Parent taxon: Chlorophyta according to M. D. Guiry and G. M. Guiry 2025
Sister taxa: Amgaella, Bryopsidophyceae, Calathella, Caulerpites, Charophyceae, Chlorophyceae, Dasycladophyceae, Fuxianospira, Indopolia, Laenigma, Lanceoforma, Microfasta, Monostysisyrinaceae, Palaeomastigocladus, Physophycus, Proterotainia, Pseudopalaeoporella, Retephycus, Schizosporis, Sgrossoella, Sinocylindra, Sinophyllum, Sphaeroporella, Spheroporella, Tetrasporaceae, Thaumatoporellales, Timanella, Ulvophyceae, Yakutina
Subtaxa: Chuariales
Ecology: stationary epifaunal "photoautotroph"
Distribution:
• Cambrian of Iran (1 collection)
• Ediacaran of Burkina Faso (1), Canada (3: Nunavut), China (6), Iran (3), Namibia (1), the Russian Federation (6), Spain (1)
• Cryogenian of the Russian Federation (2)
• Tonian of Canada (7: Northwest Territories), the Russian Federation (1), Svalbard and Jan Mayen (1), United States (2: Arizona, Utah)
• Neoproterozoic of China (3)
• Statherian of China (6)
Total: 44 collections including 64 occurrences