium (11), Bulgaria (7), Croatia (1), the Czech Republic (9), France (43), Germany (9), Greenland (1), Hungary (2), India (1), Italy (2), Kazakhstan (1), Mexico (1), Morocco (1), the Netherlands (6), Poland (2), Portugal (2), Romania (1), the Russian Federation (19), Serbia and Montenegro (2), Slovenia (2), South Africa (2), Spain (41), Sweden (1), Switzerland (52), Tunisia (1), Turkmenistan (1), Ukraine (5), the United Kingdom (39), United States (16: Arizona, California, Montana, North Carolina, Texas)
• Temaikan of New Zealand (21)
• Jurassic to Cretaceous of the Russian Federation (2)
• Jurassic of Algeria (1), Bulgaria (3), Canada (1: Yukon), Chile (41), China (4), Egypt (2), Ethiopia (6), France (74), Germany (11), Greece (1), Greenland (2), Hungary (1), India (3), Iran (2), Italy (5), Kazakhstan (2), Madagascar (11), Nepal (1), New Caledonia (1), New Zealand (57), Poland (7), Portugal (2), Romania (2), the Russian Federation (18), Saudi Arabia (4), Serbia and Montenegro (4), Somalia (1), Spain (7), Switzerland (4), Turkmenistan (1), Ukraine (11), the United Kingdom (48), United States (3: California), Uzbekistan (1)
• Triassic of Austria (51), Bosnia and Herzegovina (9), Bulgaria (2), China (54), Hungary (18), Indonesia (6), Iran (10), New Caledonia (14), New Zealand (37), Papua New Guinea (1), Peru (7), Poland (2), Romania (3), the Russian Federation (4), Serbia and Montenegro (4), Slovakia (13), Turkey (1), United States (3: Alaska)
Total: 889 collections including 1052 occurrences