Parent taxon: Chlorophyta according to Barattolo 1991
Sister taxa: Amgaella, Bryopsidophyceae, Calathella, Caulerpites, Charophyceae, Chlorophyceae, Dasycladophyceae, Fuxianospira, Grypania, Indopolia, Lanceoforma, Microfasta, Monostysisyrinaceae, Palaeomastigocladus, Physophycus, Proterotainia, Pseudopalaeoporella, Retephycus, Schizosporis, Sgrossoella, Sinocylindra, Sinophyllum, Sphaeroporella, Spheroporella, Tetrasporaceae, Timanella, Ulvophyceae, Yakutina
Subtaxa: Thaumatoporella
Ecology: stationary epifaunal "photoautotroph"
Distribution:
• Eocene of Egypt (1 collection)
• Paleocene of Slovenia (1)
• Cretaceous of Albania (2), Bulgaria (2), Croatia (5), France (7), India (2), Italy (89), Slovenia (6), Spain (3), Turkey (1)
• Jurassic to Cretaceous of Austria (1), Japan (1)
• Jurassic of Algeria (2), Austria (3), Croatia (1), France (3), Greece (1), Indonesia (1), Italy (11), Morocco (2), Portugal (2), Romania (1), Slovenia (6), Spain (2), Switzerland (1), Thailand (1), Tunisia (1), Ukraine (1)
• Triassic of Austria (8), Germany (2), Greece (1), Hungary (2), Iran (3), Italy (5), Oman (1), Serbia and Montenegro (1), Slovakia (3), Spain (1), United States (1: Oregon)
Total: 188 collections including 190 occurrences