Anthozoa - Scleractinia - Rhizangiidae
Synonyms: Astrangidae Verrill 1869, Astrangiidae Verrill 1869
Parent taxon: Faviicae according to J. W. Wells 1956
See also Baron-Szabo 2006, Vaughan 1904 and Wells 1972
Sister taxa: Anthemiphylliidae, Faviidae, Meandrinidae, Merulinidae, Montlivaltiidae, Pectiniidae, Tropiphyllidae
Subtaxa: Arctangia Astrangia Bathangia Cladangia Cryptangia Culicia Oulangia Phyllangia Platyhelia Reussangia Rhizangia Septastrea Symbiangia
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Quaternary of Angola (1 collection), Barbados (1), Greece (1), Indonesia (1), Japan (1), Mexico (3), New Zealand (2), United States (18: Alaska, Florida, Georgia, Maryland, New York, North Carolina, South Carolina, Virginia)
• Blancan of United States (2: California)
• Pliocene to Pleistocene of United States (1: Florida)
• Pliocene of Colombia (1), France (4), Panama (3), United States (18: California, Florida, South Carolina)
• Miocene of France (25), Germany (1), India (1), Indonesia (2), Italy (1), New Zealand (6), Somalia (2), Spain (1), United States (19: Florida, New Jersey)
• Oligocene of France (5), Germany (1), Greece (1), Iran (1), Italy (6), Jamaica (1), New Zealand (1), Slovenia (1), Turkey (1), United States (2: California, Georgia)
• Eocene of Croatia (2), France (1), Hungary (1), Italy (1), Mexico (2), Slovenia (2), United States (10: Arkansas, Louisiana, Mississippi, Washington)
• Paleocene of Greenland (2), Italy (2), Slovakia (2), Slovenia (8), Spain (1), United States (3: Alabama, Texas)
• Cretaceous of Australia (1), the Czech Republic (1), Jamaica (1), Jordan (1), United States (7: California, New Jersey, Texas)
Total: 183 collections including 277 occurrences