Parent taxon: Ulvophyceae according to K. Tripalo 2017
See also Kundal 2014, LoDuca et al. 2021 and Mancinelli et al. 2004
Sister taxa: Cladophorales, Cyclocrinales, Siphonocladales, Ulvales, Vermiporella
Subtaxa: Aternasusaceae Codiaceae Halimedaceae Inocladus Pseudoudoteaceae Thalassocystis Udoteaceae
Ecology: stationary epifaunal "photoautotroph"
Distribution:
• Quaternary of Australia (8 collections), the Bahamas (4), Belize (11), Cook Islands (1), Curaçao (1), French Polynesia (12), Greece (3), Jamaica (2), Japan (4), Kenya (6), Madagascar (1), Maldives (1), the Marshall Islands (8), Mauritius (2), Mayotte (1), New Caledonia (3), North Pacific (1), Palau (1), Panama (1), Puerto Rico (1), the Seychelles (8), South Pacific (3), Turks and Caicos Islands (3), United States (7: Florida, Hawaii), Virgin Islands (1)
• Pliocene to Pleistocene of Guam (1)
• Pliocene of Australia (1), the Marshall Islands (1)
• Miocene of Algeria (1), Australia (2), Austria (1), Cyprus (2), Guam (1), India (6), Indonesia (1), Israel (1), Italy (5), Malaysia (1), Malta (2), the Marshall Islands (2), Morocco (4), Northern Mariana Islands (1), Romania (1), South Pacific (2), Spain (7), Türkiye (6)
• Eocene of China (3), Greece (1), Guam (1), India (24), Italy (1), Libya (1), Maldives (2), the Marshall Islands (1), Morocco (1), North Atlantic (11), South Pacific (2), Spain (1)
• Paleocene to Eocene of India (8), Iraq (3), Slovakia (1)
• Paleocene of China (11), Egypt (2), Greece (1), India (11), Iraq (4), Italy (2), Morocco (1), Oman (7), Slovakia (2)
• Cretaceous of Egypt (11), France (13), Germany (2), India (1), Iran (3), Iraq (21), Jordan (5), Mexico (1), Oman (2), Portugal (19), Romania (11), Serbia (1), Slovakia (1), Somalia (1), Spain (3), Venezuela (1)
• Jurassic of Algeria (1), Austria (2), Czechia (2), Indonesia (1), Italy (1), Mexico (1), Portugal (1), Qatar (1)
• Triassic of Austria (4), Greece (2), Hungary (1), Iran (2), Italy (13), Japan (3), Oman (2), Türkiye (2), United States (2: Idaho, Oregon)
• Permian of Canada (1: Nunavut), China (5), Croatia (1), Greece (2), Italy (1), Norway (1), Oman (1), the Russian Federation (1), Slovenia (1), Thailand (4), Türkiye (2), United States (11: Idaho, Kansas, Nevada, New Mexico, Texas)
• Carboniferous to Permian of the Russian Federation (1)
• Carboniferous of Austria (1), Canada (1: Nunavut), China (2), France (5), Ireland (1), Japan (2), Mexico (1), the Russian Federation (1), Spain (3), Türkiye (6), the United Kingdom (1), United States (18: Idaho, Iowa, Kansas, Nebraska, New Mexico, Oklahoma, Texas)
• Givetian of China (1)
• Devonian of Australia (6), Austria (3), Belgium (3), Canada (1: Alberta), China (1), Germany (2), Italy (2), the Russian Federation (4), Spain (1), Tajikistan (3)
• Silurian of Canada (2: Nunavut, Ontario), Sweden (2), United States (7: Alaska, Indiana, Michigan, New York)
• Whiterockian of Canada (1: Newfoundland and Labrador)
• Ordovician of Canada (1: Newfoundland and Labrador), China (4), Estonia (1), India (2), Kazakhstan (2), Norway (2), the Russian Federation (2), Sweden (1), the United Kingdom (1), United States (1: Tennessee)
• Cambrian of Canada (1: Northwest Territories), the Russian Federation (1)
• Ediacaran of China (1)
Total: 515 collections including 643 occurrences