Rhynchonellata - Rhynchonellida - Tetrarhynchiidae
Synonym: Triasorhynchiidae Xu and Liu 1983
Parent taxon: Hemithiridoidea according to A. Williams et al. 2002
See also Gradinaru et al. 2006 and Guo and Chen 2022
Sister taxa: Cyclothyrididae, Hemithirididae, Notosariidae, Septirhynchiidae
Subtaxa: Cretirhynchiinae Gibbirhynchiinae Isjuminellinae Kallirhynchiinae Multicorhynchia Tetrarhynchiinae Viarhynchiinae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Paleocene of Denmark (4 collections)
• Cretaceous of Antarctica (1), Austria (4), Belgium (14), the Czech Republic (1), Denmark (8), France (15), Germany (3), India (3), Italy (1), Kazakhstan (2), Madagascar (1), Portugal (2), Romania (1), the Russian Federation (13), Serbia and Montenegro (2), Spain (1), Switzerland (10), Turkmenistan (2), Ukraine (3), the United Kingdom (82)
• Jurassic of Afghanistan (1), Algeria (6), Argentina (3), Austria (7), Bulgaria (13), Canada (2: Alberta, British Columbia), Chile (125), China (18), Egypt (6), Eritrea (4), Ethiopia (36), France (374), Germany (14), Gibraltar (2), Greece (4), Greenland (35), Hungary (22), India (27), Iran (2), Israel (10), Italy (14), Jordan (45), Kenya (7), Madagascar (5), Morocco (6), Myanmar (13), New Zealand (6), Portugal (21), the Russian Federation (21), Saudi Arabia (251), Serbia and Montenegro (5), Slovakia (6), Somalia (25), Spain (320), Switzerland (9), Tunisia (36), Turkey (2), Ukraine (2), the United Kingdom (164), United States (4: California, Utah), Uzbekistan (2), Yemen (26)
• Triassic of China (10), Papua New Guinea (2)
Total: 1886 collections including 2747 occurrences