†subclass Florideae (red algae)
Parent taxon: Rhodophyceae according to N. P. James et al. 1988
Sister taxa: Acrochaetium, Angulocellularia, Angusticellularia, Aoujgaliaceae, Archaeolithophyllales, Arthrodendron, Calcifoliida, Foliophycus, Gymnocodiaceae, Lomentarites, Solenoporaceae
Subtaxa: Corematocladus Dzhulfanellaceae Ungdarella Ungdarellaceae
Ecology: stationary epifaunal "photoautotroph"
Distribution:
• Permian of Armenia (5 collections), Azerbaijan (7), Greece (1), Indonesia (1), Italy (1), Malaysia (1), Oman (2), Turkey (3)
• Carboniferous of Algeria (2), Belgium (1), France (3), Ireland (2), Morocco (1), Spain (6), Ukraine (3), the United Kingdom (2), Uzbekistan (1)
Total: 42 collections each including a single occurrence